CLASS 137, FLUID HANDLING |
1 | PROCESSES: |
This subclass is indented under the class definition. Processes.
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154 | DIVERSE FLUID CONTAINING PRESSURE SYSTEMS: |
This subclass is indented under the class definition. Apparatus which contain under pressure a plurality of fluids
having diverse characteristics such as fluid phase (i.e., gas and
liquid) or specific gravity, and which fluids are in contact in
at least a part of the system.
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155 | . Gas lift valves for wells: |
This subclass is indented under subclass 154. Apparatus which controls a gas to be injected or introduced
into the liquid column of well to elevate the liquid.
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156 | . Gas pressure discharge of liquids feed traps (e.g., to boiler): |
This subclass is indented under subclass 154. Apparatus which includes a receiving chamber which holds
a liquid for subsequent discharge to a receiver at a higher pressure,
which discharge is controlled or enabled by the controlled application
of a gas pressure over the liquid equal to or greater than the pressure
to which the liquid is discharged.
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157 | .. Gas pressure controlled by amount of liquids in boiler or discharge receiver: |
This subclass is indented under subclass 156. Feed-traps wherein the application of gas pressure is controlled
by the amount of liquid in the discharge receiving receptacle, as
the boiler.
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158 | ... Pressure connection at liquid level in boiler or discharge receiver: |
This subclass is indented under subclass 157. Feed-traps which include a gas pressure connection at the
desired liquid level in the discharging receiver.
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159 | .. Gas pressure controlled by amount of liquid in trap: |
This subclass is indented under subclass 156. Feed-traps wherein the application of gas pressure is controlled
by the amount of liquid in the feed-trap chamber.
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160 | ... Plural trap chambers: |
This subclass is indented under subclass 159. Feed-traps which include a plurality of trap chambers.
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161 | .... Gravitating: |
This subclass is indented under subclass 160. Feed-traps wherein alternately acting feed traps are moved
by gravity to discharge their contents and the lowering of one trap
raises the other trap.
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162 | ... Gravitating vessel: |
This subclass is indented under subclass 159. Feed-traps wherein liquid accumulates in a vessel which
lowers by gravity upon the accumulation of a predetermined amount
of liquid therein to control the admission of gas pressure.
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163 | .... Sinking or bucket type float: |
This subclass is indented under subclass 162. Feed-traps wherein the vessel is an open-topped float which
floats in liquid and sinks when filled with liquid.
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164 | .... Pivoted vessel with fluid passage through pivot: |
This subclass is indented under subclass 162. Feed-traps wherein the vessel is pivoted and a fluid passage is provided through the pivot. | |
165 | ... Float responsive: |
This subclass is indented under subclass 159. Feed-traps wherein the gas pressure application is controlled
by a float in the feed-trap chamber.
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166 | .... Liquid control valve positively actuated: |
This subclass is indented under subclass 165. Feed-traps wherein a valve in the liquid flow line to or
from the trap is actuated by a distinct positively acting mechanism
in conjunction with the float control of the gas inlet.
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167 | .... Gas condensing type: |
This subclass is indented under subclass 165. Feed-traps which are not provided with a gas outlet, as the gas applied to discharge the trap is in the form of a readily condensed vapor such as steam which condenses to eliminate the gas pressure after discharge to allow subsequent filling of the trap. | |
168 | .... Gas inlet and outlet valves unitary: |
This subclass is indented under subclass 165. Feed-traps provided with gas inlet and outlet valves which
are integrally mounted on a single actuating stem.
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169 | .. Gas pressure controlled by manual or cyclic means: |
This subclass is indented under subclass 156. Feed-traps wherein the gas pressure application to the feed-traps
controlled by manual or cyclic means.
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170 | ... Movable trap chamber: |
This subclass is indented under subclass 169. Feed traps wherein the feed trap is moved into discharge
relationship with the receiver for discharge and the controlling
gas pressure is the pressure in the discharge receiver which may enable
discharge of the liquid by the mere flow connection of the trap
chamber to the receiver.
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170.1 | . Foam control in gas charged liquids: |
This subclass is indented under subclass 154. Apparatus in which the fluids comprise a liquid and a gas
which has been intentionally and desirably entrained in the liquid
to form a mixture which is subject to frothing under certain conditions
and having means for preserving or modifying the pressure of gas
in the mixture, thereby controlling the amount of froth released,
retained or formed in the handling of the mixture.
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170.2 | .. Level or pressure responsive: |
This subclass is indented under subclass 170.1. Apparatus having means for sensing a force exerted by the
mixture or of either of its component parts, or means for sensing
a fluid level, such means causing operation of a control device.
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170.3 | .. Separate handling of foam: |
This subclass is indented under subclass 170.1. Apparatus having means apart from the mixture handling means
for treating or disposing of the froth while it remains in the frothy
state either by discharging said froth, by extracting liquid from
it, or by storing or retaining it in a separate chamber.
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170.4 | .. With conditioning trap or chamber: |
This subclass is indented under subclass 170.1. Apparatus wherein the means for preserving or modifying
the pressure of the gas includes an enclosed vessel through which
such fluids pass and in which they are retained for a time.
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170.5 | ... Recarbonation: |
This subclass is indented under subclass 170.4. Apparatus having means associated with the vessel for withdrawing
evolved gas from the mixture and means whereby some or all of such
evolved gas may be returned to the mixture for reentrainment therein
before being discharged by the apparatus.
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170.6 | ... With trap or chamber by-pass: |
This subclass is indented under subclass 170.4. Apparatus having conduits or passages so connecting portions
of the apparatus that the mixture may be directed to a point of
discharge without passing through the vessel so that it is possible
to discharge either material which has been held or treated in the
vessel, material which has not been so treated, or a desired combination
of such materials.
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171 | . Fluid separating traps or vents: |
This subclass is indented under subclass 154. Apparatus which separates and provides for the removal of
one or more of the diverse fluids from the system.
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172 | .. Liquids separated from liquid: |
This subclass is indented under subclass 171. Separating traps wherein the diverse fluids are liquids
of different specific gravity.
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173 | .. Plural discriminating outlets for diverse fluids: |
This subclass is indented under subclass 171. Separating traps which are provided with plural discriminating
outlets each of which permits outflow of one fluid and prevents
outflow of other diverse fluids.
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174 | ... Common actuator for control valves: |
This subclass is indented under subclass 173. Separating traps wherein the outlets are valve controlled
and the valves have a common actuator.
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175 | ... Choke or restricted passage gas bleed: |
This subclass is indented under subclass 173. Separating traps wherein one of the discriminating outlets
is a restricted gas bleed, which by its small size acts or tends
to act as a discriminating gas outlet.
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176 | .... From above liquid level: |
This subclass is indented under subclass 175. Separating traps wherein the gas bleed has its inlet above the normal maximum liquid level in the trap chamber. | |
177 | .. Discriminating outlet for liquid: |
This subclass is indented under subclass 171. Separating traps wherein the separating trap is provided
with a discriminating outlet which permits outflow of liquid but
prevents outflow of gas.
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178 | ... With alternately operated inlet and outlet valves: |
This subclass is indented under subclass 177. Separating traps further provided with a valve controlling
a trap chamber inlet which is operated alternately with the outlet
valve.
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179 | ... With non-discriminating gas vent or liquid discharge: |
This subclass is indented under subclass 177. Separating traps provided with a nondiscriminating gas vent,
an additional nondiscriminating liquid outlet or an additional control
of the discriminating liquid outlet, the additional control being
such as to give a nondiscriminating action to the discriminating
outlet.
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180 | .... Abnormal pressure responsive liquid blow-off or drain: |
This subclass is indented under subclass 179. Separating traps wherein the additional liquid outlet or
additional control of the liquid outlet responds to a system pressure
either above or below the normal operating pressure.
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181 | .... Manual control: |
This subclass is indented under subclass 179. Separating traps wherein the nondiscriminating fluid discharge
is manually controlled.
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182 | ... With auxiliary inlet or by-pass valve: |
This subclass is indented under subclass 177. Separating traps further provided with a nondiscriminating
valve in the trap inlet or a valve providing a by-pass of the trap.
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183 | ... With fluid responsive valve: |
This subclass is indented under subclass 177. Separating traps wherein the discrimination is obtained
by an outlet valve which is responsive to a fluid condition.
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184 | .... Successively opened valves: |
This subclass is indented under subclass 183. Separating traps having a plurality of successively opened
liquid outlet valves.
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185 | .... Gas collecting float (e.g., inverted bucket): |
This subclass is indented under subclass 183. Separating traps wherein the valve closes in response to
the collection of gas in an open-bottom float.
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186 | ..... Downstream from valve: |
This subclass is indented under subclass 185. Separating traps wherein the float is located downstream from the valve. | |
187 | .... Level responsive: |
This subclass is indented under subclass 183. Separating traps wherein the valve is controlled by the
level of liquid in the trap.
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188 | ..... Weight or pressure: |
This subclass is indented under subclass 187. Separating traps wherein the valve is responsive to the
weight or pressure of accumulated liquid.
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189 | ...... Gravitating vessel: |
This subclass is indented under subclass 188. Separating traps wherein liquid accumulates in a vessel
which lowers in response to the weight of the liquid which lowering
controls the valve.
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190 | ....... Sinking or bucket type float: |
This subclass is indented under subclass 189. Separating traps wherein the vessel is an open-topped float
which floats in liquid and sinks when filled with liquid.
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191 | ........ Servo-control: |
This subclass is indented under subclass 190. Separating traps wherein the float operates a servo-mechanism
or pilot valve controlled device which in turn operates the valve.
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192 | ..... Float: |
This subclass is indented under subclass 187. Separating traps wherein the level responsive means is a
float.
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193 | ...... With main line gas outlet from trap chamber: |
This subclass is indented under subclass 192. Separating traps wherein the trap chamber is provided with
an inlet for gas and liquid, a discriminating outlet for liquid
and a nondiscriminating outlet for the main flow of the gas to a gas
distribution system.
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194 | ...... With outlet extending above liquid in trap: |
This subclass is indented under subclass 192. Separating traps wherein the discriminating liquid outlet
pipe rises above the normal liquid level in the trap chamber, thus
requiring the gas pressure in the chamber to discharge the liquid.
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195 | ...... Servo-control: |
This subclass is indented under subclass 192. Separating traps wherein the liquid outlet valve is controlled
by a servo mechanism or pilot valve operated means which is in turn
controlled by the float.
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196 | ...... With pressure balanced outlet valve: |
This subclass is indented under subclass 192. Separating traps wherein a plurality of coacting liquid
outlet valves are arranged to act in opposition or a single outlet
valve is provided with opposed surfaces to cancel out the effect
of internal pressure on the valve.
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197 | .. Discriminating outlet for gas: |
This subclass is indented under subclass 171. Separating traps wherein the trap is provided with an outlet
through which outflow of a gas is permitted but outflow of a liquid
or diverse gas therethrough is prevented.
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198 | ... With reverse flow stop or pressure regulating valve: |
This subclass is indented under subclass 197. Separating traps further provided with a pressure responsive
valve in the gas outlet which prevents reverse flow or regulates
the system gas pressure.
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199 | ... Fluid sensing valve: |
This subclass is indented under subclass 197. Separating traps wherein the discrimination is obtained
by an outlet valve which is responsive to a fluid.
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200 | .... With vaporized liquid stop: |
This subclass is indented under subclass 199. Separating traps wherein the valve or an additional device functions to stop normally liquid fluid which is vaporized, such as steam, in the system. | |
201 | ..... With separate return for condensate: |
This subclass is indented under subclass 200. Separating traps wherein a separate return path is provided
from the trap to the system for condensed vapor.
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202 | .... Float responsive: |
This subclass is indented under subclass 199. Separating traps wherein the valve is responsive to a float
member.
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203 | .. With liquid emptying means: |
This subclass is indented under subclass 171. Separating traps wherein the provision for removal of a
fluid from the system is a nondiscriminating liquid outlet.
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204 | ... Self-emptying: |
This subclass is indented under subclass 203. Separating traps wherein the outlet empties the system of
liquid of its own volition, as when the system pressure is removed.
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205 | . Liquid filling by evacuating container: |
This subclass is indented under subclass 154. Apparatus providing means whereby a container may be filled
with a liquid by evacuating the container either prior to or simultaneously with
the liquid filling.
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205.5 | . Main line flow displaces additive from shunt reservoir: |
This subclass is indented under subclass 154. Apparatus including a shunt line having a reservoir therein
containing a fluid diverse from that in the main line and wherein
the reservoir material is fed into the main line, without mixing
with main line material in the reservoir, by main line flow into
the shunt due to differential pressure along the main line.
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206 | . Gas pressure storage over or displacement of liquid: |
This subclass is indented under subclass 154. Apparatus wherein a gas under pressure is provided over
a body of liquid or is utilized to displace a liquid and a definite
coaction exists between the gas and liquid which affects the system.
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207 | .. Surge suppression: |
This subclass is indented under subclass 206. Apparatus wherein the gas is trapped in a dome over a liquid
from a liquid distribution system to suppress or absorb pressure
surges in the liquid system.
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207.5 | .. With return of liquid to supply: |
This subclass is indented under subclass 206. Apparatus in which the liquid in one part of the system
is allowed to flow back, is forced back, or is by-passed back to
the source of supply, in order to empty the system for cleaning,
storage, etc.
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208 | .. Plural units: |
This subclass is indented under subclass 206. Apparatus wherein a plurality of similarly functioning gas
pressure over liquid units are provided.
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209 | .. With gas maintenance or application: |
This subclass is indented under subclass 206. Apparatus wherein means are provided to maintain or apply
the gas pressure over or to the liquid.
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210 | ... Gas carried by or evolved from liquid: |
This subclass is indented under subclass 209. Apparatus in which the gas is derived from a liquid not
necessarily the liquid over which the gas acts.
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211 | .... Gas injectors: |
This subclass is indented under subclass 210. Apparatus with a device to add or inject gas into the liquid
of the system to replenish the gas over the liquid.
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211.5 | ... Gas injected by liquid pressure or flow: |
This subclass is indented under subclass 209. Apparatus including means to apply gas pressure over the
liquid said means utilizing the pressure of flow of the liquid to
apply the gas.
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212 | ... Unitary mounting for gas pressure inlet and liquid outlet: |
This subclass is indented under subclass 209. Apparatus wherein the gas pressure inlet and liquid outlet
have a common mounting adapted for manipulation as a unit for positioning
or removal from a gas and liquid container.
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213 | .. With liquid level responsive gas vent or whistle: |
This subclass is indented under subclass 206. Apparatus wherein a gas vent or whistle is opened in response
to a predetermined liquid level.
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214 | ... Combined high and low level responsive: |
This subclass is indented under subclass 213. Apparatus wherein the gas vent or whistle is opened in response
to a high and low liquid level.
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215 | BACK FLOW PREVENTION BY VACUUM BREAKING (E.G., ANTI-SIPHON DEVICES): |
This subclass is indented under the class definition. Apparatus which stop reverse flow of a liquid in a distribution
system by preventing or eliminating the vacuum condition which would cause
the reverse flow, such as a condition which would start siphoning.
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216 | . Air vent in liquid flow line: |
This subclass is indented under subclass 215. Apparatus wherein the back flow is prevented by an air vent
or gap in the liquid flow line.
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216.1 | .. With liquid seal in liquid flow line: |
This subclass is indented under subclass 216. Apparatus including a liquid seal means in the liquid flow
line.
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216.2 | ... Automatic valve in vent line: |
This subclass is indented under subclass 216.1. Subject matter including an automatic valve in the vent
line.
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217 | .. Valved: |
This subclass is indented under subclass 216. Apparatus wherein the air vent is provided with a valve.
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218 | ... With co-acting valve in liquid flow path: |
This subclass is indented under subclass 217. Apparatus wherein a valve is provided in the liquid flow
path which operates in conjunction with the air vent valve.
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219 | LARNER-JOHNSON TYPE VALVES; I.E., TELESCOPING INTERNAL VALVE IN EXPANDED FLOW LINE SECTION: |
This subclass is indented under the class definition. Flow control devices comprising a flow line having a contracted
portion, a valve seat adjacent said contracted portion and an internal coaxial
valve part comprising telescoping members, one of which is a movable
needle or valve head which engages said seat.
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220 | . Line condition change responsive: |
This subclass is indented under subclass 219. Flow control devices in which the valve is actuated in response
to a change in condition of the fluid handled.
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221 | . Internal servo-motor with internal pilot valve: |
This subclass is indented under subclass 219. Flow control devices in which a controlled motor device
comprising a pilot operated or servo-mechanism is involved, the
motor device and its pilot or control valve being located within
the internal part of the valve, i.e., the part comprising the telescoping
support and the needle or movable valve head lying within the flow
passage.
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222 | .. Pilot controlled passage in nose or needle: |
This subclass is indented under subclass 221. Flow control devices in which the pilot valve controls a
passage through the needle or movable part of the valve means internal
to the flow line.
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223 | INFLATABLE ARTICLE (E.G., TIRE FILLING CHUCK AND/OR STEM): |
This subclass is indented under the class definition. Apparatus comprising valved inflation stems of the type
attached to pneumatic tires and analogous inflatable articles, including
filling and/or relief extensions of such stems, valved
filling chucks or the type attached to pressure fluid supplying
conduits and employed to inflate such articles by means of the inflation
stems, and combinations of such inflation stems and filling chucks.
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224 | . With pressure-responsive pressure-control means: |
This subclass is indented under subclass 223. Apparatus having fluid pressure responsive means permanently
associated therewith for controlling the pressure therein or in
the inflatable article during the inflating operation or while the
inflatable article is in use.
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224.5 | .. Pulsating: |
This subclass is indented under subclass 224. Devices wherein the fluid is dispensed in successive charges until the predetermined pressure is reached. | |
225 | .. Diaphragm, bellows or expansible tube: |
This subclass is indented under subclass 224. Apparatus having a diaphragm, bellows or expansible tube
as the pressure responsive means.
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226 | .. Co-axial inflation and relief valves: |
This subclass is indented under subclass 224. Apparatus having inflation and relief valves on a common
axis.
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227 | . With gauge or indicator: |
This subclass is indented under subclass 223. Apparatus having a fluid pressure gauge or indicator combined
therewith.
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228 | .. With deflating means: |
This subclass is indented under subclass 227. Apparatus having means for releasing fluid from the article
being inflated while the gauge or indicator remains combined with
the filling chuck and/or stem.
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229 | .. Selectively connected: |
This subclass is indented under subclass 227. Apparatus having means whereby the gauge or indicator may be selectively placed in or out of communication with the filling passage of the chuck or stem. | |
230 | . Stem attached relief valve: |
This subclass is indented under subclass 223. Valved devices which are adapted to be mounted in the end
of a conventional pneumatic tire inflation stem to relieve excess
pressure.
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231 | . With coupling means: |
This subclass is indented under subclass 223. Apparatus having significant structure for connecting a
filling chuck to an inflation stem, or an inflation stem to a second
inflation stem or filling tube, the second stem or tube usually being
permanently associated with a tire.
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232 | . With cap: |
This subclass is indented under subclass 223. Apparatus, usually of the inflation stem type, having a
cap or closure for protecting and/or sealing the end thereof.
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233 | .. Valve actuating, assembling or locking means on cap: |
This subclass is indented under subclass 232. Apparatus in which the cap is provided with means for actuating,
locking in place, or assembling a valve located in an inflation
stem.
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234 | ... Valve manually seated: |
This subclass is indented under subclass 233. Apparatus in which the valve which is actuated, locked or
assembled is seated by manual manipulation.
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234.5 | . Removable valve head and seat unit (valve insides): |
This subclass is indented under subclass 223. Devices comprising one or more valve heads and their cooperating
seats formed in a sleeve or similar structural unit which is removable
as such from a tire stem.
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234.6 | WITH VEHICLE GUIDE OR SUPPORT, E.G., SERVICE STATION: |
This subclass is indented under the class definition. Fluid handling system combined with means for supporting,
guiding or confining a vehicle relative to fluid handling means
which supples a fluid to the vehicle, e.g., lubricant or fuel.
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236.1 | DISTRIBUTION SYSTEMS INVOLVING GEOGRAPHIC FEATURES: |
This subclass is indented under the class definition. Fluid handling systems including or specifically related
to a particular geographic feature, e.g., a hill, river, ocean shore,
city street, etc.
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237 | WITH CLEANER, LUBRICATION ADDED TO FLUID OR LIQUID SEALING AT VALVE INTERFACE: |
This subclass is indented under the class definition. Fluid handling systems having (1) devices to render the
system or parts thereof free from undesirable material, or (2) devices for
lubricating the system or parts thereof by adding a lubricating
medium to the stream of fluent material carried by the system or
(3) devices for preventing leakage between the valve and a solid
valve seat by introducing a liquid between the valve and its seat.
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238 | . Cleaning or steam sterilizing: |
This subclass is indented under subclass 237. Systems containing a means other than those causing or controlling
the normal or unmodified flow of the fluent material of the system for
removing germs or other undesirable internal or extraneous material
from the system itself or parts thereof, as distinguished from treating
the material being handled to remove undesirable material.
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239 | .. Reverse fluid flow: |
This subclass is indented under subclass 238. Systems in which the cleaning device includes a means for
causing a fluid to flow in the reverse direction to the normal flow
path to remove undesirable material from the system or parts thereof.
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240 | .. With separate material addition: |
This subclass is indented under subclass 238. Systems in which a separate material such as steam, air,
water, valve grinding compounds or other chemical or physical agents
are introduced into the fluent material of the system to clean parts
of the system.
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241 | .. Steam sterilizing: |
This subclass is indented under subclass 238. Systems in which steam is used as a medium for cleaning
germs or other infective agents from parts of the system.
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242 | .. Mechanical cleaning: |
This subclass is indented under subclass 238. Systems in which the undesired material is removed from
the device or system or parts thereof by the physical interaction
of two or more parts of the device or system, not including relations
or operations which are part of or necessary for flow handling.
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243 | ... Valve grinding motion of valve on seat: |
This subclass is indented under subclass 242. Systems in which the fluent material system or a part thereof
has means for giving the valve or its seat a motion which produces
cleaning or grinding of the valve and/or its seat.
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243.1 | .... Concentric stem: |
This subclass is indented under subclass 243. Devices in which the actuator is made up of an axial rod mounted within a sleeve. | |
243.2 | .... Spring pressed: |
This subclass is indented under subclass 243. Devices provided with a spring which permits regrinding of the valve head on its seat. | |
243.3 | .... Lost motion permits grinding: |
This subclass is indented under subclass 243. Devices provided with lost motion which permits the valve
to rotate on its seat before it leaves the seat upon opening.
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243.4 | .... With swivel-preventing means: |
This subclass is indented under subclass 243. Devices in which a normally swiveled connection between the head and stem is blocked to cause the head to rotate on the seat as the stem rotates. | |
243.5 | .... Nut releasable from body and/or stem: |
This subclass is indented under subclass 243. Devices comprising screw actuated valves in which the nut
is disconnected from the body or the stem, or both, to permit the
valve head to rotate without reciprocating.
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243.6 | .... With independent grinding actuator: |
This subclass is indented under subclass 243. Devices which are provided with means in addition to and independent of the normal valve actuator for imparting the grinding motion to the valve. | |
243.7 | ..... Separable: |
This subclass is indented under subclass 243.6. Devices in which the grinding means is normally removed from the valve. | |
244 | ... Cleaning member reciprocates in passage: |
This subclass is indented under subclass 242. Systems in which the fluent material system has a member
which has a reciprocating movement to enter a restricted passage
of the system to clean either or both parts, either the member, the
passage or the movement being nonworking characteristics of the
system; i.e., not contributing to the fluid flow causing or controlling
function of the system, though the member or passage may be carried
by a working part of the system.
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245 | .... By-pass cleaning: |
This subclass is indented under subclass 244. Systems in which the reciprocating member cleans a branch
channel.
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245.5 | .... Independent actuation: |
This subclass is indented under subclass 244. Devices wherein the means to actuate the cleaning means is independent of the valve actuator. | |
246 | . Liquid supplied at valve interface: |
This subclass is indented under subclass 237. Systems in which a separate fluid is applied between the
valve and its seats to seal the valve against passage of the fluent
material carried by the system.
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246.11 | .. Plural feed: |
This subclass is indented under subclass 246. Valves wherein plural feed means (other than gravity) are provided for the sealing liquid to cause flow thereof. | |
246.12 | .. Line pressure feed: |
This subclass is indented under subclass 246. Valves wherein line pressure is used to feed the sealing liquid. | |
246.13 | .. Feed by or with actuation: |
This subclass is indented under subclass 246. Valves wherein the feed means is actuated by the valve actuator or is so interrelated therewith that feeding of sealing liquid is dependent on valve actuation. | |
246.14 | .. Loss control: |
This subclass is indented under subclass 246. Valves having means to control or prevent the loss of sealing means to the line flow. | |
246.15 | .. Screw feed: |
This subclass is indented under subclass 246. Valves having a screw means (e.g., screw fed plunger) for feeding the fluid. | |
246.16 | ... With check valve: |
This subclass is indented under subclass 246.15. Valve having check valve means in the lubrication or sealing system. | |
246.17 | .... Excess relief: |
This subclass is indented under subclass 246.16. Valves having means to permit escape of the sealing liquid from its flow system to prevent excessive pressure therein or as an indication of complete flow therein. | |
246.18 | .... Jacking: |
This subclass is indented under subclass 246.16. Valves wherein the valve is lifted from its seat to aid actuation by the pressure of the lubricant. | |
246.19 | ... Jacking: |
This subclass is indented under subclass 246.15. Valves wherein the lubrication pressure lifts the valve
from its seat.
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246.2 | ... Seating: |
This subclass is indented under subclass 246.15. Valves wherein the lubrication pressure aids in seating of the valve. | |
246.21 | .. Spring biased piston feed: |
This subclass is indented under subclass 246. Valves wherein the lubricant feed means is a spring biased piston. | |
246.22 | .. External pressure: |
This subclass is indented under subclass 246. Valves wherein the sealing material is introduced into the valve under pressure from some means such as a grease gun or oil pump. | |
246.23 | .. Gravity or capillary feed: |
This subclass is indented under subclass 246. Valves wherein the lubricant flows by gravity or by capillarity. | |
247 | WITH LIQUID VALVES OR LIQUID TRAP SEALS: |
This subclass is indented under the class definition. Apparatus in which a liquid, maintained at the desired location
by some form of reservoir, is used as a seal or closure between
adjacent parts of a system containing either a gas or a liquid which
is lighter than the sealing liquid.
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247.11 | . Liquid seal in liquid flow line; flow liquid forms seal: |
This subclass is indented under subclass 247. Apparatus comprising a U-shaped flow passage which retains
a portion of a line flow liquid to provide a gas seal in the said
line.
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247.13 | .. Valves: |
This subclass is indented under subclass 247.11. Apparatus having a valve in the liquid flow line in or adjacent to the seal. | |
247.15 | ... Line condition change responsive: |
This subclass is indented under subclass 247.13. Apparatus in which the valve is responsive to a change in
the condition of the liquid in the flow line.
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247.17 | .... Plural valves or valve seats: |
This subclass is indented under subclass 247.15. Apparatus having a plurality of line condition responsive
valves or having such a valve which seats alternatively on one of
a plurality of seats.
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247.19 | .... Pivoted valve: |
This subclass is indented under subclass 247.15. Apparatus in which the valve is pivoted.
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247.21 | .... Ball valve: |
This subclass is indented under subclass 247.15. Apparatus in which the valve is a substantially spherical
element.
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247.23 | ..... Seats vertically up: |
This subclass is indented under subclass 247.21. Apparatus having a seat lying in a general horizontal plane
above the valve.
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247.25 | .. Seal replenishers: |
This subclass is indented under subclass 247.11. Devices having (1) a distinct compartment with a restricted
orifice which stores flow line liquid during flow and discharges
it into the seal after the flow ceases in order to assure a seal
or replace lost seal liquid, or (2) a connection to an outside source
of seal liquid for the same purpose.
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247.27 | .. Plural inlet: |
This subclass is indented under subclass 247.11. Devices having connections for a plurality of inlet pipes.
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247.29 | .. Divided and recombined passages: |
This subclass is indented under subclass 247.11. Devices having divided and recombined passage means for
flow liquid and/or air, for preventing seal loss by forward
siphonage.
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247.31 | .. Tangential inlet flow: |
This subclass is indented under subclass 247.11. Devices wherein the flow enters a leg of the U-shaped passage tangentially to the axis of the leg. | |
247.33 | .. Downward partition encircles projecting outlet: |
This subclass is indented under subclass 247.11. Seals in which the U-shaped passage is formed by a chamber
having a downwardly extending partition comprising an inverted cup and
a distinct outlet pipe which projects up into the cup.
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247.35 | .. Submerged inlet pipe end: |
This subclass is indented under subclass 247.11. Seals comprising a chamber having a distinct inlet pipe projecting thereinto and an outlet at a higher lever than the inlet pipe end opening. | |
247.37 | ... Hinged seal bowl: |
This subclass is indented under subclass 247.35. Seals wherein the chamber comprises an overflow seal bowl hinged for movement into and out of seal forming position. | |
247.39 | ... Distinct seal bowl in flow line connected casing: |
This subclass is indented under subclass 247.35. Seals wherein the chamber comprises a distinct overflow
seal bowl within a flow line connected closed casing.
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247.41 | .. U-seals: |
This subclass is indented under subclass 247.11. Seals wherein theU-shaped passage comprises a U-bend of which one leg thereof is an inlet pipe and constitutes the downflow column and the other leg is distinct and externally spaced from the first leg and constitutes the upflow column. | |
247.43 | ... Topside access beneath cover plate closed floor opening: |
This subclass is indented under subclass 247.41. Apparatus installed beneath a surface and having a top side access means located beneath an opening in the surface, the opening being provided with a removable cover plate. | |
247.45 | ... Enlarged upflow leg: |
This subclass is indented under subclass 247.41. Seals wherein the upflow leg or a portion thereof ahead of the overflow into the outlet is transversely larger than the downflow (inlet) leg. | |
247.47 | .... Topside access opening: |
This subclass is indented under subclass 247.45. Seals with a top side access means located above the liquid
seal level.
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247.49 | ... Even diameter legs: |
This subclass is indented under subclass 247.41. Seals wherein both legs of the U-bend have substantially uniform and like internal cross sections. | |
247.51 | .... Access opening: |
This subclass is indented under subclass 247.49. Seals having access means.
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248 | . Seal for relatively movable valving parts: |
This subclass is indented under subclass 247. Apparatus in which the liquid is used to seal a gap between
relatively movable valving parts of a valve in at least one position
of the valve, the liquid pool comprising in effect the seat for the
movable valve element.
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249 | .. Horizontally moving valve: |
This subclass is indented under subclass 248. Apparatus in which the movement of the valve has a component
in a horizontal plane.
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250 | ... Rotary: |
This subclass is indented under subclass 249. Apparatus in which the movement in a horizontal plane is
rotary.
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251.1 | . Liquid valves: |
This subclass is indented under subclass 247. Apparatus in which the sealing liquid alone performs a valving
function in response to either external control means or to fluid
pressure in the flow path, i.e., no flow conduit is withdrawn from
the liquid to open a flow path.
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252 | .. Branched passage for sealing liquid: |
This subclass is indented under subclass 251.1. Apparatus in which at least one side of the liquid valve
is provided with a branching path whereby as the sealing liquid
rises on that side beyond a predetermined point it divides into
a plurality of branches.
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253 | .. With auxiliary means for varying liquid level: |
This subclass is indented under subclass 251.1. Apparatus including auxiliary means independent of the flow path for adjusting or varying the height of the liquid in the valve. | |
254 | .. With baffle: |
This subclass is indented under subclass 251.1. Apparatus in which one or more baffles is provided either
in or above the liquid of the valve, usually to restrict, deflect,
or slow up sudden rising of the valving liquid.
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255 | PLURAL TANKS OR COMPARTMENTS WITH PARALLEL FLOW: |
This subclass is indented under the class definition. Apparatus having two or more tanks or compartments so connected
that (1) fluid from the same or different sources is separately
supplied to different tanks or compartments, and/or (2)
the tanks or compartments discharge separate fluid flows externally
of the system or to parts of the system other than one another.
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256 | . Sequentially filled and emptied (e.g., holding type): |
This subclass is indented under subclass 255. Apparatus having means for successively filling the tanks
and means for subsequently emptying the filled tanks in succession.
Many of the patents in this group of subclasses are directed to
milk pasteurization tank systems, wherein milk at pasteurization
temperatures is retained in a tank for a period of time before the
tank is emptied.
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257 | .. With relative rotation of tank group and filling head: |
This subclass is indented under subclass 256. Apparatus in which a group of tanks or compartments and
the filling means therefor are mounted for rotation with respect
to one another.
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258 | ... With rotary filling and emptying head: |
This subclass is indented under subclass 257. Apparatus in which the filling means rotates with respect
to the tank group and the filling means also includes means for
emptying the tanks.
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259 | . With housings, supports or stacking arrangements: |
This subclass is indented under subclass 255. Apparatus having means for enclosing some or all of the
tanks or compartments, means for positioning the tanks or compartments
with respect to a supporting surface or member other than the tanks
or compartments themselves, or constructional features specially designed
to permit stacking one upon another.
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260 | . Battery or electrolytic cell replenishment: |
This subclass is indented under subclass 255. Apparatus in which the tanks or compartments are storage
battery or electrolytic cells and means is provided for supplying
liquid thereto, usually to maintain a constant liquid level in the
cells.
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261 | .. Barometric supply: |
This subclass is indented under subclass 260. Apparatus in which the supply means comprises a closed container
elevated with respect to the cells and adapted to be placed in continuous
communication therewith, whereby, upon lowering of the liquid level
in the cell, liquid is supplied thereto.
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262 | . Flow dividing compartments: |
This subclass is indented under subclass 255. Apparatus in which fluid from a single source is supplied
to a plurality of compartments, each of which has a normally open
outlet, for the purpose of proportionally dividing the single flow
into a plurality of flows.
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263 | . Tank type manifold (i.e., one tank supplies or receives from at least two others): |
This subclass is indented under subclass 255. Apparatus in which one tank or compartment is arranged to
supply to and/or receive from a plurality of additional
tanks or compartments, with or without the intervention of a manifold.
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264 | . Tank within tank: |
This subclass is indented under subclass 255. Apparatus in which one tank is positioned within another.
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265 | . With cross connecting passage: |
This subclass is indented under subclass 255. Apparatus having a connecting passage whereby fluid may
flow between the tanks or compartments.
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266 | . With manifold or grouped outlets: |
This subclass is indented under subclass 255. Apparatus having (1) a filling and/or emptying or
venting manifold or (2) separate outlet conduits from plural tanks
or compartments arranged to terminate adjacent one another, usually
for convenience in discharging the contents of the several compartments.
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267 | .. Tank truck type: |
This subclass is indented under subclass 266. Apparatus in which the plural compartments are of the type
commonly mounted on a truck or other vehicle.
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268 | WITH HOLDER FOR SOLID, FLAKY OR PULVERIZED MATERIAL TO BE DISSOLVED OR ENTRAINED: |
This subclass is indented under the class definition. Fluid handling devices including a member for holding and
bringing a fluent material and a material to be dissolved or entrained
into contact with the fluid.
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269 | CONVERTIBLE: |
This subclass is indented under the class definition. Apparatus so designed that its mode of operation can be
changed by reassembling all or some of its parts in a different
relationship to each other or by the addition or omission of a part.
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269.5 | . Reversible check: |
This subclass is indented under subclass 269. Devices comprising check valves mounted in alternately positionable carriers whereby a carried valve may check fluid flow in either of two directions by repositioning the carrier. | |
270 | . Unit orientable in a single location between plural positions: |
This subclass is indented under subclass 269. Apparatus in which a part or a unitary subassembly of parts
may be assembled with the remainder of the apparatus in only one
location, but plural relative angular positions or orientations
with respect thereto are possible with corresponding changes in
the mode of operation.
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270.5 | .. Reversible stop and vent or waste: |
This subclass is indented under subclass 270. Devices comprising stop and vent or waste valve units having means to associate the waste port with either principal port. | |
271 | . Units interchangeable between alternate locations: |
This subclass is indented under subclass 269. Apparatus in which the mode of operation can be changed
by interchanging plural parts or unitary subassemblies. One of
the parts interchanged may be a mere plug or closure.
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272 | HYDRANT TYPE: |
This subclass is indented under the class definition. Fluid distributors characterized by a vertical delivery
riser with a valve at the bottom, to avoid freezing when installed
below the frost line, and an extended actuator for the valve, usually
for actuating the valve from a point adjacent the outlet from the
riser or an extension thereof.
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273 | . Water crane type: |
This subclass is indented under subclass 272. Apparatus including a laterally extending delivery spout
at the top of the riser for delivery of liquid, usually to movable
tanks, e.g., water to railroad locomotive tenders or gasoline to
tank trucks.
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274 | .. Spout operated valve: |
This subclass is indented under subclass 273. Apparatus in which the valve is actuated by movement of
the spout into delivery position.
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275 | .. Rotating riser: |
This subclass is indented under subclass 273. Apparatus in which the riser is rotatable about its axis
to position the spout for delivery of water.
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276 | ... Spout articulated to riser: |
This subclass is indented under subclass 275. Apparatus in which the spout is attached to the rotatable
riser by a flexible joint providing for movement of the spout in
at least one plane.
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277 | ... Vertically movable riser: |
This subclass is indented under subclass 275. Apparatus in which the riser is movable vertically as well
as rotatably.
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278 | .. Extensible spout: |
This subclass is indented under subclass 273. Apparatus in which the spout is extensible in a lateral
direction from the riser to vary its length.
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279 | .. Spout articulated to riser: |
This subclass is indented under subclass 273. Apparatus in which the spout is attached to the riser by
a flexible joint providing for movement of the spout in at least
one plane.
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280 | . Plural riser: |
This subclass is indented under subclass 272. Apparatus in which at least part of the riser is divided
into plural parallel fluid flow passages.
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281 | . Expansible chamber operated by valve actuator for draining riser: |
This subclass is indented under subclass 272. Apparatus including an expansible chamber near the bottom
of the riser and operated by movement of the riser and/or
valve actuator to evacuate water from the riser as the valve is closed
or receive the drain or waste after the valve is closed, and to
refill the riser as or before the valve is opened.
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282 | . With pump or ejector: |
This subclass is indented under subclass 272. Apparatus combined with a pump or ejector.
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283 | . Removable valve and valve seat: |
This subclass is indented under subclass 272. Apparatus in which a valve and its valve seat are so arranged
as to facilitate removal, usually where the valve opens downwardly.
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284 | .. With extension to facilitate removal: |
This subclass is indented under subclass 283. Apparatus in which the valve seat is provided with an extension independent of the riser, to facilitate its removal. | |
285 | . Removable valve with supplemental check valve: |
This subclass is indented under subclass 272. Apparatus in which the main valve is arranged to be removable,
and a supplemental check valve is provided, biased closed by a spring
or by fluid pressure and normally held open by a projection on the
main valve or its actuator when the main valve is in place.
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286 | . Movable riser actuated valve: |
This subclass is indented under subclass 272. Apparatus in which the riser serves as the actuator for
the valve, i.e., movement of the riser in a predetermined manner
actuates the valve.
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287 | .. Reciprocating riser: |
This subclass is indented under subclass 286. Apparatus in which reciprocating movement of the riser actuates
the valve.
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288 | ... Piston type valve: |
This subclass is indented under subclass 287. Apparatus in which the valve is a piston cooperating with
one or more ports in a cylindrical valve seat.
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289 | . Balanced valve: |
This subclass is indented under subclass 272. Apparatus in which the valve is balanced, i.e., has opposed
surfaces of equal or nearly equal area exposed to the line fluid
pressure.
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290 | . Valve actuator extends laterally from bottom of riser: |
This subclass is indented under subclass 272. Apparatus in which the valve actuator has at least one element
projecting in a generally horizontal direction adjacent the bottom
of the riser, or comprises a linkage such that the resultant movement
of the valve is in a generally horizontal direction.
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291 | . Valve actuator outside riser: |
This subclass is indented under subclass 272. Apparatus in which the extended valve actuator does not
extend longitudinally through the flow path or riser, but is located
entirely outside the riser.
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292 | .. Lever actuator: |
This subclass is indented under subclass 291. Apparatus in which the valve actuator includes a lever.
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293 | .. With casing, flush with ground or pavement surface: |
This subclass is indented under subclass 291. Apparatus with a ground supporting casing for at least the
upper end of the riser whereby the discharge end of the riser can
be at or below the surface of the ground or pavement where it is installed.
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294 | . With casing: |
This subclass is indented under subclass 272. Apparatus combined with an external enclosure for the riser,
valve casing or valve actuator or for a part thereof.
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295 | .. Flush with ground or pavement surface: |
This subclass is indented under subclass 294. Apparatus in which at least a portion of the casing provides
a ground supporting recess for the discharge end of the riser whereby
the discharge opening can be at or below the surface of the ground
or pavement where it is installed.
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296 | .. Cap, cover or hood: |
This subclass is indented under subclass 294. Apparatus in which the casing includes a cap, cover or hood
for the top or discharge outlet of the riser.
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297 | .. With heater: |
This subclass is indented under subclass 294. Apparatus which includes a heating means, e.g., a heat exchange
device or a gas or oil burner.
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298 | . With actuator lubricating means: |
This subclass is indented under subclass 272. Apparatus which includes means for lubricating the valve
actuator.
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299 | . With valve at outlet: |
This subclass is indented under subclass 272. Apparatus which includes one or more valves at outlets from
the riser, either in the riser or in a discharge spout, and provided
in addition to the main or foot valve of the riser.
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300 | . With supplemental valve: |
This subclass is indented under subclass 272. Apparatus which includes an additional valve independent
of the main valve and exposed to fluid upstream of the main valve.
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301 | . Protection against freezing: |
This subclass is indented under subclass 272. Apparatus which makes some provision for preventing freezing
of water in the riser or around the valve, by providing for its
removal from the hydrant, by arrangement of the connection to the
water main or by means provided inside the flow path.
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302 | .. Stop and waste: |
This subclass is indented under subclass 301. Apparatus in which freezing of water in the riser is prevented
by providing an auxiliary valve operated in at least one direction
by the actuator of the main valve for draining the riser when the
main valve is closed.
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303 | ... With disabling means: |
This subclass is indented under subclass 302. Apparatus including selective means for preventing operation
of the auxiliary or drain valve.
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304 | ... Separate relatively movable valves with single actuator: |
This subclass is indented under subclass 302. Apparatus in which the control valve and the drain valve
are relatively movable but are operated by a single actuator.
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305 | .... Unidirectional abutting connection between main valve or actuator and waste valve: |
This subclass is indented under subclass 304. Apparatus in which the drain valve is operated in only one
direction by abutment of a part thereof with the control valve or
a projection thereon or on the valve actuator, operation in the
other direction being by weight or spring bias.
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306 | .... With screw or gear in actuating mechanism: |
This subclass is indented under subclass 304. Apparatus in which the valve actuator includes a screw or
gear interposed between the main valve and the waste valve.
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307 | ... Reciprocating relatively fixed valves: |
This subclass is indented under subclass 302. Apparatus in which the control valve and drain valve are
relatively fixed and comprise a reciprocating body. A unitary body,
usually cylindrical, and cooperating with plural ports to accomplish
the stop and waste function is included in this subclass.
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308 | .... Waste through lower valve guide: |
This subclass is indented under subclass 307. Apparatus in which the drain passage is through a guide channel for a valve extension or the valve stem or actuator projection and below the normal travel limits of the valve. | |
309 | REVERSING VALVES - REGENERATIVE FURNACE TYPE: |
This subclass is indented under the class definition. Fluid handling devices comprising four-way reversing valves
disclosed for fluid distribution in connection with a regenerative
type of furnace, gas generator, or similar circuit having two connections
to two heat exchangers or regenerators, a connection for incoming
air or fuel or both, and a connection to the exhaust stack, the
valve being selectively movable into two positions; in one position
the incoming air or fuel is passed through a first heat exchanger or
regenerator to the furnace or gas generator, the exhaust gases passing
through the second heat exchanger or regenerator to the exhaust stack;
and in the other position of the valve the incoming air or fuel
is passed through said second heat exchanger or regenerator, to
the furnace or gas generator, and the exhaust gases pass through
said first heat exchanger or regenerator to the exhaust stack.
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310 | . With cooling: |
This subclass is indented under subclass 309. Reversing valves wherein a coolant, such as air or water,
is circulated in heat exchange relation with the valve, valve seat,
or operating parts thereof.
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311 | . Rotary reversing valve: |
This subclass is indented under subclass 309. Reversing valves wherein the valve is mounted for rotating
or oscillating motion.
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312 | WITH LEAKAGE OR DRIP COLLECTING: |
This subclass is indented under the class definition. Apparatus in which means are provided to catch or otherwise
dispose of material dripping, leaking or being discharged as waste material.
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313 | . Relatively movable receptacle or drain pipe and outlet: |
This subclass is indented under subclass 312. Apparatus in which either a receptacle or a pipe means is provided to collect the fluid dripping from an outlet after cessation of normal flow, the collecting means and the outlet being relatively movable. | |
314 | . Collector for waste liquid derived from solid, gas or vapor: |
This subclass is indented under subclass 312. Apparatus in which a collecting or drain means is provided
for a liquid which is derived from a solid, gas, or vapor.
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315.01 | WITH REPAIR, TAPPING, ASSEMBLY, OR DISASSEMBLY MEANS: |
This subclass is indented under the class definition. Subject matter wherein the parts of the fluid handling
system are equipped with means to restore the system to its former
condition, means for piercing or withdrawing a plug in the system,
or means for securing or taking apart parts of the system.
Figure 1: A typical example of the subject matter. REPAIRPATCH FOR RUPTURED FLUID TANK. A - Patch; B - Fluid tank; C - Rupture;D - Cable (to secure container to tank); E - Container; F - Peripheraledge; G - Tubular seal (fluid filled); H - Fluid bypass passage;J, K - Exterior surface with protruding eyelets; L - Triggeringwire. Figure 2: A typical example of the subject matter. DIVERSIONBLIND FITTING FOR PIPELINE REPAIR. A,B - Pipe sections; C, D - Flanges;E - Diversion blind fitting; F - Circular body section; G, H - Bolt holeswith bolts; J - Threaded pipe section; K - Pipe coupling; L - Fluidduct. SEE OR SEARCH THIS CLASS, SUBCLASS:
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315.02 | . Blowout preventer or choke valve device (e.g., oil well flow controlling device, etc.): |
This subclass is indented under subclass 315.01. Subject matter comprising a plurality of relatively movable
flow obstruction members controlling an annular fluid flow passage about
an axial rod or pipe, such as between a well casing and drill stem
or a fluid flow regulating device, in combination with a means for stopping
the abrupt escape of fluid in the annular space between a casing
supported enclosure and pipe, rod, tubing, or wireline.
Figure 1: A typical example of the subject matter. A - Blowoutpreventer; B - Main body; C - Vertical bore; D - Guideways; E -Upper and lower flanges; F - Bonnet; G - Ram (recriprocates duringnormal preventer operation); H - Bonnet body; J - Cylinder; K -Bonnet head. SEE OR SEARCH THIS CLASS, SUBCLASS:
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315.03 | . Solenoid or electromagnetically actuated valve: |
This subclass is indented under subclass 315.01. Subject matter wherein the valve is controlled by electricity
such as an electrically energized coil of insulated wire producing
a magnetic field within the coil.
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315.04 | . Pressure regulating type valve: |
This subclass is indented under subclass 315.01. Subject matter comprising a valve adapted to be connected
in a fluid line or fluid system for shutting off flow in response
to a fluid force in the nature of a thrust distributed over an area
in excess of a predetermined thrust.
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315.05 | .. Diaphragm type: |
This subclass is indented under subclass 315.04. Subject matter wherein the valve has a thin flexible member
(e.g., disk shaped, etc.) secured at its periphery to the valve
body and deformable by fluid pressure to act as an open and close
member for the valve.
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315.06 | . Gas or water meter replacing: |
This subclass is indented under subclass 315.01. Subject matter wherein means for restoring to a serviceable
condition or fitting together various parts so as to make into an operative
whole is directed to an instrument for measuring and recording the
quantity of a combustible mixture used for commercial or industrial
heating or for measuring and recording the quantity of water supplied
for commercial or industrial use.
Figure 1: A typical example of the subject matter. A - Riserpipe; B - Shutoff valve; C - Nipples; D - Union; E - Regulator;F - Nipples; G - Elbow; H - Union fittings; J - Gas meter. SEE OR SEARCH CLASS:
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315.07 | . Assembling or disassembling flexible tube or sleeve type valve: |
This subclass is indented under subclass 315.01. Subject matter wherein means comprises a flow regulating
clamp for regulating the flow of fluid through a resilient or pliable hollow
elongated, usually cylindrical body or a flexible, resilient elastomeric
tubular part designed to fit over another part together with means
to constrict the tubular part so as to regulate, throttle, or terminate
the flow of fluid.
Figure 1: A typical example of the subject matter. A - Tubingclamp assembly; B - Clamp body; C - Passage; D - Parallel side walls;E - End wall; F - Restricted opening; G - Threaded shank; H - Threadednut. Figure 2: A typical example of the subject matter. A - Hollowhousing; B - Sleeve portion; C - Process fluid containing pipeline.Motive fluid fills actuating space between housing "A" and sleeve"B". SEE OR SEARCH THIS CLASS, SUBCLASS:
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315.08 | . Assembling or disassembling float or float valve: |
This subclass is indented under subclass 315.01. Subject matter comprising a hollow buoyant element usually
attached at the end of a lever and providing positive buoyancy while resting
on the surface of the fluid.
Figure 1: A typical example of the subject matter. A - Tank;B - Valve body; C - Bung hole; D - Mounting flange; E - Float arm;F - Float. SEE OR SEARCH THIS CLASS, SUBCLASS:
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315.09 | . Assembling or disassembling multi way valve: |
This subclass is indented under subclass 315.01. Subject matter comprising a device wherein a single flow
regulating element regulates a plurality of flow lines.
Figure 1: A typical example of the subject matter. A - Valvebody; B, C, D - Radial ports; E - Cylindrical bore; F - Spindle(mandrel); G, H, J, K, - O-rings; L - Thin protective sleeve; M- Spindle cap. In operation, "G" and "H" seal the valve againstloss of fluid; "J" and "K" divide the space between spindle andbore into three discrete flow passages. SEE OR SEARCH THIS CLASS, SUBCLASS:
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315.11 | . Assembling, disassembling, or mounting cartridge type valve (e.g., insertable or removable as a unit, etc.) |
This subclass is indented under subclass 315.01. Subject matter comprising means, usually replaceable and
designed to permit ready insertion or removal, and usually consists
of a single, self-contained assembly.
Figure 1: A typical example of the subject matter. A - Valveassembly; B - Support box; C - Valve module or cartridge; D - Valveoperating means; E - Flow passageway. | |
315.12 | .. Faucet type (e.g, domestic water use, etc.): |
This subclass is indented under subclass 315.11. Subject matter comprising a fixture for drawing a liquid
from a pipe, cask, or other vessel for household use.
Figure 1: A typical example of the subject matter. A - Faucetassembly; B - Inlet nipples; C - Support deck; D - Base plate; E- Cover plate; F - Spout (outlet); G - Operator (knob) ; H - Readilyremovable plate. SEE OR SEARCH THIS CLASS, SUBCLASS:
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315.13 | ... Including removable valve head and seat unit: |
This subclass is indented under subclass 315.12. Subject matter wherein the disk part of the faucet and the
ring on which the disk part rests are adapted to be assembled into
a unitary construction and can be replaced as one single assembly.
Figure 1: A typical example of the subject matter. A - Valvestem assembly; C - Valve seat; D - Sleeve opening; F - Valve stem;G - Washers; H - Packing nut; J - Packing; K - Fluid inlet; L -Fluid outlet. Figure 2: A typical example of the subject matter. A - Valvestem assembly; B - Sleeve; C - Valve seat; D - Sleeve Opening; E- Valve member controls fluid; F - Valve stem; G - Washers. SEE OR SEARCH THIS CLASS, SUBCLASS:
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315.14 | ... Including mechanical movement actuator: |
This subclass is indented under subclass 315.12. Subject matter wherein the significance is attributed to
moving parts of the mechanism that transmit definite motion to the component
of the valve or to the valve itself, such that the motion provided
at the input (actuator) end of the mechanism is different in direction
or distance traveled than the motion at the output (valve) end of
the mechanism.
Figure 1: A typical example of the subject matter. A - Faucetbody; B - Valve stem; C - Upper sleeve with internal threads; D- Lower rod with external threads; E - Valve head; F - Valve seat;G - Direction of water flow; H - Gland nut; J - Threaded lock nut;K - Compression spring to urge "E" against "F"; L - Annular frictionring; M - Deformable "O" ring; N - Packing material; P - Commonconduit. SEE OR SEARCH THIS CLASS, SUBCLASS:
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315.15 | ... Particular handle or handle fastening means: |
This subclass is indented under subclass 315.12. Subject matter wherein the significance is attributed to
a faucet adapter for adapting a part that is designed especially
to be grasped by hand for mounting on the valve stem of various
configurations.
Figure 1: A typical example of the subject matter. A - Spout;B - Valve stem; C - Adaptor; D - Faucet handle; E - Skirt. SEE OR SEARCH CLASS:
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315.16 | . Assembling or disassembling pivoted valve: |
This subclass is indented under subclass 315.01. Subject matter comprising flow regulating means wherein
the disk or plug unit of the regulating means swings around the
means by which it is mounted with respect to the seat or casing
of the regulating means.
Figure 1: A typical example of the subject matter. A - Valvehousing; B - Mounting flanges; C - Pivot shaft; D - Valve seat;E - Valve flapper; F - Deflector; G - Inlet port; H - Outlet port;J - Clevis and pin assembly; K - Lever arm; L - Wear surface; M- Centering lugs. SEE OR SEARCH CLASS:
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315.17 | . Assembling or disassembling rotary valve: |
This subclass is indented under subclass 315.01. Subject matter comprising flow regulating means wherein
the head of the regulating means turns or revolves about its axis.
Figure 1: A typical example of the subject matter. A - Valvecasing; B - Fluid inlet; C - Fluid outlet; D - Fluid passage throughvalve; E - Valve seat; F - Rotary valve head; G - Valve head openings;H - Valve head hub; J - Valve stem; K - Valve handle; L- Springto hold valve seat. SEE OR SEARCH THIS CLASS, SUBCLASS:
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315.18 | .. Rotary ball valve: |
This subclass is indented under subclass 315.17. Subject matter wherein the flow regulating means comprises
a housing having a flow passage therethrough and a seat for the regulating
means and a spherical plug type closure member that contacts the
seat and can be rotated about an axis passing generally through its
geometrical center by an actuating means.
Figure 1: A typical example of the subject matter. A - Barstock type ball valve; B - Ball type valve member; C - Elongatedvalve bore; D -Ball rotation axis; E - Valve stem; F - Valve handle;G, H - Valve seats; J - Housing axis; K, L - Valve open ends connectedto pipelines. In operation, fluid flows through the housing whenbore "C" is in alignment with axis "J" and fluid flow is blockedwhen ball "B" is rotated 90 degrees so that bore "C" is transverseto axis "J". SEE OR SEARCH THIS CLASS, SUBCLASS:
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315.19 | ... Particular valve seat or interface seal: |
This subclass is indented under subclass 315.18. Subject matter wherein the significance is attributed to
a usually circular ring on which the valve head rests or to a tight,
perfect enclosure or joint that is formed by resting of the valve
head on the ring.
Figure 1: A typical example of the subject matter. A - Valvebody; B - Intake port; C - Outlet port; D - Ball element; E - Fluidpassage; F - Seal seat assembly; G - Seal seat assembly; H - Sealseat; J - "O" rings. Note: Ball "D" is engaged (inlet side) by sealseat assembly "F" and (outlet side) by seal seat assembly "G". SEE OR SEARCH CLASS:
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315.2 | .... Replaceable: |
This subclass is indented under subclass 315.19. Subject matter comprising seat or sealing element so constructed
or arranged as to be readily removed and restored to its former condition.
Figure 1: A typical example of the subject matter. A - Valvebody; B - Inlet; C - Outlet; D - Valve opening to provide access;E - Valve stem; F - Valve seating surface; G - Annular valve seat;H - Cylindrical recess to support "G"; J - Hole in valve body intersectsrecess "H" to receive rod "L"; K - Plug to close hole "J"; L - Rod facilitatesseat removal. SEE OR SEARCH CLASS:
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315.21 | ..... With top entry valve: |
This subclass is indented under subclass 315.2. Subject matter wherein the upper part of the flow regulating
means can be dismounted by being withdrawn vertically up from the
housing of the regulating means while the lower part remains inside
the housing so that the seat and the seal adapter of the regulating
means can be inspected, overhauled, or replaced without the regulating
means being discontinued from the flow passageway.
Figure 1: A typical example of the subject matter. A - Valvebody; B - Fluid passages; C - Valve element; D - Trunion; E - Socket;F - Plate removable from top; G - Trunion; H - Valve seats; J -Valve seat shoulder. SEE OR SEARCH THIS CLASS, SUBCLASS:
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315.22 | .. Butterfly valve: |
This subclass is indented under subclass 315.17. Subject matter wherein the significance is attributed to
a valve comprising a substantially flat and coplanar wing depending from
a central axis of rotation.
Figure 1: A typical example of the subject matter. A - Pipe,duct, or conduit; B - Throttle or butterfly valve; C - Adjustabledrive motor; D - Valve stem or rod. SEE OR SEARCH THIS CLASS, SUBCLASS:
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315.23 | ... Having valve head or seat packing: |
This subclass is indented under subclass 315.22. Subject matter comprising a sealing material or element
carried by the disk part of the valve or the circular ring on which
the disk part rests.
Figure 1: A typical example of the subject matter. A - Valveseat; B - Valve stem; C - Butterfly leaf; D - Ring packing. SEE OR SEARCH CLASS:
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315.24 | ... With head and stem connections: |
This subclass is indented under subclass 315.22. Subject matter comprising means for attaching the disk part
of the valve and the rod element by means of which the disk part
is moved to open and close the valve.
Figure 1: A typical example of the subject matter. A - Valveclosure member; B - Valve shaft; C - Joint connections for valve;D - Boss; E - First valve passage receives shaft end "F"; G - Secondvalve passage; H - Shaft end driven by hand or power driven means;J - Tapered key; K - Groove on shaft "B" to engage key "J" SEE OR SEARCH CLASS:
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315.25 | .. Plug valve: |
This subclass is indented under subclass 315.17. Subject matter comprising a cylindrical or conical element
that can be turned to rotate on its own axis and has a flow passage through
it and at least the inlet or outlet of that passage is transverse
to the axis of rotation.
Figure 1: A typical example of the subject matter. A - Valvebody; B - Tapered bore to receive plug valve; C - Plug valve; D- Inlet passage; E - Outlet passage; F - Through port in valve openposition; G - Valve chamber cover; H - Valve stem; J - Biasing spring;K - Seal ring. SEE OR SEARCH THIS CLASS, SUBCLASS:
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315.26 | ... Having retainer at actuator end: |
This subclass is indented under subclass 315.25. Subject matter wherein means for holding the plug valve
head in the body is one the same side of the head as the valve mechanism
that is being used for opening or closing the valve.
Figure 1: A typical example of the subject matter. A - Valvebody; B - Valve chamber; C - Valve plug or element; D - Valve stem;E - Valve handle; F - Inlet passageway; G - Outlet passageway; H- Hollow open end of "C"; J - Inner end of "D" is disposed without"J". | |
315.27 | . Assembling or disassembling reciprocating valve: |
This subclass is indented under subclass 315.01. Subject matter wherein the flow regulating means has a linear
motion to and from the flow obstructing position.
Figure 1: A typical example of the subject matter. A - Valvebody; B - Valve seat; C - Valve element; D - Inlet fluid conduit;E - Outlet fluid conduit; F - Lower fluid chamber; G - Upper fluidchamber; H - Internal wall; J - Valve stem; K - Valve handle. SEE OR SEARCH THIS CLASS, SUBCLASS:
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315.28 | .. Having particularly packed or sealed mechanical movement actuator: |
This subclass is indented under subclass 315.27. Subject matter wherein the valve stem that transmits motion
to the valve is specifically associated with means which is being assembled
into a compact group or is being firmly secured to prevent fluid
leakage.
Figure 1: A typical example of the subject matter. A - Facestem; B - Bonnet; C, D - Bonnet peripheral surfaces connect to facestem "A"; E - Packing sleeve engages bonnet "B"; F - Outer "O" ringprovides seal between "E" and "B"; G - Packing assembly made of pluralityof packing rings "H"; H - Packing rings; J - Packing bushing. SEE OR SEARCH CLASS:
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315.29 | .. Gate valve: |
This subclass is indented under subclass 315.27. Subject matter wherein the valve comprises essentially a
flat or wedge-shaped sliding barrier that can be lowered into a
seat to seal off the flow or raised into an external recess for
a partial or full flow condition.
Figure 1: A typical example of the subject matter. A - Valvebody; B - Bonnet; C - Valve stem mechanism; D - Gate valve; E, F- Seal assemblies; G, H - Flow passages; J - Valve stem; K - Valveoperator; L - Valve hand wheel. SEE OR SEARCH THIS CLASS, SUBCLASS:
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315.3 | ... Bifaced: |
This subclass is indented under subclass 315.29. Subject matter wherein the valve head has two seating or
sealing surfaces.
Figure 1: A typical example of the subject matter. A - Valveassembly; B - Blind valve plates; C - Blind valve apertures; D -Resilient seats; E - Metal inserts; F - Apertured body liners; G- Apertured gate; H - Gate aperture; J - Hand wheel (rotation of"J" causes "G" to rise or descend between "F"; K - Sealing plates;L - Gasket; M - Packing or seal; N - Packing gland. | |
315.31 | ... Having particular valve seat: |
This subclass is indented under subclass 315.29. Subject matter wherein the significance is attributed to
a normally stationary and usually circular element which cooperates
with the valve.
Figure 1: A typical example of the subject matter. A - Valvebody; B - Valve bonnet or cover; C - Wedge-type slide valve; D -Valve seats; E - Flow passages; F - Valve stem; G - Stuffing box;H - Internal valve stop; J - Drain. SEE OR SEARCH CLASS:
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315.32 | .... Including seal: |
This subclass is indented under subclass 315.31. Subject matter wherein a separate element is being disposed
between the valve seat and the seat supporting body structure to
prevent leakage.
Figure 1: A typical example of the subject matter. A, B- Seal members; C - Through conduit gate valve; D - Valve body;E, F - Aligned flow passages; G, H - Flanges to connect flow system;J - Valve chamber; K - Gate having passage "L"; L - Gate valve openportion; M - Gate valve solid portion; N - Valve stem. SEE OR SEARCH CLASS:
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315.33 | . Assembling or disassembling check valve: |
This subclass is indented under subclass 315.01. Subject matter comprising flow regulating means which automatically
limits the fluid flow to a single direction and is sensitive to
the fluid pressure.
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315.35 | . With mechanical movement between actuator and valve: |
This subclass is indented under subclass 315.01. Subject matter wherein the significance is attributed to
repair, assembly, or disassembly of moving parts of the mechanism
that transmit a definite motion to the valve or valve component.
Figure 1: A typical example of the subject matter. A, B, C,D - Constitute valve assembly; E - Flanged orifice of the container;F - Valve seat; G - Movable valve member; H - Valve head; J - Valvestem; K - Valve operating mechanism or mechanical movement actuator; L - Connecting rod; M - Crank; N - Shaft; P - Operating lever securedto "N" (not shown); Connecting rod "L" cooperates with "G" for positiveopening of valve. SEE OR SEARCH THIS CLASS, SUBCLASS:
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315.36 | .. Plural motions of valve: |
This subclass is indented under subclass 315.35. Subject matter wherein the mechanical movement actuator
provides more than one movement of the valve or valve component which
movements are concurrent or consecutive.
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315.37 | .. Lever type: |
This subclass is indented under subclass 315.35. Subject matter wherein the mechanical movement actuator
comprises an elongated rigid means pivoted at one point to a support and
having the actuating power and the valve connection at at least
two other points.
Figure 1: A typical example of the subject matter. A - Hollowvalve body; B, C - Inlet and outlet channels; D, E - Valve flanges;F - Rotary plug; G - Plug passageway; H - Valve seal; J - Valveoperator mechanism; K - Lever arm; L - Outer tubular handle; M -Operator housing. SEE OR SEARCH THIS CLASS, SUBCLASS:
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315.38 | .. Gear type: |
This subclass is indented under subclass 315.35. Subject matter wherein the mechanical movement actuator
comprises (1) relatively movable toothed members, round, linear,
or irregular, which transmit motion by meshing of the teeth during
travel of the members, and (2) friction gearing in which the members
lack teeth, and the force is transmitted by pressing one moving
surface against the other, including those have one endless flexible
member or belt.
Figure 1: A typical example of the subject matter. A - Bodyof the gauge cock or valve; B - Connection to wate gauge or otherarticle; C - Disc closure or cutoff; D - Valve operating handle;E - Valve stem; F - Valve plug coacts with valve seat "G"; G - Valveseat. Figure 2: A typical example of the subject matter. A - Bodyof the gauge cock or valve; B - Connection to water gauge or otherarticle; C - Disc closure or cutoff. Notes (1) Rotation of the collar"H" (see Figure 1) causes the rotation of the cutoff or disc closure"C"; this motion is being transmitted through the gear or gear element"M" (Figure 1), through gear "J" (see Figure 1), the gear shaft"K" (see Figure 1), pinion "L", and the gear or gear element "N".(2) The pinion "L" that meshes with the gear or gear element "N"is formed on the disc closure or cutoff "C" and is segmental type locatedon the arcuate slot "P" formed in cutoff "C". SEE OR SEARCH THIS CLASS, SUBCLASS:
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315.39 | .. Cam type: |
This subclass is indented under subclass 315.35. Subject matter wherein the mechanical movement actuator
comprises an eccentrically mounted rotating or swinging member or members,
the varying radii of which produce varying positions of the valve.
Figure 1: A typical example of the subject matter. A - Actuatorknob; B - Actuator handle; C - Bearing portion; D - Cylinder bore;E - Valve stem; F - Pin; G - Slot; H - Valve; J - Actuator. Note:The bearing portion "C" is rotatable in bore "D" and axis of bore"D" is offset from axis of valve stem "E"; Pin "F" or slot "G" providea connection between actuator "J" and valve "H"; pin "F" is eccentricto axis of bore "D". SEE OR SEARCH THIS CLASS, SUBCLASS:
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315.4 | .. Screw type: |
This subclass is indented under subclass 315.35. Subject matter wherein the mechanical movement actuator
comprises a simple machine consisting of a spirally grooved solid cylinder
and a correspondingly grooved hollow cylinder of equal dimension
which is operable to reciprocate the movable valve member through
connecting means but does not impart the rotary motion of the machine
to the valve member.
Figure 1: A typical example of the subject matter. A, B- Valve end portions; C - Cylinder externally threaded at "D"; E- Elongated needle valve; F - Hollow cap type actuator internallythreaded at "G". SEE OR SEARCH THIS CLASS, SUBCLASS:
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315.41 | . Tool for applying or removing valve or valve member: |
This subclass is indented under subclass 315.01. Subject matter wherein the significance is attributed to
the specific features of the instrument that is being used for manipulating the
flow regulating means or its component.
Figure 1: A typical example of the subject matter. A - Valvespring compression tool; B - "C" frame; C - Fixed pad; D - Aperture;E - Movable pad; F - Structure to move "E" toward or away from "C";G - Valve; H - Valve washer; J - Valve spring; K - Valve stem; L- Engine block. Note: When "G" bears against "E" and "H" against"C", "J" is compressed and valve "G" is disassembled. SEE OR SEARCH CLASS:
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315.42 | .. Including sealing feature: |
This subclass is indented under subclass 315.41. Subject matter wherein the significance is attributed to
a tool which is being used for temporarily sealing a valve connection
to a conduit or a tool for blocking or precluding flow of fluid
through a conduit means, from a tank, or from a similar fluid containing
vessel.
Figure 1: A typical example of the subject matter. A - Openingto be sealed; B - Hollow support; C - Actuating rod; D - Flangedcollar; E - Annular seal; F - Washer; G - Series of links; H - Nut;J - Clamp block. SEE OR SEARCH CLASS:
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316 | . With holding means functioning only during transportation assembly or disassembly: |
This subclass is indented under subclass 315.01. Devices having combined with a part of the device a fixture,
attachment, support, or stop, which is inoperative in the assembled operating
device, for (1) supporting and/or aligning parts of the
device during assembly or disassembly, or (2) for immobilizing a
moving part of the device other than an actuator or taking the pressure
off a wear surface to permit transportation or safe storage.
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317 | . Tapping a pipe, keg, or apertured tank under pressure: |
This subclass is indented under subclass 315.01. Devices in which access is gained to a closed container
or system by means of a connectable device or tap which comprises
a flow passage to receive material from the system and means to
form an opening in or open a closed passage of the system, either
by removing a plug or by opening a valve which has no other actuating
means, the connection being made in a manner which prevents loss
of material from the system and/or admission of extraneous
matter to it.
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318 | .. With aperture forming means: |
This subclass is indented under subclass 317. Devices in which the connectable means carries a cutter
or punch for making the opening in the closed system through which
flow will occur. The aperture may be formed at the time the connection
is placed, or subsequently by operation of means carried by the
connectable means.
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319 | .. Imperforate closure removing and holding tap: |
This subclass is indented under subclass 317. Devices in which the system has an opening closed by a plug,
cap, cork or other imperforate closure, and the connectable part
has means to engage, completely remove and hold the closure, which
may or may not be replaced in closing position upon disconnection
of the parts.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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320 | .. With valved closure or bung: |
This subclass is indented under subclass 317. Devices in which the system is provided with a valved opening,
the valve having no externally operable actuator, and the connectable
means either opens the system valve as the coupling is made or carries
an actuator which engages the valve as a result of the coupling,
being manipulated subsequently to open and close the valve.
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321 | ... Combined rotary and longitudinal movement of valve: |
This subclass is indented under subclass 320. Devices in which the valve means of the system comprises
a head which moves axially and rotationally with respect to its
seat, usually as a result of being engaged with a screw type actuator
or tap.
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322 | ... Longitudinal movement of valve: |
This subclass is indented under subclass 320. Devices in which the valve opens with a straight line motion
with reference to the axis or the outlet when engaged by the connectable device
or the actuator carried thereby.
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323 | ... Rotary movement of valve: |
This subclass is indented under subclass 320. Devices in which the valve rotates around the axis of the flow path when actuated by engagement with the connecting means at the attached flow device or by the actuator carried thereon. | |
324 | .. With core ejectors: |
This subclass is indented under subclass 317. Devices in which the system is closed by a bung or cork
or other frictionally held closure and the connectable part has
a portion, usually tapered, which enters the opening so closed and
pushes or drives out the closure.
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325 | ... Impact operated: |
This subclass is indented under subclass 324. Devices in which the connectable or tapping member is forced into the opening by blows delivered by a means which is ordinarily not part of the system, the member being provided merely with a surface designed to receive the blow. | |
326 | . Foot valve extraction from top of enclosure: |
This subclass is indented under subclass 315.01. Devices comprising a container having an access opening
at the top and a valve located in a part of the container remote
from the access opening usually at the bottom, with means for disassembling
and removing the valve and/or its seat through the access
opening.
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327 | . With disassembly tool engaging feature: |
This subclass is indented under subclass 315.01. Devices one or more parts of which have a member for interlocking
with a tool for disassembling the part or disengaging the part from
the device.
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328 | .. Wrench engaging lugs: |
This subclass is indented under subclass 327. Devices in which the interlocking means are projections or ears for engaging the jaws of a wrench. | |
329 | . With provision of alternate wear parts: |
This subclass is indented under subclass 315.01. Devices having a part or parts made in attached duplicate
form or of extensive area movably mounted in such a manner the worn or
injured part may be replaced by a duplicate part or another unworn
surface to restore the device to its former condition.
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329.01 | .. Valve heads and/or seats: |
This subclass is indented under subclass 329. Devices relating to valve heads and/or seats.
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329.02 | ... Opposite duplicate surfaces of unitary structure: |
This subclass is indented under subclass 329.01. Devices having oppositely disposed duplicate surfaces forming
a unitary structure.
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329.03 | .... Homogeneous material: |
This subclass is indented under subclass 329.02. Devices relating to an homogeneous material forming the surfaces and their intermediate support. | |
329.04 | ..... Valve heads: |
This subclass is indented under subclass 329.03. Devices relating to valve heads. | |
329.05 | ... Different portions of continuous surfaces: |
This subclass is indented under subclass 329.01. Devices in which different portions of the same surface are adjusted to a certain position to form a valve interface. | |
329.06 | ... Successively used adjacent independent elements: |
This subclass is indented under subclass 329.01. Devices in which are stored adjacently a plurality of separate elements forming duplicate surfaces successively used. | |
329.1 | . Removable valve with normally disabled supplemental check valve: |
This subclass is indented under subclass 315.01. Apparatus in which the main valve is arranged to be removable
and a supplemental check valve is provided upstream, biased to close
by fluid pressure and/or a spring; the check-valve being
maintained inoperative in normal use of the main valve.
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329.2 | .. Check valve disabled by normally movable main valve part: |
This subclass is indented under subclass 329.1. Devices in which the check valve is biased opened by a part of the main valve which is movable in normal usage of the main valve. Usually a spacer or projection between the check valve and main valve is provided. | |
329.3 | ... Ball check: |
This subclass is indented under subclass 329.2. Devices in which the check valve is of the ball-check type. | |
329.4 | ... Spring bias: |
This subclass is indented under subclass 329.2. Devices having a spring bias to close the check valve or to supplement the bias of the fluid. | |
330 | NON-VALVING MOTION OF THE VALVE OR VALVE SEAT: |
This subclass is indented under the class definition. Apparatus in which means is provided for moving either a
valve or a valve seat with respect to its cooperating member independently
of opening or closing movement in such a direction or between such
limits as to be ineffective to open or close the valve, usually
to reduce friction or to prevent sticking or to equalize wear.
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331 | . Rotary motion of a reciprocating valve: |
This subclass is indented under subclass 330. Apparatus which provides means for imparting rotary motion
to a reciprocating valve.
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332 | .. Turbine on valve: |
This subclass is indented under subclass 331. Apparatus in which the rotating means is a turbine mounted
on the valve or valve stem.
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333 | .. Manual rotating means: |
This subclass is indented under subclass 331. Apparatus in which a manual actuator is provided for rotating the valve. | |
334 | WITH HEATING OR COOLING OF THE SYSTEM: |
This subclass is indented under the class definition. Fluent material device to which has been added means for
heating or cooling the device or the fluent material.
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335 | . With burner: |
This subclass is indented under subclass 334. Apparatus in which the source of heat for the device includes
a burner.
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336 | .. Flue extending through fluid: |
This subclass is indented under subclass 335. Apparatus in which an enclosed passageway for gases and flames from the burner extends through the fluid. | |
337 | . Hot and cold water system having a connection from the hot to the cold channel: |
This subclass is indented under subclass 334. Fluid handling systems comprising hot and cold water systems
having a cross connection from the hot water channel to the cold
water channel to permit flow of hot water to the cold water channel.
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338 | . Air heated or cooled (fan, fins, or channels): |
This subclass is indented under subclass 334. Fluid handling systems in which (1) air as a heating or
cooling fluid for the system has a thermally caused movement through
channels whereby it is warmed by contact with the earth and/or
an object buried in the earth, such as a pipe line; or (2) the fluent
material system or a part thereof is equipped with a fan or fins
to aid in the heating or cooling of the device or the fluid by heat
exchange with the air.
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339 | . With diversion of part of fluid to heat or cool the device or its contents: |
This subclass is indented under subclass 334. Apparatus in which a part of the fluid is diverted in a
separate channel to heat or cool the device or a part thereof, or
to heat or cool another part of the fluid that has assumed a different
temperature.
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340 | . Circulating fluid in heat exchange relationship: |
This subclass is indented under subclass 334. Apparatus in which a heating or cooling medium circulates
in a channel which is in heat exchange relationship with the fluent
material device or part thereof.
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341 | . With electric heating element: |
This subclass is indented under subclass 334. Apparatus in which an electric heating element is used to
heat the fluid or the device or a part thereof.
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342 | WITH FLUID SYSTEM SUPPORT FOR WORKMAN OR NON-SYSTEM MATERIAL: |
This subclass is indented under the class definition. Apparatus comprising a fluent material handling device combined
with a fixture or attachment carried by the device or a part thereof
exterior of the flow path for supporting material or articles that
may be used in conjunction with the device or its contents or for supporting
persons, usually workmen who are tending the fluent material handling
device.
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