This class relates only to automatic temperature and humidity
regulation, and is not to include the system where the thermostatic
control constitutes but an element of the system, even though the
system includes temperature regulation, such, for example, as refrigeration,
where the refrigerating structure or method is claimed. Systems
are also excluded where the specific burner structure, specific
boiler structure, specific heat-exchange element, specific fire
extinguishing structure, specific heat distributing system, specific
internal-combustion engine structure, specific furnace structure,
specific gas producer structure or method, specific heating and
molding devices, etc., are claimed--that is, this class is confined
to automatically operating temperature or humidity controlling mechanism,
but excludes all patents to the specific mechanism controlled, even
though the thermostat is claimed, either broadly or specifically, in
combination therewith.
(1)
Note. This class includes only patents for devices which
control temperature or humidity automatically, but not those which
are merely operated by temperature variation. The only apparent
exceptions are the heating radiator thermostatic air relief valves,
the thermostatic steam traps and thermostatically operated regulating
valves.
(2)
Note. This class provides for all heating radiator automatic
air relief valves including a thermostat.
(3)
Note. This class provides for all automatic steam traps including
a thermostat in the combination.
(4)
Note. Patents for devices for controlling the flow of air
over an automobile radiator by means of a thermostat located either
in the cooling water or under the hood are classified in this class
unless some novelty in the engine or cooling system is claimed.
Drying and Gas or Vapor Contact With Solids,
subclasses 524+ for automatic control of such apparatus, including
temperature and humidity regulation for such specific apparatus.
Glass Manufacturing,
subclass 162 for temperature or heater control responsive to
a condition sensing means combined with glassworking or treating
apparatus.
Liquid Heaters and Vaporizers,
subclasses 451.1+ for devices for automatically controlling the feed
water to a boiler by means of a thermostat and according to the
level of the water in the boiler, 504.1 and 504.3 for fusible plugs
where a pressure is released on the plug fusing at a certain temperature
and 504.2 for devices where a thermostat operates on a fall of boiler
water level to open a valve to sound an alarm.
Internal-Combustion Engines, appropriate subclasses for devices for automatically
controlling the flow (or supply) of air to the manifold of an internal-combustion
engine according to the temperature of the engine or manifold.
Tobacco,
subclass 303 for processes and apparatus for treating tobacco
with fluids combined with means for automatically regulating the temperature
and/or humidity of the fluids.
Fluid Handling, appropriate subclass for fluid handling apparatus and processes
not otherwise provided for, including automatic control of fluid
flow in response to a change in a condition. Note particularly
subclasses 59+ , 72+, 79+, 457, and 468 for the
control of flow in response to a change in thermal conditions.
Heat Exchange,
subclasses 201+ for specific heating and cooling elements with
automatic control, and subclasses 281+; 287+ for
specific heat exchange elements with automatic temperature or pressure
control or response.
Communications: Electrical,
subclasses 584+ for electrical alarms automatically responsive to
temperature, and subclass 602 for electrical alarms automatically
responsive to humidity.
Combustion,
subclasses 18+ for (1) a residual specific burner with a timer,
programmer, or condition responsive control; or (2) for a residual
temperature modifying apparatus specialized to combustion having
a nonspecific burner that is merely turned off and on by a conventional
off and on thermostat sensing the temperature of the chamber or
material being heated.
This subclass is indented under subclass 2. Subject matter in which the regulating means is operated
directly by a thermostat of the expanding-fluid type.
This subclass is indented under subclass 2. Subject matter in which the regulating means is operated
directly by a thermostat of the expanding solid type.
Electric Heating,
subclasses 490+ for heating systems of general utility with automatic
control means, and appropriate subclasses for specific type electrical
heating devices with automatic current, voltage or temperature control
means.
This subclass is indented under the class definition. Devices controlling the flow of steam or air and fuel to
an atomizer type of burner, according to changes in pressure or
temperature in the device heated.
This subclass is indented under the class definition. Subject matter which are operated by devices responsive
to temperature changes in a heater and also temperature changes
in an apartment to be heated.
This subclass is indented under the class definition. Subject matter comprising hot air furnaces which are provided
with automatic temperature regulating means. In the devices of this
subclass the fire is generally regulated by the temperature in the
air space of the furnace.
This subclass is indented under subclass 10. Subject matter in which the fire and also the flow of the
heating air through the air chamber of the furnace is controlled.
This subclass is indented under the class definition. Apparatus mixing fluid from two or more different supplies
in which at least one of the supplies of the fluid is controlled
according to the temperature of the mixed fluid or the temperature
of one of the fluid supplies.
This subclass is indented under subclass 12.1. Apparatus comprising flow control means positively moved
to an adjusted position by a motor means wherein the motor means
is moved to the adjusted position by a medium or force controlled
by but not resulting directly from a sensed temperature condition
or a change in such a condition.
(1)
Note. Examples of motors to be found herein are electric
motors controlled by thermostatic switches, fluid motors with independent
sources of fluid pressure where a thermal responsive valve senses a
system conditions and regulates fluid flow from said source to motor.
(2)
Note. A valve merely moved by a heat motor which directly
senses a system condition and responds to move a valve, e.g., bimetal,
closed fluid system with sensing bulb, etc., will not be found herein.
This subclass is indented under subclass 12.11. Apparatus comprising a motor means responding to electrical
energy input for moving the flow control means.
This subclass is indented under subclass 12.1. Apparatus in which the device is provided with separate
controllable through passages, leading from a source of fluid, at
least one of the passages having a valving means permitting said fluid
to pass directly to a point of use, regardless of the temperature
existing in the system, and at least one other passage being provided with
means for controlling the flow of said fluid in response to a temperature
condition or a change in temperature occurring at some point in
the apparatus.
This subclass is indented under subclass 12.1. Apparatus in which the flow of only one of the supplies
is controlled by the sensed temperature condition of the mix.
This subclass is indented under subclass 12.1. Apparatus wherein the flow of each supply is controlled
by a separate flow control member movable in response to fluid temperature.
(1)
Note. Each member may be movable in response to the temperature
of either a respective fluid or a fluid mix.
This subclass is indented under subclass 12.1. Apparatus wherein a flow control means moves in a prescribed
straight line or arcuate path of travel to control fluid flow.
This subclass is indented under subclass 12.16. Apparatus wherein the flow control means comprises a flow
control portion movable in an arcuate path of travel.
This subclass is indented under subclass 12.17. Apparatus wherein the flow control means comprises a hollow
sleeve or cylinder like member or portion.
(1)
Note. A cup shape flow control means is proper for classification
here if the sleeve or cylinder portion performs a flow control function.
Otherwise classification will be based on other features.
This subclass is indented under subclass 12.17. Apparatus wherein the flow control means comprises a member
having a seating face at each of its sides for coacting with seats
on oppositely disposed fluid inlets.
This subclass is indented under subclass 12.16. Apparatus wherein the flow control means comprises a movable
valving member having a seating face at each end for coacting with
seats on oppositely disposed fluid inlets.
This subclass is indented under subclass 12.16. Apparatus wherein the movable flow control means moves to
and from contiguously along a surface having fluid ports therein
for controlling fluid passing therethrough.
This subclass is indented under subclass 12.1. Devices controlling the mixing of warm and cold air in the
plenum type of heating systems according to the temperature of the
hot or cold air, mixed air, or apartment to be heated.
This subclass is indented under the class definition. Devices controlling the fire under a boiler according to
conditions in the boiler and also according to conditions in the
furnace.
This subclass is indented under the class definition. Devices controlling the draft damper and check damper of
a stove or furnace according to changes in the temperature of apartment
or element heated.
This subclass is indented under the class definition. Devices controlling the supply of heating fluid to an exchange
or surface heater by the pressure of the fluid heated.
This subclass is indented under the class definition. Devices controlling the supply of heating fluid to an exchange
or surface heater directly by means of a thermostat of the expanding fluid
type responsive to the temperature of the fluid heated.
This subclass is indented under the class definition. Devices controlling the supply of heating fluid to an exchange
or surface heater directly by means of a thermostat of the expanding solid
type responsive to the temperature of the fluid heater.
This subclass is indented under subclass 20. Devices controlling the heating means according to the conditions
in the heater, with additional means for cutting out the regulating means
under abnormal conditions, such as failure of the regulator, (as
by rupture of the diaphragm, for example), the pressure exceeding
a certain limit, the water-level falling below a certain limit,
the temperature getting too high, or heating means failing.
(1)
Note. The regulator must generally be repaired or reset by
hand.
This subclass is indented under subclass 20. Combined radiators and heaters where the heater is controlled
according to the temperature of the radiator.
This subclass is indented under subclass 20. Devices in which the heating means, usually a gas-burner,
is controlled by the combined action of a thermostat in the fluid
heated and a flow-motor operated by the flow of the fluid heated,
the thermostat and motor controlling the movement of a single control-valve.
This subclass is indented under subclass 20. Devices in which the heating means, usually a gas-burner,
is controlled by the combined action of a thermostat in the fluid
heated and a flow-motor operated by the flow of the fluid heated,
the thermostat and motor operating on separate valves.
This subclass is indented under subclass 20. Devices in which the combined dynamic and static pressure
of the fluid heated controls the heating means, and those in which
this combined force is opposed by one of its elements alone or by
a different combination of them.
This subclass is indented under subclass 20. Devices not otherwise classifiable controlling the heating
of the closed fluid-heater according to the pressure in the heater.
This subclass is indented under subclass 26. Devices with means for increasing the resistance to movement
of a control element as movement from normal increases.
This subclass is indented under subclass 26. Devices in which at a given pressure a puppet-valve opens,
allowing pressure from the boiler to operate a motor, which actuates
the heat-controlling means.
This subclass is indented under subclass 26. Devices in which the pressure acts on a body of liquid,
thereby varying the level thereof, and a float or piston rising
and falling with the change in level of the liquid operates the
controlling means. Also includes devices where a float is raised
more or less by change in pressure of steam thereunder when water
boils.
This subclass is indented under subclass 20. Devices controlling the heating means directly by a thermostat
of the expanding-fluid type responsive to the temperature of the
fluid heated.
This subclass is indented under subclass 20. Devices controlling the heating means directly by a thermostat
of the expanding-solid type responsive to the temperature of the
fluid heated. The thermostat may be the walls of the container.
This subclass is indented under the class definition. Devices not otherwise classified controlling the temperature
of the fluid within a cooling-radiator, as the radiator in the cooling system
of an internal-combustion engine.
This subclass is indented under subclass 34. Subject matter in which a by pass is interposed in the cooling
circuit to by pass the radiator, usually including a thermostatically
operated valve responsive to the temperature of the coolant or engine
and positioned in the circuit to direct the flow of the coolant
either to the radiator or the by pass.
This subclass is indented under subclass 34. Devices controlling the flow of air over the radiator according
to the temperature of the fluid cooled or the cooling-air or the
engine temperature.
Heat Exchange,
subclass 98 for radiator with means controlling the flow of air
therethrough not automatically controlled, and subclasses 281+;
287+ for a heat exchanger having automatic temperature
or pressure control.
This subclass is indented under subclass 36. Means regulating the flow of air over the radiator according
to temperature changes in the radiator, the air heated, or the apartment
to be heated.
This subclass is indented under subclass 36. Heating-radiators with means for exhausting the air therefrom
in which the heating effect of the radiator is controlled by a fluid-motor
operated by said exhaust, the connection between the exhaust and
the motor being controlled by a thermostat.
This subclass is indented under subclass 36. Heating-radiators provided with a thermostat subjected to
the exhaust from the radiator and controlling the supply of heating
fluid to the radiator.
This subclass is indented under subclass 36. Heating-radiators with a thermostat of the expanding-fluid
type for directly regulating the supply of heating fluid to the
radiator.
This subclass is indented under subclass 36. Heating-radiators with a thermostat of the expanding solid
type for directly regulating the supply of heating fluid to the
radiator.
(1)
Note. This also includes devices operated by the expansion
of the radiator.
This subclass is indented under the class definition. Devices controlling the humidity of a room or apartment
by means of a device responsive to the relative humidity therein.
This subclass is indented under the class definition. Devices in which a clock is employed for adjusting the regulating
device at a given time or where the clock cuts in or cuts out the
regulating device; also devices with timing means for periodically
placing the regulating means into and out of operation.
This subclass is indented under the class definition. Devices controlling the temperature by two different devices
alternately, one set to maintain the temperature relatively high
and the other relatively low.
This subclass is indented under the class definition. Devices in which the temperature control valve does not
move on slight changes in temperature, but its operating force is
stored up during a certain movement of the temperature responsive
device, and then the valve (or controlling means) suddenly moves
throughout its entire movement not provided for more specifically
below.
Machine Element or Mechanism,
subclasses 100.1+ for snap action devices associated with mechanism
for converting reciprocating motion to or from oscillating motion.
This subclass is indented under the class definition. Device comprising particular temperature responsive means
for operating a device which controls air flow to, from, or within
a ventilated space.
(1)
Note. Inclusion in this subclass requires specific temperature
sensing and coupled operating means structure (i.e., a "means
for controlling a ventilator in response to temperature" is
not sufficient to inclusion in this subclass whereas a "bimetallic
element operated actuating linkage for a ventilator" is
sufficient for inclusion).
(2)
Note. The means usually detects and responds to air temperature
within the ventilated space or within an air passage leading to
the space.
Ventilation, appropriate subclasses, for ventilator structures, per
se, and for ventilator operated by a nominal temperature responsive
control means for automatic temperature regulation; note, in particular,
subclass 370 for ventilation means with condition responsive
control, subclass 258 for an air distributing, moveable louver responsive
to temperature, and subclass 369 for an outlet cowl having a spaced
cap and a positively actuated valve with a fusible release.
This subclass is indented under subclass 49.1. Device wherein the air flow control means is responsive
to a sensing means which detects a presence of (1) a flame due to
combustion or (2) a vaporous emission resulting from combustion.
Fire Extinguishers, appropriate subclasses, for a specific fire extinguisher apparatus
combined with a fire or smoke responsive control means; see, in
particular,
subclasses 56+ for such a condition responsive fire-extinguisher
for a special application.
Ventilation,
subclass 257 for an inlet-ceiling-type air diffuser having an emergency
smoke or fire responsive valve, subclass 342 for an outlet airway
with an air pump and specific emergency smoke handling structure, subclass
357 for an outlet airway having an emergency smoke handling feature,
and subclass 369 for fire dampers which cut off ventilated flow in
response to elevated temperatures.
This subclass is indented under subclass 49.1. Device wherein the means operates the air flow control device
by way of a system of interconnected machine elements.
This subclass is indented under the class definition. Automatic steam-traps in which the water-drain valve is
float-operated, but which are provided with a thermostatically-controlled air-vent.
This subclass is indented under the class definition. Automatic steam-traps with a pressure-motor for operating
the drain-valve and a thermostatically-operated pilot-valve for
controlling the action of the motive fluid on the pressure-motor.
This subclass is indented under the class definition. Automatic steam-traps with the drain-valve operated by a
thermostat and a float-controlled pilot-valve for controlling the
flow of heating fluid to the thermostat for operating the same.
This subclass is indented under the class definition. Automatic steam-traps in which the drain-valve is directly
operated by a thermostat of the expanding-fluid type.
This subclass is indented under subclass 56. Automatic steam-traps in which the drain-valve is directly
operated by a thermostat of the expanding-fluid type in the shape
of a Bourdon tube.
This subclass is indented under the class definition. Automatic steam-traps in which the drain-valve is directly
operated by a thermostat of the expanding-solid type.
This subclass is indented under subclass 59. Devices in which the drain-valve is directly operated by
a thermostat of the expanding-solid type, but which is in the shape
of a conduit, through which the heating fluid passes or is discharged.
This subclass is indented under the class definition. Air relief-valves controlled by both thermostatic and float-controlled
means, the float being distinct from the thermostat.
This subclass is indented under the class definition. Air relief-valves controlled by both thermostatic and float-controlled
means, the float being also the expanding element.
This subclass is indented under the class definition. Air relief-valves controlled by a thermostat only, the thermostat
being of the expanding-fluid type.
This subclass is indented under subclass 64. Subject matter controlled by a thermostat only, the thermostat
being of the expanding-fluid type, the expanding fluid operating
a float or piston to operate the valve.
This subclass is indented under the class definition. Air relief-valves controlled by a thermostat only, the thermostat
being of the expanding-solid type.
This subclass is indented under the class definition. Devices which are operated by motors whose operation is
controlled by means responsive to the temperature to be regulated.
This subclass is indented under subclass 67. Devices in which an expanding element is used to operate
the controlling means, the expanding element being heated (or cooled)
by a heater set into operation by means of a separate element responsive
to the temperature to be regulated.
This subclass is indented under subclass 67. Devices operated by motors which are controlled by a relay
consisting of a galvanometer operated by the current generated in
a thermocouple responsive to the temperature to be regulated.
This subclass is indented under subclass 69. Devices in which an additional beating element is used to
press the pointer of the galvanometer onto the controlling-contacts
at regular predetermined intervals.
This subclass is indented under subclass 67. Devices operated by a balanced motor in which changes in
temperature destroy the balance of the motor, and thus operate the
regulating means.
This subclass is indented under subclass 71. Devices in which changes in temperature destroy the balance
of the motor by means of a thermostatically-operated relay.
This subclass is indented under subclass 67. Devices operated by a continuously-driven motor normally
disconnected from the regulating means, but placed in operative
connection therewith by means responsive to the temperature to be
controlled.
This subclass is indented under subclass 67. Devices not otherwise classifiable which are operated by
electric motors whose operation is controlled by means responsive
to the temperature to be regulated.
This subclass is indented under subclass 74. Devices of the type where the regulating member is operated
by an element reciprocated or oscillated by means of a solenoid
or electric magnet whose operation is controlled by means responsive
to the temperature to be regulated.
Electrical Generator or Motor Structure,
subclasses 15+ for reciprocating electric motor structure, and
subclasses 36+ for oscillating electric motor structure.
This subclass is indented under subclass 74. Devices which do not operate the controlling means to the
limits at a single operation, but give step-by-step action.
This subclass is indented under subclass 74. Devices in which the control element is operated by means
of a vibrator and circuit-make-and-break device.
This subclass is indented under subclass 74. Devices the motors being set into operation by a relay,
which is in turn controlled by means responsive to the temperature
to be controlled.
This subclass is indented under subclass 67. Devices operated by fluid pressure and controlled by a relay,
which is in turn controlled by means responsive to the temperature
to be regulated.
This subclass is indented under subclass 79. Devices in which the relay does not operate on slight changes
in temperature, but its operating force is stored up during a certain
movement of the temperature-responsive device and then suddenly
moves through its entire movement.
This subclass is indented under subclass 79. Devices wherein the fluid-motor controlled by a relay is
controlled by another relay, which is in turn controlled by the
means responsive to the temperature to be regulated.
This subclass is indented under subclass 82. Devices the first relay being of the type which does not
operate on slight movements in the second relay, but the operating
force is stored up during a certain movement of the second relay
and then suddenly the first moves through its entire movement.
This subclass is indented under subclass 79. Devices wherein the fluid-operated motor is controlled by
an electrically-operated relay-valve, which is in turn controlled
by the means responsive to the temperature to be regulated. The
electric device must actually operate the relay-valve at least in
one direction.
This subclass is indented under subclass 79. Devices wherein the relay is operated by a device responsive
to changes in pressure in the fluid to be regulated.
This subclass is indented under subclass 67. Devices wherein the motor is a spring or weight motor which
is released by magnetic means controlled by the means responsive
to the temperature to be regulated.
This subclass is indented under subclass 88. Devices which is provided with means for opening the circuit
through the magnetic means when the motor is run down.
This subclass is indented under subclass 67. Devices wherein the motor is a spring or weight motor which
is released by the thermostat responsive to the temperature to be
controlled.
This subclass is indented under the class definition. Devices operated by a plurality of thermostats, one or more
in a location at low temperature (as the outside of a building)
and the others at a relatively high temperature, (as the inside
of a building).
This subclass is indented under the class definition. Devices operated by a thermostat located in the fluid controlled,
so that its flow is controlled by its own temperature.
This subclass is indented under the class definition. Devices thermostatically operated, with an indicator or
alarm to indicate the operation or failure to operate.
This subclass is indented under the class definition. Devices controlled by a thermostat of the expanding-fluid
type, attached to the outside of the heater or flue controlled and
responsive to the temperature thereof.
This subclass is indented under the class definition. Devices controlled by a thermostat of the expanding-solid
type attached to the outside of the heater or flue controlled and
responsive to the temperature thereof.
This subclass is indented under the class definition. Devices operated by a thermostat one element of which is
provided with means for cooling it or keeping it cool, so as to
increase the sensitiveness of the device.
This subclass is indented under the class definition. Devices operated by a thermostat in which a fluid is used
to transmit the movement of the thermostatic element to the element
controlled.
This subclass is indented under the class definition. Devices in which the regulating means is operated directly
by a thermostat of the expanding-fluid type.
This subclass is indented under the class definition. Devices in which the regulating means is operated directly
by a thermostat of the expanding-solid type.
This subclass is indented under subclass 101. Devices in which the thermostat of the expanding-solid type
is made up of two or more elements of different coefficients of
expansion, and in which these elements are concentrically arranged.
The coefficient of expansion of one element might be zero.
This subclass is indented under subclass 101. Devices in which the thermostat of the expanding-solid type
is in the shape of a tube through which the fluid to which the thermostat
is responsive flows.
This subclass is indented under subclass 101. Devices in which the expansion and contraction of a fire-pot,
or a combustion-chamber wall of a heater is used to regulate the
heating effect thereof.
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