CLASS 137, FLUID HANDLING |
1 | PROCESSES: |
This subclass is indented under the class definition. Processes.
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2 | . With control of flow by a condition or characteristic of a fluid: |
This subclass is indented under subclass 1. Processes in which one or more conditions or characteristics
of a fluent material are determined and used to control the system
in such a manner as to cause delivery of controlled quantities of
a fluent material at a part of the system.
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3 | .. Mixing of plural fluids of diverse characteristics or conditions: |
This subclass is indented under subclass 2. Processes in which two or more fluent materials of different
conditions or characteristics are mixed and the determined condition
or characteristic may be taken from any or all the fluent materials
and used to control the quantitative flow in any or all the branches
or in the mixed channel.
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4 | ... Controlled by consistency of mixture: |
This subclass is indented under subclass 3. Processes in which the determined condition is the consistency
of the mixture.
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5 | ... Controlled by conductivity of mixture: |
This subclass is indented under subclass 3. Processes in which the determined condition is the conductivity
of the mixture.
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6 | ... Controlled by heat of combustion of mixture: |
This subclass is indented under subclass 3. Processes in which the determined condition or characteristic
is the heat of combustion of the mixture.
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7 | ... Controlled by pressure: |
This subclass is indented under subclass 3. Processes in which the determined condition or characteristic
is a pressure.
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8 | .. For producing uniform flow: |
This subclass is indented under subclass 2. Processes in which one or more characteristics or conditions
of a fluent material is determined and used to control the system
in such a manner as to cause a uniform flow of a fluent material
through a part of the system.
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9 | .. For producing proportionate flow: |
This subclass is indented under subclass 2. Processes in which one or more conditions of a fluent material
is determined and used to produce or control the flow of a fluent
material at a part of the system, which flow is regulated by the
condition or conditions sensed so as to vary proportionally therewith.
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10 | .. By speed of fluid: |
This subclass is indented under subclass 2. Processes in which the condition or characteristic determined
is the speed of the fluent material of the system.
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11 | .. For regulating boiler feed water level: |
This subclass is indented under subclass 2. Processes in which one or more conditions or characteristics
of a fluent material is determined and used to control the flow
of boiler feed water.
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12 | .. By fluid pressure: |
This subclass is indented under subclass 2. Processes in which the condition or characteristic which
is determined is a fluid pressure and the determination is used
to cause delivery of controlled quantity of a fluent material at
a part of the system.
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12.5 | . Carbonated beverage handling processes: |
This subclass is indented under subclass 1. Processes for handling potable liquids which are impregnated
with gas.
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13 | . Affecting flow by the addition of material or energy: |
This subclass is indented under subclass 1. Processes in which the flow of fluent material is facilitated
by the addition of material which affects the flow characteristics
of the fluent material, or by the application of heat or other forms
of energy.
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14 | . Involving pressure control: |
This subclass is indented under subclass 1. Processes in which the pressure of the fluent material is
reduced for the purpose of facilitating handling of the material
or avoiding damage to the equipment, or equalized with the pressure
in another part of the system or a container to facilitate transfer
of the fluent material or of control thereof, or regulated to maintain the
pressure of the fluent material at a desired value.
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15.01 | . Cleaning, repairing, or assembling: |
This subclass is indented under subclass 1. Subject matter wherein the method comprises the removal
of undesirable material from the system, restoration of the system
or its component to a sound condition, or connecting together various
components of the system.
Figures 1, 2, and 3: A typical example of the subject mattershowing various steps of assembling and mounting a faucet structure.A - Sink deck; B - Valve stem; C - Nut; D - Protective shield; E- Groove; F - "C" clip; G - Spout tube; H - Spout bolt; J - Clampingscrew; K - Wrench; L - Draw spout. SEE OR SEARCH THIS CLASS, SUBCLASS:
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15.02 | .. Repairing or assembling hydrant (e.g., fireplug, etc.): |
This subclass is indented under subclass 15.01. Subject matter wherein the process of repairing or assembling
is directed to a system having a discharge pipe including a valve
and a spout, at which water may be drawn from a water main or water
system.
Figure 1: A typical example of the subject matter. A - Firehydrant; B - Nozzle; C - Cap; D - Jet of water; E - Nozzle expanderbolted to "B" by bolts "F"; F - Bolts; G - Shutoff valve; H - Flange;J - Bolts secure to "E" and "G". SEE OR SEARCH THIS CLASS, SUBCLASS:
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15.03 | .. Gas or water meter repairing or assembling: |
This subclass is indented under subclass 15.01. Subject matter wherein the process of repairing or assembling
is directed to an instrument for measuring and recording the quantity
of combustible mixture used for commercial or industrial heating
or for measuring and recording the quantity of water supplied for
commercial or domestic use.
A typical example of the subject matter. Figure 1: A - Gasmeter; B - Outlet gas supply; C - Control valve; D - Regulator;E - Riser nipple; F - Relief valve. Figure 2: A - Water meter; B - Backflow prevention valve;C - Meter pit; D - Coaxial fitting; E - Fluid conduit; F - Flowcontrol valve; G - Fittings to facilitate meter mounting. SEE OR SEARCH THIS CLASS, SUBCLASS:
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15.04 | .. Fluid cleaning or flushing: |
This subclass is indented under subclass 15.01. Subject matter wherein the process of comprises injecting
a pressurized gas, liquid, or a mixture of flowable solid and liquid
through the system to eliminate or wash out the material from the
system.
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15.05 | ... Liquid cleaning or flushing: |
This subclass is indented under subclass 15.04. Subject matter wherein the process of washing out or eliminating
the undesirable material from the system is accomplished by use
of a desirable material which is a fluid that is not in gaseous
form.
Figure 1: A typical example of the subject matter. Brake cylinder"A" is filled with brake liquid "B". Inlet valve "C" is providedfor introduction of new brake liquid. The outlet valve "D" is forremoval of spent brake liquid due to purging. SEE OR SEARCH CLASS:
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15.06 | .... Valve or valve seat cleaning: |
This subclass is indented under subclass 15.05. Subject matter wherein the flushing liquid is being passed
through the body of a flow regulating device or around the circular
ring or annular sealing surface used for resting or supporting the
head of the device.
Figure 1: A typical example of the subject matter. A - Seatassembly; B - Valve seat; C - Replaceable gasket; D - Representswashing fluid being flushed; E, F - Path of washing fluid throughslots of gasket. SEE OR SEARCH THIS CLASS, SUBCLASS:
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15.07 | .. Mechanical cleaning (e.g., pig, etc.): |
This subclass is indented under subclass 15.01. Subject matter comprising an internally movable element
consisting of a brush, scraper, inflatable ring, or similar means
used for removing undesirable material from the system.
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15.08 | .. Repairing, securing, replacing, or servicing pipe, joint, valve, or tank: |
This subclass is indented under subclass 15.01. Subject matter wherein the process is directed to a tubular
product, coupling, a flow regulating device, or a container or receptacle.
Figures 1and 2: A typical example of the subject matter. A- Supply main; B - Pipe saddle; C - Pipe conduit; D - Coupling;E - Flange adaptor; F - Coupled assembly; G - Standard tool; H -Control valve. SEE OR SEARCH CLASS:
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15.09 | ... Including joint or coupling: |
This subclass is indented under subclass 15.08. Subject matter wherein the significance is attributed
to a union formed by two abutting pipes or ducts, an area at which
two ends or edges of the pipe or duct are attached, or a device
that serves to connect the ends of adjacent parts of a pipe or duct.
A typical example of the subject matter. Figure 1: COUPLING:A, B - Flanges; C - Gasket; D - Band; E, F - Welds; G - Seat; H,J - Sealing nuts; K - Bolt. Figure 2: PIPE JOINT: A - Pipe Joint; B, C - Pipe; D - Internalshelf; E - Connector; F - Fitting. SEE OR SEARCH CLASS:
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15.11 | ... Detecting or repairing leak: |
This subclass is indented under subclass 15.08. Subject matter wherein the significance is attributed
to discovering or determining presence or existence of a crack,
crevice, or hole that usually by wear and tear or mishap allows gas
or liquid to escape, and restoring to a sound condition by patching,
applying, or injecting a liquid, semi-liquid, or semi-solid material
to prevent gas or liquid entry to or loss from a pipe, duct, container,
or valving system.
A typical example of the subject matter. Figure 1: INJECTINGSEALANT: A - Leak repair clamp; B - Pipe line; C - Cavity for receivingsealant; D - Passageway for sealant injection; E - Stopper plug. Figure 2: FLEXIBLE PATCH: A - Sealing leak; B - Pipe; C- Sealing patch. SEE OR SEARCH THIS CLASS, SUBCLASS:
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15.12 | ... Tapping pipe, keg, or tank: |
This subclass is indented under subclass 15.08. Subject matter wherein the significance is attributed
to piercing an aperture or removing a plug from a tubular product,
a small cask or barrel, or a container or receptacle used for transporting,
holding, or storing a gas or liquid.
Figure 1: A typical example of the subject matter. A - Concretetube or pipe; B - Tensioned wires; C - Cement coating; D - Sealinggland; E - Shell cutter; F - Film (auxiliary coating); G - Saddle;H - Straps; J - Saddle neck; K - Gasket; L - Tightening bolts; M- Grout; N - Valve casing; P - Valve; Q - Adapter for tapping machine;R - Tapping machine; S - Conduit for fluid under pressure; T - Cuttingmachine shaft; V - Centering drill. SEE OR SEARCH THIS CLASS, SUBCLASS:
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15.13 | .... Particular aperture forming means: |
This subclass is indented under subclass 15.12. Subject matter wherein the significance is attributed
to creating a hole, gap, indentation, or a narrow, deep opening.
Figure 1: A typical example of the subject matter. A - Nipple(outer end); B - Exterior threads; C - Enlarged outer end portion;D - Perforating tool; E - Exterior taper; F Main pipe; G - Allenwrench; H - Passageway; J - Valve. SEE OR SEARCH THIS CLASS, SUBCLASS:
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15.14 | ..... Cutter or cutting tool: |
This subclass is indented under subclass 15.13. Subject matter comprising a shearing device to remove
a portion of the pipe or keg to provide an aperture.
Figure 1: A typical example of the subject matter. A - Cutterassembly; B - Piston; C - Recess; D - Bushing; E - Resilient ring;F - Cutter; G - Tubular insert; H - Annular ring; J - Pipe wall;K - Cut portion (coupon); L - Allen wrench; M - Piston movement. SEE OR SEARCH CLASS:
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15.15 | ..... Having deformable or inflatable means: |
This subclass is indented under subclass 15.13. Subject matter wherein the method of forming an aperture
further includes sealing by use of an abnormally expandable bladder,
compressible stopper, or similar resilient member.
Figure 1: A typical example of the subject matter. A - Pipemain; B - Resilient plug (inflatable); C - Inner rod; D - Saddle;E - Opening in pipe; F - Pipe plug; G - Stopper rod; H - Intermediaterod; J - U-bolt; K - Service tree. SEE OR SEARCH CLASS:
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15.16 | ... With content loading or unloading (e.g., dispensing, discharge assistant, etc.): |
This subclass is indented under subclass 15.08. Subject matter comprising a method of filling the pipeline
or tank with a substance or material or removing a substance or
material from a pipeline or tank.
Figure 1: A typical example of the subject matter. A - Vessel;B - Viscous material; C - Gear pump; D - Drain opening; E - Boss;F - Valve body; G - Flange connection; H - Side outlet; J - Piston;K - Actuator; L - Hose; M - Container; N - Solenoid valve. SEE OR SEARCH THIS CLASS, SUBCLASS:
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15.17 | ... Specific valve or valve element mounting or repairing: |
This subclass is indented under subclass 15.08. Subject matter wherein the significance is attributed
to the process of installing, replacing, or servicing a flow regulating
device or its component.
Figure 1: A typical example of the subject matter. A - Valveassembly; B - Interior wall; C - Distribution pipe; D - Tank; E- Tank inlet; F - Main valve; G - Water inlet line; H - Flexibletube; J - Fittings. SEE OR SEARCH THIS CLASS, SUBCLASS:
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15.18 | .. Valve or valve element assembling, disassembling, or repairing: |
This subclass is indented under subclass 15.01. Subject matter wherein the significance is attributed
to the process of installing, replacing, or securing a flow regulating
device or its component.
Figure 1: A typical example of the subject matter. A - Valvebody; B - Inlet port; C - Outlet port; D - Flanges; E - Valve chamber;F - Seat sections; G - Valve body portion; H - Hanger surface; J- Hanger recess; K - Clapper; L - Annular ring; M- Spherical segment;N - Annular recess; P - Clapper pin; Q - Bushing. SEE OR SEARCH THIS CLASS, SUBCLASS:
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15.19 | ... Fluid actuated or retarded: |
This subclass is indented under subclass 15.18. Subject matter wherein the significance is attributed
to the opening or closing movement of the valve and is produced
by the relative force of a gas, liquid, or a mixture of a solid and
liquid.
Figure 1: A typical example of the subject matter. A - Controlvalve; B - Valve stem; C, D, E, F - Lever and link mechanism; G- Piston; H - Servomechanism; J - Actuator; K - Manifold to controlactuator. SEE OR SEARCH THIS CLASS, SUBCLASS:
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15.21 | ... Multi way valve: |
This subclass is indented under subclass 15.18. Subject matter wherein the valve regulates or controls
a plurality of flow lines.
Figure 1: A typical example of the subject matter. A - Valvebody; B - Valve cage; C - Valve plug; D - Valve stem; E - Bonnet;F, G - Valve ports; H - Central boss; J - Valve body bridge; K,L - Side ports; M - Bottom port. SEE OR SEARCH THIS CLASS, SUBCLASS:
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15.22 | ... Ball valve or rotary ball valve: |
This subclass is indented under subclass 15.18. Subject matter wherein the significance is attributed
to a valve comprising a recriprocating spherical element, a pivoting
spherical element, or a housing having a flow passage therethrough
with a valve seat, and a spherical head that contacts the seat and
can be rotated about an axis passing generally through its geometrical
center by actuating means.
Figure 1: A typical example of the subject matter. A - Valveseat; B - Upper valve seat; C - Lower valve seat; D - Packings;E, F - Retainers; G, H -Bearing packings; J - Valve box; K - Valverod; L - Packing gland; M - Gland screw; N - Ball handle; P - Capnut; Q - Lock nut; R, S, T - Fluid passages. SEE OR SEARCH THIS CLASS, SUBCLASS:
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15.23 | ... Gate valve: |
This subclass is indented under subclass 15.18. Subject matter wherein the significance is attributed
to a valve comprising essentially a wedge-shaped or flat sliding
plate that can be lowered into a seat or raised to regulate fluid flow.
Figure 1: A typical example of the subject matter. A - Gatevalve; B - Valve body; C - Passageway; D -Valve gate; E - Valveseats; F - Valve stem; G - Valve yoke; H - Valve handle. SEE OR SEARCH THIS CLASS, SUBCLASS:
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15.24 | ... Plug valve: |
This subclass is indented under subclass 15.18. Subject matter wherein the significance is attributed
to a valve comprising a cock with a conical or cylindrical piece
which is being turned to regulate the flow.
Figure 1: A typical example of the subject matter. A - Valveassembly; B, C - Inlet and outlet in axial alignment with each other;D - Cylindrical plug assembly with valve assembly "A"; E - Upperactuating portion of plug "D"; F - Lower actuating portion of plug"D"; G, H - Sealing grooves for plug "D"; J - Plug valve handle;K - Valve support surface. SEE OR SEARCH THIS CLASS, SUBCLASS:
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15.25 | ... Butterfly valve: |
This subclass is indented under subclass 15.18. Subject matter wherein significance is attributed to a
valve comprising a substantially flat and coplaner wings depending
from a central axis of rotation.
Figure 1: A typical example of the subject matter. A - Throttlevalve shaft; B - Cylindrical bosses; C - Throttle valve disk; D- Spring retainer and lever; E - Holes to receive bosses "B". SEE OR SEARCH THIS CLASS, SUBCLASS:
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15.26 | ... Float valve: |
This subclass is indented under subclass 15.18. Subject matter wherein the significance is attributed
to a valve comprising a hollow, buoyant element, usually attached
at the end of a lever, providing positive buoyancy while resting
on the fluid surface.
Figure 1: A typical example of the subject matter. A - Tank;B - Water level; C - Standpipe; D - Ballcock valve; E - Lever arm;F - Float; G - Port; H - Fill tube. Note: Valve "D" operates suchthat downward articulation of lever arm "E" causes valve "D" toopen so that water can communicate between port "G" and the fill tube"H". SEE OR SEARCH THIS CLASS, SUBCLASS:
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15.1 | HIGHSPEED FLUID INTAKE MEANS (E.G., JET ENGINE INTAKE): |
This subclass is indented under the class definition. Apparatus comprising intake means described for use in an
ambient gaseous medium to gather a portion of that medium, said
incoming medium moving at a relatively high speed with respect to
the intake means, said intake means comprising a flow passage for
the incoming medium, said flow passage disclosed as having at least
(1), a portion which converges in the direction of flow or (2),
a portion which diverges in the direction of flow or (3), an enlarged
portion downstream of the intake end.
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15.2 | . With condition responsive control means: |
This subclass is indented under subclass 15.1. Apparatus having means sensing a condition of the ambient
medium, or of the medium flowing through the intake means, said
sensing means controlling operation of a control means for the medium
flowing through the intake means, or for a separate fluid.
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38 | CONTROL BY CHANGE OF POSITION OR INERTIA OF SYSTEM: |
This subclass is indented under the class definition. Apparatus wherein a flow of fluid is controlled in response
to (1) the shifting of the position of the system as a whole relative
to gravitational field or to a body of liquid in which the system
exists or (2) the inertia or dislocation of the system as a whole.
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39 | . With second control: |
This subclass is indented under subclass 38. Apparatus which includes, in addition to the control responsive
to the position or inertia of the system as a whole, a second means
for operating the control means.
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40 | . Position relative body of water (e.g., marine governors): |
This subclass is indented under subclass 38. Apparatus wherein the flow is controlled in response to
the position of the system as a whole relative to a body of water
in which the system is located.
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41 | .. Float controlled: |
This subclass is indented under subclass 40. Apparatus which includes a float means for sensing the position
of the system relative the body of water in which the system exists.
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42 | .. Pressure or head controlled: |
This subclass is indented under subclass 40. Apparatus which includes means to sense the pressure or
head of the body of water in which the system exists.
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43 | . Vent opening or closing on tipping container: |
This subclass is indented under subclass 38. Apparatus including means to close or open a vent opening
on a container when the position of the container is varied, e.g.,
when the container is tipped.
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44 | . By shifting of liquid level: |
This subclass is indented under subclass 38. Apparatus wherein the control is effected by a change in
a level of a liquid.
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45 | . By pendulum or swinging member: |
This subclass is indented under subclass 38. Apparatus wherein the flow is controlled by means of a pendulum
or other pivoted member swinging about its pivot in response to
a change of position of the system or to the inertia of the system.
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46 | .. With servo connection to valve: |
This subclass is indented under subclass 45. Apparatus in which the pendulum or pivoted member controls
the application of another source of power for operating the control instead
of by acting directly through a mechanical connection.
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47 | SPEED RESPONSIVE VALVE CONTROL: |
This subclass is indented under the class definition. Systems including the combination of a valve or valves and
an actuator therefor, the actuator including a driven means which changes
its position or produces a regulating pressure which varies in accordance
with the speed at which it is driven.
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48 | . Acceleration responsive valve control: |
This subclass is indented under subclass 47. Control systems wherein the driven means changes its position in accordance with the rate of change of speed at which it is driven. | |
49 | . With manual valve control: |
This subclass is indented under subclass 47. Control systems including additional means whereby the valve
or valves may be manually operated.
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50 | . Speed change and excess speed valve control: |
This subclass is indented under subclass 47. Control systems wherein the driven means is operable to
vary the extent of opening of the valve or valves in response to
changes in speed and to effect closing of the valve or valves in response
to a speed above a predetermined speed.
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51 | . With other condition responsive valve control: |
This subclass is indented under subclass 47. Control systems including additional means responsive to
another operating condition which may actuate the same valve which
is actuated by the speed responsive means, or another valve.
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52 | .. Governor drive failure responsive: |
This subclass is indented under subclass 51. Control systems wherein the additional condition responsive
means comprises a control device responsive to the breaking or failure
of the driving means for the speed responsive governor to effect
closing or substantial closing of a valve.
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53 | . Centrifugal mass type (exclusive of liquid): |
This subclass is indented under subclass 47. Control systems wherein the speed responsive means comprises
a rotating or revolving weight or weights, the position assumed
by such weight or weights due to centrifugal force varying as a
function of the speed at which they are rotated or revolved.
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54 | .. With multiple valves: |
This subclass is indented under subclass 53. Control systems wherein two or more valves are provided,
at least one of said valves being actuated by the speed responsive
means.
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55 | .. Periodically actuated valve: |
This subclass is indented under subclass 53. Control systems wherein the valves or valve are periodically
and continually opened and closed, the governor being effective
to vary the period and/or the extent of opening.
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56 | .. Rotating valve and rotating governor: |
This subclass is indented under subclass 53. Control systems wherein the speed responsive means and the
valve or valves are combined to comprise a continuously rotating
construction.
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57 | .. Excess speed responsive: |
This subclass is indented under subclass 53. Control systems wherein the speed responsive means is effective
to actuate the valve or valves only at speeds above a predetermined
speed.
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58 | .. With fluid servo-motor: |
This subclass is indented under subclass 53. Control systems wherein the speed responsive means transmits
its regulating motion to the valve or valves by means of a fluid
type servo-motor mechanism.
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59 | FREEZE CONDITION RESPONSIVE SAFETY SYSTEMS: |
This subclass is indented under the class definition. Apparatus which includes means which senses the existence
of conditions which would cause the freezing of liquid within the
system and in response thereto exercises a control to protect the
liquid from freezing or to safeguard the system as a whole from
the effects of freezing of a part thereof.
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60 | . With freeze waste: |
This subclass is indented under subclass 59. Apparatus which includes means to protect the liquid from
freezing by responding to the freezing of the liquid in a chamber.
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61 | . Stop and waste: |
This subclass is indented under subclass 59. Apparatus which closes the system to liquid flow and opens
a waste outlet so that at least part of the liquid in the system
is drained or wasted in response to the sensing of low temperature
or freezing conditions.
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62 | . Low temperature responsive drains: |
This subclass is indented under subclass 59. Apparatus which operates to open an outlet so that at least
part of the system is drained or emptied of liquid in response to
the sensing of low temperature or freezing conditions.
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65 | COMBUSTION FAILURE RESPONSIVE FUEL SAFETY CUT-OFF FOR BURNERS: |
This subclass is indented under the class definition. Subject matter comprising a flow control device or safety
valve in the fuel supply to a burner which is automatically actuated
to discontinue the fuel flow in response to the extinguishment of
the main or pilot burner.
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66 | . Thermo-electric: |
This subclass is indented under subclass 65. Control systems wherein the safety valve is retained in
its set or open position under the action of a solenoid, which solenoid
is energized by the electric current generated by a thermoelectric
element, e.g., a thermocouple, subject to the heat of the pilot
burner or main burner.
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67 | DESTRUCTIBLE OR DEFORMABLE ELEMENT CONTROLLED: |
This subclass is indented under the class definition. Subject matter in which the flow of fluid is controlled
in response to the destruction, fusion or permanent deformation
of an element or body.
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68.11 | . Destructible element: |
This subclass is indented under subclass 67. Subject matter in which the fluid flow control element is
physically broken by having a force acting directly upon it.
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68.12 | .. Combined destructible and fusible element: |
This subclass is indented under subclass 68.11. Subject matter in which the element breaks and melts at a specific temperature to control the fluid flow or has, in addition to the destructible element, a separate element which melts at a specific temperature to control the fluid flow. | |
68.13 | .. Explosive actuation: |
This subclass is indented under subclass 68.11. Subject matter which includes means capable of detonation for creating a force for breaking or deforming the destructible element (e.g., an explosive element moves a plunger or creates a pressure surge to break the element). | |
68.14 | .. Separable valve coupling or conduit: |
This subclass is indented under subclass 68.11. Subject matter where the destructible element is a fluid-conveying assembly such as a nipple, valve assembly, or hose that disconnects at a specific joint when an excessive force is applied to it. | |
68.15 | ... Tensile or sheer pin or bolt: |
This subclass is indented under subclass 68.14. Subject matter where the destructible element is a pin or bolt that holds the coupling together and destructs when a perpendicular or axial excessive force is applied to the coupling. | |
68.16 | .. Tensile or sheer pin or bolt: |
This subclass is indented under subclass 68.11. Subject matter where the destructible element is a pin or bolt that destructs when an excessive force is applied. | |
68.17 | ... Pressure causes pin or bolt to destruct: |
This subclass is indented under subclass 68.16. Subject matter that destructs when the applied excessive force that fractures the pin or bolt is applied over the surface of the pin or bolt. | |
68.18 | .. With alarm or indicator: |
This subclass is indented under subclass 68.11. Subject matter that includes a sensing means that sends a signal when the element breaks. | |
68.19 | .. Rupture disc: |
This subclass is indented under subclass 68.11. Subject matter where the destructible element is a diaphragm
or seal that holds fluid.
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68.21 | ... Means for holding entire disc after rupture: |
This subclass is indented under subclass 68.19. Subject matter that has a specific means for preventing the rupture disc from tearing away (e.g., hinge-reinforcing member). | |
68.22 | ... Disc burst after destruction of additional element: |
This subclass is indented under subclass 68.19. Subject matter that includes a second frangible element
in a system which destructs before the rupture disc.
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68.23 | ... Direct pressure causes disc to burst: |
This subclass is indented under subclass 68.19. Subject matter wherein the destructible element is destroyed by excessive pressure exerted by the fluid flow. | |
68.24 | .... Two-way rupture disc: |
This subclass is indented under subclass 68.23. Subject matter that is designed to break either in the direction of or opposite the direction of the fluid flow when an excessive pressure differential exists. | |
68.25 | .... Dome shape: |
This subclass is indented under subclass 68.23. Subject matter that is specifically designed to be hemispherical to enable the disc to more easily rupture as pressure builds. | |
68.26 | ..... Reverse buckling: |
This subclass is indented under subclass 68.25. Subject matter which has excessive pressure at the convex side of the disc to cause the disc to reverse its concavity and burst. | |
68.27 | ... Specific weakening point: |
This subclass is indented under subclass 68.19. Subject matter specially modified to have an area of varied thickness creating a vulnerable section to enable the pressure disc to more easily break. | |
68.28 | ... Integral disc assembly: |
This subclass is indented under subclass 68.19. Subject matter including a support member welded or bonded with adhesive to the rupture disc or the rupture disc is directly bonded or welded to the assembly. | |
68.29 | ... Knife or cutter causes disc to break: |
This subclass is indented under subclass 68.19. Subject matter penetrated by a piercing device to enable the disc to more easily break when the internal pressure in the system becomes excessive. | |
68.3 | .... Movable knife or cutter: |
This subclass is indented under subclass 68.29. Subject matter wherein the piercing device is positionable. | |
69 | .. With counterbalancing element: |
This subclass is indented under subclass 68.12. Apparatus which includes means for applying a force or bias to the frangible means in a direction opposing the force (usually fluid pressure) which tends to break the frangible element. | |
70 | .. Frangible element returns pressure responsive valve: |
This subclass is indented under subclass 68.12. Apparatus in which a valve which opens in response to increased
pressure is retained in closed position by means of a frangible
element, opening of the valve resulting from the breaking of the
frangible element.
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71 | .. Having pressure responsive valve: |
This subclass is indented under subclass 68.12. Apparatus including a pressure responsive valve controlling
the fluid flow in response to the pressure thereof in addition to
the control in response to the breaking of the frangible element.
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72 | . Heat destructible or fusible: |
This subclass is indented under subclass 67. Apparatus in which the flow is controlled in response to
an element which is fusible or destructible by heat (e.g., combustible).
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73 | .. With second sensing means: |
This subclass is indented under subclass 72. Apparatus which includes a means for controlling the fluid
flow in response to a change in condition in addition to the control
in response to the fusion or destruction of the heat destructible
element.
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74 | .. In fluid flow path: |
This subclass is indented under subclass 72. Apparatus in which the fusible or heat destructible element
is in the passage carrying the flow controlled and functions as
a barrier or stop member for such flow.
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75 | .. Safety cut-off: |
This subclass is indented under subclass 72. Apparatus in which the valve controlling the fluid flow
is biased toward a closed position but is held open by a restraining
means, the fusion or destruction of the heat destructible or fusible
means causing a release of the restraining means.
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76 | ... With heater for destructible or fusible element: |
This subclass is indented under subclass 75. Apparatus which includes a heating means for the fusible
or heat destructible element.
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77 | ... With external closing means: |
This subclass is indented under subclass 75. Apparatus including a means for closing the valve by manual
or external means in addition to the operation in response to the
fusible or heat destructible element.
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78.1 | AMBIENT CONDITION CHANGE RESPONSIVE: |
This subclass is indented under the class definition. Apparatus which controls a flow of a fluid in response to
a variation in a condition of, or in the surrounding environment.
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78.2 | . For controlling soil irrigation: |
This subclass is indented under subclass 78.1. Apparatus in which flow of water to the ground is controlled by means responsive to an environmental condition. | |
78.3 | .. Coil moisture sensing: |
This subclass is indented under subclass 78.2. Apparatus in which flow of water to the ground is controlled in response to a change in moisture content of the ground. | |
78.4 | . Burner gas cutoff: |
This subclass is indented under subclass 78.1. Apparatus in which flow of flammable gas to a burner is stopped in response to a sensed environmental extinguishing action to the flame of the burner. | |
78.5 | . Atmospheric: |
This subclass is indented under subclass 78.1. Apparatus in which control of a flow of fluid is responsive to a variation in a condition of, or in surrounding atmosphere. | |
79 | .. Temperature: |
This subclass is indented under subclass 78.5. Apparatus which controls a fluid flow in response to variations
of temperature in the surrounding atmosphere.
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80 | ... With additional diverse control: |
This subclass is indented under subclass 79. Apparatus which also includes, in addition to the atmosphere
temperature responsive element, an additional means for operating
the control means.
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81.1 | .. Pressure: |
This subclass is indented under subclass 78.5. Apparatus in which a fluid flow is controlled in response
to variations of atmospheric pressure.
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81.2 | . Underwater: |
This subclass is indented under subclass 78.1. Apparatus in which control of a flow of fluid is responsive to a variation in a condition of, or in an environment beneath the surface of a body of water. | |
803 | FLOW AFFECTED BY FLUID CONTACT, ENERGY FIELD OR COANDA EFFECT (E.G., PURE FLUID DEVICE OR SYSTEM): |
This subclass is indented under the class definition. Subject matter wherein movement of a stream of fluid is
controlled by one or more devices, at least one of the devices having
the following characteristics:(A) the stream is caused to flow into
the device through a passage or along a path of flow, or the stream
is caused to flow in a predetermined condition or amount of flow
into the device; (B) the stream is caused to flow out of the device
through a passage or along a path of flow, and the stream is diverted
to flow out of the device through a different passage or along a
different path of flow, or the stream is caused to flow in an altered
condition or amount of flow out of the device; (C) the diversion
of alteration (referred to in (B) above) is caused by one or more
of the following,(1) direct contact of at least one other stream
of fluid with the inflow stream, or (2) application of an energy
field directly to the inflow stream, or (3) application of the Coanda effect.
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GLOSSARY |
CONTROL INPUT | |
Stream or energy field, referred to in the subclass definition, (C) (1) and (C) (2) above, that causes the diversion or alteration of the output stream. |
PASSAGE | |
Channel or duct that surrounds and guides a stream of fluid or energy in a desired path or direction. |
POWER INPUT | |
Stream, referred to in the subclass definition, (A), above, that flows into the devices. |
POWER OUTPUT | |
Stream, referred to in in the subclass definition, (B), above, that flows out of the device; | |
804 | . Responsive to condition external of system: |
This subclass is indented under subclass 803. Device or system which senses or detects or which is provided
with additional means to sense or detect, a characteristic or state
of the environment outside of said device or system, and which generates
a signal or impulse as a result of such sensing or detecting.
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805 | .. And causing change or correction of sensed condition: |
This subclass is indented under subclass 804. Device or system wherein the signal or impulse activates said device or system or activates another mechanism for the purpose of varying the characteristic or state of the environment or for the purpose of restoring the characteristic or state of the environment to that which is desired. | |
806 | . Utilizing diverse fluids: |
This subclass is indented under subclass 803. Device or system involving the use therein of two or more
different fluids or of fluids having different characteristics.
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807 | . Utilizing particular fluid: |
This subclass is indented under subclass 803. Device or system involving the use therein of a specific
fluid or a fluid having specific characteristics.
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808 | . Means to cause rotational flow of fluid (e.g., vortex generator): |
This subclass is indented under subclass 803. Device or system provided with means to compel any of the
streams of fluid to turn about an axis in a generally circular (i.e., "vortex")
path.
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809 | .. Plural vortex generators: |
This subclass is indented under subclass 808. Device or system provided with two or more of said means
for a corresponding number of streams.
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810 | .. Vortex generator as control for system: |
This subclass is indented under subclass 808. Device or system wherein said means is a subcombinational
element in an array of fluidic devices forming a fluidic system,
and said means regulates the inflow or outflow of fluid to or from
said array.
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811 | .. Vortex generator in interaction chamber of device: |
This subclass is indented under subclass 808. Device wherein said means is part of the common zone referred
to in the definition of subclass 834 or subclass 841.
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812 | .. By tangential input to axial output (e.g., vortex amplifier): |
This subclass is indented under subclass 808. Device wherein the flow of fluid into the device is along
a straight line that is substantially perpendicular to a radius
line from said axis, and the flow of fluid out of the device is along
said axis.
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813 | ... With means to vary input or output of device: |
This subclass is indented under subclass 812. Device provided with means to alter the flow of any of the
streams of fluid into or out of the device.
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814 | . System comprising plural fluidic devices or stages: |
This subclass is indented under subclass 803. Subject matter provided with two or more devices of the
type defined there, or provided with a housing having therein two
or more groups of passages for fluid flow, each of which groups
acts as a fluidic device.
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815 | .. Plural power inputs (e.g., parallel inputs): |
This subclass is indented under subclass 814. System provided with two or more passages for a corresponding
number of streams of power input fluid, each said passage leading
to its own device.
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816 | ... Variable or different-value power inputs: |
This subclass is indented under subclass 815. System wherein at least one of the streams of power input
fluid can be regulated or altered relative to another, or wherein
at least one of the streams is unequal to another.
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817 | .... Pulsating power input and continuous-flow power input: |
This subclass is indented under subclass 816. System wherein at least one of the streams of power input fluid is in the form of a series of short bursts of fluid timed in a predetermined sequence or duration, and at least another of the streams is an uninterrupted stream of power input fluid, the two different streams being applied simultaneously to the system. | |
818 | ... With variable or selectable source of control-input signal: |
This subclass is indented under subclass 815. System provided with a supply of control input fluid for
at least one of said devices, which supply can be regulated or altered,
or wherein the supply that is used for control purposes can be chosen
from a plurality of supplies available.
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819 | ... To cascaded plural devices: |
This subclass is indented under subclass 815. System provided with two or more fluidic devices arranged
in a series array, and also provided with a connection from a power
output passage of a first of said devices to a control input passage
of a second of said devices that is downstream of said first device.
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820 | .... With feedback passage(s) between devices of cascade: |
This subclass is indented under subclass 819. System further provided with a connection from a power output
passage of said second (i.e., downstream) device to a control input passage
of said first device, whereby at least a portion of the power output
fluid of the second device will affect the control input of the
first device.
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821 | .... With pulsed control-input signal: |
This subclass is indented under subclass 819. System wherein at least one of the fluidic devices has control
input that is in the form of a series of short bursts of fluid timed
in a predetermined sequence or duration.
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822 | . Plural power inputs to single device: |
This subclass is indented under subclass 803. Device provided with only one (as claimed in the patent
thereto) fluidic device, and further provided with two or more passages
each supplying a stream of power input fluid to that device.
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823 | .. Intersecting at interaction region (e.g., comparator): |
This subclass is indented under subclass 822. Device wherein each said passage lies along a separate line,
and said lines converge at a zone common to all the lines, and the
streams are directed toward said common zone.
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824 | ... Co-lineal, oppositely-directed power inputs (e.g., impact modulator): |
This subclass is indented under subclass 823. Device wherein said separate lines merge into a single line
common to both said passages, and said streams impinge against one
another coaxially in said common zone.
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825 | . Means to regulate or vary operation of device: |
This subclass is indented under subclass 803. Device provided with means that is additional to the fluidic
device, which means causes a change in the output stream of the
device.
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826 | .. To vary frequency of pulses or oscillations: |
This subclass is indented under subclass 825. Device wherein the output stream of the device is in the form of a succession of bursts of fluid issuing from a single outlet or issuing alternatively from two or more outlets, and wherein the change that is produced is a change in the time interval of or between said bursts of fluid. | |
827 | .. By non-fluid energy field affecting input (e.g., transducer): |
This subclass is indented under subclass 825. Device wherein said means causes the generation of force
other than the force of a stream of fluid, said force causing a
change in the output stream.
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828 | ... Acoustical or thermal energy: |
This subclass is indented under subclass 827. Device wherein the force comprises sound waves or heat waves.
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829 | .. By movable element: |
This subclass is indented under subclass 825. Device wherein said means is a member that can move relative
to the passages provided for flow of fluid.
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830 | ... Operating at timed intervals (e.g., to produce pulses): |
This subclass is indented under subclass 829. Device wherein the movement of said member occurs at a particular frequency to cause a succession of bursts of fluid to be emitted. | |
831 | ... Electrically-actuated element (e.g., electro-mechanical transducer): |
This subclass is indented under subclass 829. Device wherein the movement of the member is caused by electrical
energy.
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832 | ... Means (e.g., valve) in control input: |
This subclass is indented under subclass 829. Device wherein said member is a means located in or adjacent
to the control input passage that supplies fluid for diverting the
power input stream (referred to in definition of subclass 803).
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833 | . Structure of body of device: |
This subclass is indented under subclass 803. Device wherein the device is provided with a housing having
passages therein for guiding the flow of fluid from input to output
and wherein the claimed disclosure of the patent pertains to the
manufactured elements that comprise the device or the manner in
which the elements are assembled to form the device.
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834 | . Device including passages having V over T configuration: |
This subclass is indented under subclass 803. Device provided with at least five passages joined at a
zone common to all the passages, including a first passage permitting
entry into said common zone of a power input stream of fluid, a
second passage and a third passage permitting entry into said common
zone of control input signals (i.e., stream of fluid or energy field),
said second and third passages being substantially opposed to one
another and substantially perpendicular to said first passage and
the three passages thus forming approximately a letter "T";
and also including a fourth passage and a fifth passage permitting
exit from said common zone of power output fluid, said fourth and
fifth passages diverging substantially oppositely away from said
first passage and said common zone and thus forming approximately
a letter "V"; the overall arrangement of passages
thus forming a "V" joined to a "T" at
the common juncture of zone.
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835 | .. And feedback passage(s) or path(s): |
This subclass is indented under subclass 834. Device further provided with means permitting at least a
portion of the fluid exiting from said common zone via said fourth
or fifth passage to be diverted from its exit passage and returned to
said common zone.
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836 | .. With particular characteristics of control input: |
This subclass is indented under subclass 834. Device wherein said second and third passages have special
structure or configuration or peculiarity of operation.
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837 | ... Multiple control-input passages: |
This subclass is indented under subclass 836. Device wherein the special structure includes a plurality of second passages or a plurality of third passages, the number of passages permitting control-input signal to enter the common zone thus being three or more. | |
838 | .. And multiple or joined power-outlet passages: |
This subclass is indented under subclass 834. Device provided with a plurality of fourth passages or a
plurality of fifth passages, the number of passages diverging away
from said common zone permitting fluid to exit from said zone being
three or more, or provided with fourth and fifth passages that come
to a second common zone downstream of the first common zone.
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839 | .. And enlarged interaction chamber: |
This subclass is indented under subclass 834. Device wherein said common zone is greater in size than
would normally be required for passage of fluid therethrough, or
wherein the walls forming the common zone are particularly disclosed
as having a specified configuration.
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840 | .. And vent passage(s): |
This subclass is indented under subclass 834. Device further provided with a sixth passage joining any of said other passages or said common zone to ambient surroundings for the purpose of "bleeding" excess pressure within the device. | |
841 | . Device including passages having V over gamma configuration: |
This subclass is indented under subclass 803. Device provided with at least four passages joined at a
zone common to all the passages, including a first passage permitting
entry into said common zone of a power input stream of fluid and
a second passage permitting entry into said common zone of control
input signals (i.e., stream of fluid or energy field), said first and
second passages being angularly related and thus forming approximately
ar (Greek letter "Gamma") or an inverted letter "L";
and also including a third passage and a fourth passage permitting
exit from said common zone of power outlet fluid, said third and
fourth passages diverging substantially oppositely away from said
first passage and said common zone and thus forming approximately
a letter "V"; the overall arrangement of passages
thus forming a "V" joined to ar at the common
juncture or zone.
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842 | . Device including linearly-aligned power stream emitter and power stream collector: |
This subclass is indented under subclass 803. Device provided with at least two passages joined at a zone
common to both passages, including a first passage permitting entry
into said common zone of a power input stream of fluid and a second
passage permitting exit from said common zone of a power output
stream of fluid, said passages each extending along a line common
to both passages.
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82 | PRESSURE MODULATING RELAYS OR FOLLOWERS: |
This subclass is indented under the class definition. Apparatus which continuously varies or modulates a fluid
in response to a varying control condition. The modulation is usually accompanied
by varying a pressure bleed.
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83 | . Jet control type: |
This subclass is indented under subclass 82. Apparatus which utilize a fluid jet and one or more jet
receiving orifices with the control condition varying the pressure
in the orifices by varying the amount of jet fluid entering the orifices.
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84 | . Plural series units: |
This subclass is indented under subclass 82. Apparatus wherein a plurality of modulating relays on followers are connected in series; the output pressure of one controlling the modulation in the next. | |
85 | . With counter-balancing pressure feedback to the modulating device: |
This subclass is indented under subclass 82. Apparatus in which the modulated pressure is utilized in a feedback arrangement to counterbalance the modulating control element. | |
86 | .. With counter-counter balancing pressure feedback: |
This subclass is indented under subclass 85. Apparatus in which the modulated pressure is utilized in a second feedback arrangement to counterbalance the counterbalance of the modulating control element. | |
87.01 | SELF-PROPORTIONING OR CORRELATING SYSTEMS: |
This subclass is indented under the class definition. Subject matter wherein a fluid flow in a first flow line
is proportioned or correlated with the fluid flow in a second fluid
flow line by a movable means, which is positioned in one of the
fluid flow lines and controlling the fluid flow in the other fluid
flow line in response to a sensor detecting a variable condition
or characteristic of the fluid in the other fluid flow line.
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88 | . Mixture condition maintaining or sensing: |
This subclass is indented under subclass 87.01. Systems in which a condition of a fluid mixture is maintained
by controlling the flow of at least one of the fluids mixed in response
to a means which sense the condition of the mixture.
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89 | .. Dividing and recombining flow: |
This subclass is indented under subclass 88. Systems in which a fluid flow is divided into a plurality
of flow paths which are subsequently recombined, the ratio of the
flows thus divided and recombined being controlled in response to a
means sensing a condition to be maintained.
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91 | .. By specific gravity: |
This subclass is indented under subclass 88. Systems in which the condition maintained or sensed is specific
gravity.
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92 | .. By viscosity or consistency: |
This subclass is indented under subclass 88. Systems in which the condition maintained or sensed is viscosity
or consistency.
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93 | .. By optical or chemical property: |
This subclass is indented under subclass 88. Systems in which the condition maintained or sensed is an
optical or chemical property.
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94 | . Fuel controlled by boiler or water system condition: |
This subclass is indented under subclass 87.01. Subject matter in which a condition of the fluid in a boiler
or water heating system controls the flow of fuel used for heating
the boiler or water.
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98 | . Self-proportioning flow systems: |
This subclass is indented under subclass 87.01. Systems in which the control means maintains a predetermined
ratio between flows in a plurality of flow lines.
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99 | .. Interconnected flow displacement elements: |
This subclass is indented under subclass 98. Systems in which the proportioning or correlating means
includes mechanically interconnected flow displacement elements.
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99.5 | ... Movable trap chamber: |
This subclass is indented under subclass 99. Subject matter wherein the flow displacement element comprises
a bodily movable measuring chamber which provides continuous flow with
increment feeding.
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100 | .. Flow comparison or differential response: |
This subclass is indented under subclass 98. Systems in which the sensing means is sensitive to the differences
between the rates of flow or pressure difference along the line
in a plurality of flow lines or at spaced points along one line.
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101 | ... Flow dividers (e.g., reversely acting controls): |
This subclass is indented under subclass 100. Systems in which a flow is divided into a plurality of flow
paths and the ratio between the flow in each branch maintained in
response to means sensing differences in flow or pressure in each
branch by throttling one branch an amount equal to the amount the
other branch is opened.
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101.11 | ... Main line flow displaces or entrains material from reservoir: |
This subclass is indented under subclass 100. Subject matter wherein a shunt line having a reservoir therein relies on the pressure difference between its connection to the main line to cause flow therethrough to entrain material in the reservoir, or to displace the reservoir material or an intermediate distinct fluid layer or expansible chamber device whereby the reservoir material is forced into the main line without mixing with the flow while in the shunt. | |
101.19 | ... With electrical controller: |
This subclass is indented under subclass 100. Subject matter comprising an electrical controller responsive
to the sensing means.
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101.21 | .. Flow displacement element actuates electrical controller: |
This subclass is indented under subclass 98. Subject matter comprising an electrical controller responsive to a flow displacement element. | |
101.25 | .. Liquid level response: |
This subclass is indented under subclass 98. Subject matter comprising at least one means which senses
the level of a liquid in means to receive an accumulation thereof
and in response thereto exercises a control of the flow in one or
more of the flow lines.
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101.27 | ... Float controlled weir or valve: |
This subclass is indented under subclass 101.25. Subject matter wherein a weir or valve is responsive to the level sensing means. | |
101.29 | ... Swinging outlet pipe controller: |
This subclass is indented under subclass 101.25. Subject matter wherein a swinging outlet pipe controls the
flow from an accumulator or tank responsive to the level sensing means.
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101.31 | .. With measuring type discharge assistant: |
This subclass is indented under subclass 98. Subject matter comprising a measuring type discharge assistant
in one flow line responsive to a flow displacement element in another
flow line or by the weight of accumulated fluid of a proportionate
part of the flow in another line to provide continuous flow through
the system with increment feeding.
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102 | . Supply and exhaust type: |
This subclass is indented under subclass 87.01. Systems in which an outlet or receiver alternatively receives
a fluid from a source of supply and drains the fluid to an exhaust,
the flow of fluid from the supply or to the exhaust, being controlled
in response to a means sensing a change in condition.
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103 | .. Vacuum or suction pulsator type (e.g., milking machine): |
This subclass is indented under subclass 102. Systems in which an outlet or receiver is alternately connected
to a source of suction or vacuum and a source of fluid under pressure
or vent (usually the atmosphere).
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104 | ... With trip linkage or snap action: |
This subclass is indented under subclass 103. Apparatus which include a snap acting or trip linkage in
the control system.
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105 | ... With pulsation responsive pilot valve: |
This subclass is indented under subclass 103. Apparatus wherein the flow controlling valve is moved by
a fluid servo under control of a second valve which is itself fluid
operated under control of the first valve, there being no mechanical
linkage between the two valves.
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106 | .. Reversing or 4-way valve systems: |
This subclass is indented under subclass 102. Systems which include two outlets or receivers, one outlet
or receiver being connected to the supply while the other is connected
to the exhaust, the connections being reversed or changed in response
to a means sensing a change in condition.
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107 | .. Waste responsive to flow stoppage: |
This subclass is indented under subclass 102. Systems wherein a waste or drain is opened in response to
the stopping of the fluid flow from the supply to the outlet or
receiver.
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109 | . Self-controlled branched flow systems: |
This subclass is indented under subclass 87.01. Systems in which a single flow is divided into a plurality
of flow paths or a plurality of flow paths are combined into a single
flow path or in which a single flow path is divided and then recombined,
and in which the flow in one branch or line is controlled in response
to a change in a condition in another branch or line.
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110 | .. Dividing and recombining: |
This subclass is indented under subclass 109. Systems in which a single flow path is divided into a plurality
of branch flow paths which are in turn recombined into a single
flow path and in which at least one branch flow path is controlled
in response to a sensing means which is at least partially affected
by a condition in another branch flow path.
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111 | .. Plural inflows: |
This subclass is indented under subclass 109. Systems in which a plurality of flows from separate sources
are joined, or are provided with a common outflow, and in which
at least one flow path is controlled in response to a sensed condition
change.
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112 | ... Alternate or successive inflows: |
This subclass is indented under subclass 111. Systems in which flow in one inlet is alternated with the flow in a second inlet or is substituted therefor in response to a sensing of a changed condition. | |
113 | .... Control by depletion of source: |
This subclass is indented under subclass 112. Systems in which the control is in response to a failure
or depletion of the source of the flow in one of the inflow.
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114 | ... One inflow supplements another: |
This subclass is indented under subclass 111. Systems in which one inflow is added to or supplements the
second flow and is in response to a sensed condition change such
as reduction in pressure or flow in the second inflow or in the
combined flow or in the level of accumulated fluid derived from
the second or combined flow.
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115.01 | .. Bypass or relief controlled by main line fluid condition: |
This subclass is indented under subclass 109. Subject matter including a flow line with an inlet and outlet
for a main flow and an outlet branch or bypass in which the flow
is controlled in response to a variation in the fluid condition
(e.g., fluid level, flow rate or pressure, or the like) in the main
flow line detected by a sensor.
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115.02 | ... Liquid level responsive: |
This subclass is indented under subclass 115.01. Subject matter wherein the sensor is detecting the variation
in the levels of the liquid in the main line and in response thereto
the sensor controls the flow in the bypass or relief.
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115.03 | ... Flow rate responsive: |
This subclass is indented under subclass 115.01. Subject matter wherein the sensor is detecting the variation
in the quantity of the fluid flowing in the main flow line in a
set period of time and in response thereto the sensor controls the
flow in the bypass or relief.
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115.04 | .... Including controlling main line flow: |
This subclass is indented under subclass 115.03. Subject matter wherein the sensor is regulating the flow
in the main line in response to the variation in the flow rate.
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115.05 | ..... Relief or bypass closes as main opens: |
This subclass is indented under subclass 115.04. Subject matter wherein the sensor, in response to the change in the flow rate, is simultaneously opening a main line valve and closing a relief valve in a branch line or vice versa. | |
115.06 | .... Bypass or relief valve biased open: |
This subclass is indented under subclass 115.03. Subject matter comprising a valve means for permitting the
flow to the bypass or relief valve is held open in absence of the
flow by a flexibly adjustable device (e.g., a weight of the valve
body itself, or a spring or such similar flexible means).
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115.07 | .... Pilot valve operated: |
This subclass is indented under subclass 115.03. Subject matter comprising an auxiliary valve control and
wherein the bypass or relief valve is controlled by the auxiliary
control valve in response to the variation of the flow rate in the
main line.
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115.08 | .... Carried choke: |
This subclass is indented under subclass 115.03. Subject matter wherein the sensor is a fluid flow restricting element which is an integral part of the bypass or relief valve and the element is moving with the bypass or relief valve to restrict the flow. | |
115.09 | .... Choke: |
This subclass is indented under subclass 115.03. Subject matter wherein the sensor includes a device for
restricting the flow of the fluid in the main flow line.
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115.1 | ..... Variable choke resistance: |
This subclass is indented under subclass 115.09. Subject matter wherein the choke is adjustable to provide different flow resistances without requiring disassembly of the sensor. | |
115.11 | .... Venturi: |
This subclass is indented under subclass 115.03. Subject matter wherein the sensor includes a device which
is a part of the main flow passage having a cross section of the
part gradually constricted to a throat between two ends of the part
and gradually expanded from the throat to the cross section of the
passage.
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115.12 | .... Flapper: |
This subclass is indented under subclass 115.03. Subject matter wherein the sensor includes a member supported at one end and moving by the momentum of the fluid in the flow line to operate the bypass or relief valve. | |
115.13 | ... Pressure responsive: |
This subclass is indented under subclass 115.01. Subject matter wherein the sensor is detecting the pressure
of the fluid in the main flow line and in response thereto controls
the bypass or relief valve.
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116.3 | .... With pressure reducing inlet valve: |
This subclass is indented under subclass 115. Devices with a correlated fluid pressure responsive regulator
or pressure reducing valve controlling the inlet branch.
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116.5 | ..... Relief port through common sensing means: |
This subclass is indented under subclass 116.3. Devices in which a common sensing means for both inlet control and relief control has a valve controlled outlet or relief passage. | |
115.14 | .... Common sensor for both bypass or relief valve and other branch valve: |
This subclass is indented under subclass 115.13. Subject matter comprising an additional valve in another
flow path and wherein the sensor which controls the bypass or relief valve
also controls the additional valve.
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115.15 | ..... Bypass or relief valve opens as other branch valve closes. |
This subclass is indented under subclass 115.14. Subject matter wherein the sensor opens the bypass or relief valve in the main line while it closes the additional valve in the main line or vice versa. | |
115.16 | .... Bypass or relief valve biased open: |
This subclass is indented under subclass 115.13. Subject matter wherein the bypass or relief passage is held
open in absence of the fluid pressure by a flexibly adjustable device (e.g.,
a weight of the valve body itself, or a spring, or such similar
flexible means).
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115.17 | ..... Increasing pressure progressively closes then reopens bypass or relief valve: |
This subclass is indented under subclass 115.16. Subject matter wherein the increase in the fluid pressure progressively closes the bypass or relief valve and reopens at still higher pressure. | |
115.18 | .... Bypass or relief valve responsive to pressure downstream of outlet valve: |
This subclass is indented under subclass 115.13. Subject matter wherein the outlet branch includes a valve which is located before the bypass or relief valve and the bypass or relief valve is controlled by the fluid pressure between the outlet valve and the bypass or relief valve. | |
115.19 | ..... Pilot valve: |
This subclass is indented under subclass 115.18. Subject matter comprising an auxiliary control valve and
wherein the bypass or relief valve is controlled by the auxiliary
control valve in response to the pressure in the main flow line.
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115.2 | ..... Outlet valve carried by bypass or relief valve: |
This subclass is indented under subclass 115.18. Subject matter wherein the outlet valve is an integral part
of the bypass or relief valve and the outlet valve moves with the bypass
or relief valve.
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115.21 | .... Plural sensors for single bypass or relief valve: |
This subclass is indented under subclass 115.13. Subject matter comprising at least two pressure sensors
for controlling either the bypass or relief valve.
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115.22 | ..... Sensors interconnected by timing or restrictive orifice: |
This subclass is indented under subclass 115.21. Subject matter wherein the pressure sensors are connected
to each other directly by means of a restrictive passage in order
that all the sensors react to the same pressure, but with a different
speed of response.
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115.23 | .... Pilot valve operated: |
This subclass is indented under subclass 115.13. Subject matter comprising an auxiliary control valve and
wherein the bypass or relief valve is controlled by the auxiliary
control valve in response to the pressure in the main flow line.
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115.24 | .... Mechanical movement between sensor and valve: |
This subclass is indented under subclass 115.13. Subject matter wherein the sensor and the bypass or relief valve are so interconnected that the sensor is moving at a different rate and in different direction than the movement of the bypass or relief. | |
115.25 | .... Electrical control: |
This subclass is indented under subclass 115.13. Subject matter comprising an electrical element and wherein the sensor controls the bypass or relief by means of the electrical element. | |
115.26 | .... Sensor rigid with valve: |
This subclass is indented under subclass 115.13. Subject matter wherein the sensor is either (a) assembled as an integral part of the bypass or relief valve, or (b) attached inflexibly to the bypass or relief valve. | |
115.27 | ..... Flexible sensor: |
This subclass is indented under subclass 115.26. Subject matter wherein the sensor is constructed of a thin pliable or resilient material such as used in a diaphragm or bellows or the like. | |
115.28 | ..... Pressure responsive outlet valve: |
This subclass is indented under subclass 115.26. Subject matter comprising a valve on the outlet branch and wherein the valve is responsive to a pressure being sensed in the outlet branch. | |
118.01 | .. Plural outflows: |
This subclass is indented under subclass 109. Subject matter comprising a sensor and wherein the flow
is from a single source and is divided in to a plurality of paths
which the flow may take to separate destinations and the flow is
controlled by the sensor in response to the change in the condition
(e.g., fluid level, flow rate, or pressure, or the like), or a
characteristic of the fluid.
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118.02 | ... Single actuator operates plural outlets simultaneously: |
This subclass is indented under subclass 118.01. Subject matter comprising an outlet valve in each outflow
and wherein the outlet valves are opened or closed at the same time
by only one sensor.
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118.03 | ... Biased open isolation valve: |
This subclass is indented under subclass 118.01. Subject matter comprising an outlet valve in each outflow
and wherein each outlet valve is held open in the absence of a fluid pressure
by a flexibly adjustable device (e.g., a weight of the valve body
itself, or a spring) and at least one valve closes in response to
a sudden pressure drop or flow increase in the outlet line.
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118.04 | ... Flow rate responsive: |
This subclass is indented under subclass 118.01. Subject matter wherein the sensor is detecting a change
in the quantity of the fluid flowing in the main line in a set period
of time and in response thereto controls the outflows.
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118.05 | .... Primer valve: |
This subclass is indented under subclass 118.04. Subject matter wherein the change in the fluid flow rate
in the main line actuates an outlet leading to a liquid trap seal.
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118.06 | ... Pressure responsive: |
This subclass is indented under subclass 118.01. Subject matter wherein the sensor detects a change in the
fluid pressure in the main line and in response thereto controls
the outflows.
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118.07 | .... With external control for correlating valve (e.g., manual): |
This subclass is indented under subclass 118.06. Subject matter wherein, in addition to the pressure responsive
sensor, the outflows are controlled by a device independent of the
condition of the flow line.
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119.01 | ... Alternately or successively substituted outflow: |
This subclass is indented under subclass 118.01. Subject matter wherein (a) the fluid is flowing first through
one outlet and then changed to another outlet, or (b) more than two
outlets are substituted for each other in sequence; in response
to the change in the condition or characteristic of the main line
flow detected by the sensor.
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120 | .... Control by filling auxiliary gravitating or float operating tank: |
This subclass is indented under subclass 119.01. Systems in which the control of the flow is in response
to a filling of a separate or auxiliary tank of the gravitating
or float operating type.
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121 | .... Control by filling outlet tank or receiver: |
This subclass is indented under subclass 119.01. Systems in which the control of the flow is in response
to a filling of a tank or receivers receiving fluid from an outflow
of the system.
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122 | ..... Float controlled: |
This subclass is indented under subclass 121. Systems in which the filling of the tank or receiver is
sensed by means of a float.
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119.02 | .... Four port reversing valve: |
This subclass is indented under subclass 119.01. Subject matter including a four way valve having an inlet
port, an outlet port and two intermediate ports, the valve being
selectively movable into two positions, in one position the inlet
port being connected to the first intermediate port and the second
intermediate port being connected to the outlet port, and in the
other position the inlet port being connected to the second intermediate
port and the first intermediate port being connected to the outlet
port.
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119.03 | .... Responsive to pressure or flow interruption: |
This subclass is indented under subclass 119.01. Subject matter comprising a valve and wherein the alternately or successively substituted outflow is controlled by the valve in response to a break in the pressure of the fluid or a break in the flow of the fluid being detected by the sensor. | |
119.04 | ..... Plural outlets control with automatic reset: |
This subclass is indented under subclass 119.03. Subject matter wherein the valve is regulating more than
one outlet; said valve opens one outlet in response to the pressure
or flow interruption and closes that outlet and opens another outlet
when the pressure or flow is restored.
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119.05 | ..... Manually set to a single outflow position: |
This subclass is indented under subclass 119.03. Subject matter wherein the sensor causes the valve to move from a first position to a second position to open or close one outlet, but the valve is moved back to the first position by an application of a force exerted by a living being. | |
119.06 | .... Flow rate responsive: |
This subclass is indented under subclass 119.01. Subject matter wherein the alternately or successively substituted
outflow is responsive to a change in the amount of fluid flowing in
the flow line in a set period of time being detected by the sensor.
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119.07 | ..... Flow sensing turbine: |
This subclass is indented under subclass 119.06. Subject matter wherein the sensor comprising a member pivoted for oscillation or rotation, and having blades, vanes or surfaces which are exposed to the flow and rotating or tending to rotate the member. | |
119.08 | .... Pressure responsive: |
This subclass is indented under subclass 119.01. Subject matter wherein the change in the condition is a
fluid pressure detected by the sensor for controlling the alternately
or successively substituted outflow of the fluid in the main flow
line.
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119.09 | ..... Responsive to outlet pressure: |
This subclass is indented under subclass 119.08. Subject matter wherein in response to the change in the fluid pressure in the outlet branch the sensor controls the outflow of the fluid. | |
119.1 | .... Electrical control: |
This subclass is indented under subclass 119.01. Subject matter comprising an electrical element and wherein
the sensor controls the outlet by means of the electrical element.
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87.02 | . Liquid level responsive: |
This subclass is indented under subclass 87.01. Subject matter wherein the sensor is detecting the variation
in an uppermost horizontal surface of the liquid in one of the flow
lines and in response thereto the sensor controls the flow in the
other flow line.
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87.03 | . Flow rate responsive: |
This subclass is indented under subclass 87.01. Subject matter wherein the sensor is detecting the variation in the amount of fluid flowing in one of the flow lines in a set period of time or is detecting the variation in fluid pressure (i.e., pressure differential) along the flow line and in response thereto the sensor controls the flow in the other flow line. | |
87.04 | .. Pressure differential: |
This subclass is indented under subclass 87.03. Subject matter wherein the sensor is detecting the variation
of the fluid pressures at two distinct points along one of the flow
lines and in response thereto the sensor controls the flow in the
other flow line.
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87.05 | . Plural sensors: |
This subclass is indented under subclass 87.01. Subject matter including two or more sensors for detecting two distinct or similar conditions or characteristics of the fluid in one of the flow lines and in response thereto the sensors control the flow in the other flow line. | |
87.06 | .. For single valve: |
This subclass is indented under subclass 87.05. Subject matter comprising one valve element and wherein the sensors operate only one valve element to control the flow. | |
123 | SIPHONS: |
This subclass is indented under the class definition. Apparatus having a flow passage comprising two branches
or legs of unequal effective length by which a liquid can be transferred to
a lower level over an intermediate elevation by the pressure of
the atmosphere in forcing the liquid up the shorter branch or leg
immersed in it while the excess of weight of the liquid in the longer
branch (when once filled) causes a continuous flow.
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124 | . Plural: |
This subclass is indented under subclass 123. Apparatus including a plurality of siphons. | |
125 | .. Tank truck mounted: |
This subclass is indented under subclass 124. Apparatus in which the siphons are connected to the compartments
of a tank truck to discharge the liquid contained therein.
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126 | .. Sequentially discharging in parallel: |
This subclass is indented under subclass 124. Apparatus in which the plural siphons operate successively
to produce plural discharges from the same or from different supply
chambers. Means are usually provided whereby the termination of
the discharge of one of the siphons initiates the discharge of a
subsequently operated siphon.
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127 | ... From plural tanks: |
This subclass is indented under subclass 126. Apparatus in which at least some of the siphons are supplied
from different chambers.
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128 | .. Main siphon with auxiliary starting, stopping or resetting siphon: |
This subclass is indented under subclass 124. Apparatus having a main siphon through which the major portion
of the fluid is discharged and an auxiliary siphon which operates
to start or stop fluid flow through the main siphon, or, after discharge
of the main siphon, restores some or all of the main siphon operating
means to a position permitting a subsequent discharge.
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129 | ... Sinking or bucket-type float operated main siphon, float emptying auxiliary siphon: |
This subclass is indented under subclass 128. Apparatus having a float which fills with liquid and sinks
to initiate discharge through the main siphon, the auxiliary siphon
then emptying the float.
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130 | . With discharge-controlling receiver: |
This subclass is indented under subclass 123. Apparatus having a receiver for the discharge of the siphon,
the siphon discharge being controlled by a condition in the receiver.
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131 | .. With float: |
This subclass is indented under subclass 130. Apparatus in which a float responsive to a condition in
the receiver controls discharge of the siphon.
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132 | . Periodic or accumulation responsive discharge: |
This subclass is indented under subclass 123. Apparatus having means responsive to a condition or characteristic
of the fluid in the system whereby the siphon is caused to discharge
at recurrent intervals, i.e., as often as a certain level of tank
contents is reached.
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133 | .. With manual control: |
This subclass is indented under subclass 132. Apparatus having means whereby the siphon may be discharged
either by manual operation or by a condition or characteristic of
the fluid in the system, the manual control being either auxiliary
to the automatic or the control being convertible from one type
to the other.
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134 | .. Control by filling auxiliary tank: |
This subclass is indented under subclass 132. Apparatus having an additional accumulation receptacle arranged
to discharge recurrently into the siphon chamber, such recurrent
discharge initiating discharge of the siphon.
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135 | .. Float-operated inlet to siphon: |
This subclass is indented under subclass 132. Apparatus having a float responsive to the accumulation
of liquid in the siphon chamber in which the float actuates means
for admitting liquid to the siphon element to initiate liquid flow
there through.
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136 | .. Release of trapped air: |
This subclass is indented under subclass 132. Apparatus in which the liquid accumulating in the siphon
chamber traps air in the siphon element and means is provided to
release such trapped air to initiate liquid flow through the siphon.
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137 | ... Through float-operated vent: |
This subclass is indented under subclass 136. Apparatus in which the trapped air releasing means is actuated
by a float responsive to accumulation of liquid in the siphon system.
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138 | ... Through liquid trap seal: |
This subclass is indented under subclass 136. Apparatus in which the trapped air releasing means comprises
a liquid trap seal, which may be formed by suitable configuration
of the discharge end of the siphon element.
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139 | .... Auxiliary liquid trap seal: |
This subclass is indented under subclass 138. Apparatus in which the air releasing seal comprises a second liquid trap seal in addition to the air trapping seal necessarily present at the discharge end of the siphon element. | |
140 | . With strainer, filter, separator or sediment trap: |
This subclass is indented under subclass 123. Apparatus combined with a strainer, filter, separator or
sediment trap.
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141 | . With recorder, register, signal, indicator or inspection window: |
This subclass is indented under subclass 123. Apparatus combined with a recorder, register, signal, indicator
or inspection window.
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142 | . With flow starting, stopping or maintaining means: |
This subclass is indented under subclass 123. Apparatus having means for applying pressure to initiate,
stop or maintain liquid flow, to vent air for starting, stopping
or maintaining siphon flow, or for controlling the flow by opening, closing
or variably restricting the main flow path of the siphon.
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143 | .. Siphon venting or breaking: |
This subclass is indented under subclass 142. Apparatus in which the siphon is provided with means for
stopping or regulating the flow through the siphon by admitting
air into the siphon.
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144 | .. With leakage or entrained air removal: |
This subclass is indented under subclass 142. Apparatus having means for removing air which accumulates
in the siphon while it is discharging liquid, such means comprising
a positively acting eductor connected at one or more high points
of a siphon and having either a separate or a line jet operated
pumping means.
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145 | .. Pressure applied to liquid in supply chamber: |
This subclass is indented under subclass 142. Apparatus in which pressure either of liquid or a displacing
gas is developed in that part of the system which holds the material
into which the inlet end of the siphon dips to fill the siphon and
start the flow.
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146 | .. Plunge or immersion starting: |
This subclass is indented under subclass 142. Apparatus in which a movable siphon is provided with an enlarged entrance chamber whereby when the chamber end is rapidly introduced into the supply a surge of fluid through the line results, which fills the siphon and initiates flow. | |
147 | .. Pump or liquid displacement device for flow passage: |
This subclass is indented under subclass 142. Apparatus in which the means comprises a pump mounted in
or on the siphon.
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148 | ... Piston: |
This subclass is indented under subclass 147. Apparatus in which the pump includes a piston.
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149 | .... Co-axial within flow passage: |
This subclass is indented under subclass 148. Apparatus in which the piston is moved in the flow passage of the siphon. | |
150 | ... Collapsible bulb: |
This subclass is indented under subclass 147. Apparatus in which the pump comprises a collapsible bulb.
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150.5 | .. Siphon inlet movable to and from seat: |
This subclass is indented under subclass 142. Apparatus in which the siphon is movably mounted so that the inlet end comes into contact with the supply chamber wall when flow is cut off, the contact either operating a valve or directly blocking flow through the siphon. | |
151 | .. With valve or closure in-flow passage: |
This subclass is indented under subclass 142. Apparatus having a flow controlling stopping means which
comprises a valve or closure.
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152 | . With means for mounting and/or positioning relative to siphon chamber: |
This subclass is indented under subclass 123. Apparatus in which the siphon is provided with means for
mounting and/or positioning it relative to the chamber
from which liquid is supplied to the siphon.
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153 | . Elements: |
This subclass is indented under subclass 123. Apparatus comprising the siphon passage forming means, per
se.
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