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Class Information
Number: 236
Name: Automatic temperature and humidity regulation >
Description: 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.










Class Number Class Name No. of Patents
236/DIG.1

Adjustable lever

6
 

Air-relief valves

 
 

Radiator type

 
 

Thermostatic

 
236/63

Expanding float

0
236/64

Expanding fluid

6
236/65

Float-operated

1
236/66

Expanding solid

4
236/61

With pressure control

4
236/62

With separate float

2
236/8

Atomizer type of burner

0
236/6

Brooder type of heater

8
236/DIG.6

Clamp on

7
236/20R

Closed fluid heaters

100
 

Combined thermostat and flow controlled

 
236/23

One valve

6
236/24

Two or more valves

5
236/24.5

Flow and pressure controlled

3
236/25R

Flow controlled

20
236/25A

Flow responsive valve controlling fuel

16
236/26R

Pressure-operated

5
236/30

Bourdon type

0
236/31

Float

0
236/26A

Gas burner controls

5
236/26C

Pressure responsive elements per se

1
236/26B

Pressure responsive means controls draft

0
236/26F

Pressure responsive means controls fluid coupling

0
236/26D

Pressure responsive means controls forced draft

2
236/26E

Pressure responsive means controls oil burner

1
236/29

Relay, puppet

0
236/28

Stroke retarding

0
236/27

With balancing pressure chamber

1
236/22

Radiator type

4
236/21R

Safety cut-out

24
236/21B

Water heater control with excessive temperature cutoff

28
 

Thermostatic

 
236/32

Expanding fluid

5
236/33

Expanding solid

1
236/20A

Top burner control

14
236/DIG.7

Coil bulb

2
236/14

Combined boiler and furnace controlled

54
236/16

Combined draft and check control

16
236/9R

Combined heater and apartment controlled

12
236/9A

Combined heating and apartment control with heating medium circulation control

31
236/DIG.8

Computer

8
236/34

Cooling radiator

37
236/35

Air control

43
236/35.2

Shutters

12
236/35.3

Servomotor

10
236/34.5

Bypass

280
236/51

Distance-adjusted

459
236/45

Draft-operated

36
 

Exchange heaters

 
236/17

Pressure-operated

2
 

Thermostatic

 
236/18

Expanding fluid

12
236/19

Expanding solid

1
236/DIG.11

Expandible fluid

3
236/DIG.2

Fail safe

47
236/DIG.9

Fan control

56
236/DIG.10

Filling

0
236/52

Float-operated

6
236/15R

Furnace controlled

27
236/15BR

Commercial furnace controls

15
236/15BD

Air and fuel control

72
236/15BB

Product and furnace temperature sensor

33
236/15BE

Recuperator, gas turbine, melting furnace

8
236/15BA

Solid fuel burning

12
236/15BF

Specialized furnace or heater, e.g., crystal growing

11
236/15BG

Timer or program

18
236/15BC

With conveyor thru furnace

12
236/15A

Domestic oven controls

39
236/15E

Furnace controlled responsive to combustion products composition

94
236/15C

Furnace controlled responsive to pressure

35
236/DIG.5

Fusible

3
236/DIG.12

Heat conductor

7
236/36

Heating radiator

16
236/38

Air control

37
236/37

Combined radiator and apartment controlled

24
 

Exhaust operated

 
 

Fluid-operated motor

 
236/39

Aspirator

0
236/40

Thermostatic

2
236/41

With trap

3
 

Thermostatic

 
236/42

Expanding fluid

35
236/43

Expanding solid

1
236/47

High and low temperature alternate

143
236/10

Hot-air furnace

53
236/11

Air and fire control

128
236/DIG.13

Humidithermostat

2
236/44R

Humidity control

100
236/44C

Humidity and temperature control

292
236/44A

Humidity control per se

143
236/44E

With electrical conductive element

20
236/44B

With evaporator cooling spray

24
236/2

Incubator type of heater

19
236/3

Electric

32
 

Thermostatic

 
236/4

Expanding fluid

1
236/5

Expanding solid

2
236/DIG.14

Intermittant control

1
236/50

Liquid valve

3
236/1R

Miscellaneous

41
236/1A

Burner controls not elsewhere classified in class

24
236/1H

Burner controls with automatic cutoff

15
236/1G

Heat conserving damper control

128
236/1C

Heating and cooling controls

217
236/1E

Multistage controls

71
236/1EA

Multiple valve staging

76
236/1EB

Single valve staging

27
236/1F

Piezoelectric crystal and other electric unit temperature controls

8
236/1D

Stoker controls

1
236/1B

Zone control for heating and cooling medium

168
236/12.1

Mixing fluid of dissimilar temperature

65
236/12.14

Fluid from only one supply is controlled

24
236/12.16

Having oscillating or reciprocating valve

33
236/12.21

Axially spaced flow control faces

21
236/12.22

Seats face outwardly

12
236/12.23

Ports closed by valve action

19
236/12.2

Tubular valve member

100
236/12.17

Valving member moves about an axis

16
236/12.19

Axially spaced flow control faces

11
236/12.18

Tubular valve member

14
236/12.13

Including bypass

38
236/12.15

Including separate relatively movable valve for each fluid supply

41
236/12.11

Mixing valve with temperature motive means

76
236/12.12

Having electrical motive means

145
236/13

Plenum type

181
236/67

Motors

10
236/71

Balanced

1
236/72

Thermostatic relay

4
236/73

Continuous drive

1
236/74R

Electric

10
236/74A

Electric motor driven pump

4
236/75

Reciprocating or oscillating

24
236/78R

Relay

45
236/78A

Plural control elements

17
236/78B

Plural temperature sensors

66
236/78D

Proportional control

195
236/78C

Reversible motor

30
236/76

Step-by-step

4
236/77

Vibrating arm

1
 

Fluid-operated

 
236/79

Relay

5
236/82

Compound

10
236/83

Snap-acting

0
236/84

Electric

44
236/85

Pressure-operated

2
236/80R

Shunt

37
236/80A

Airplane

7
236/80F

Diaphragm biased open by line pressure

2
236/80G

Piston-type valve operator

4
236/80B

Plural main valves

8
236/80E

Plural pilots by single actuator

4
236/80C

Plural temperature sensors

3
236/80D

Pure fluid

8
236/81

Snap-acting

2
 

Thermostatic

 
236/86

Expanding fluid

38
236/87

Expanding solid

97
236/88

Magnetic release

10
236/89

Safety cut-out

4
 

Relay

 
236/68R

Auxiliary heater

59
236/68C

Auxiliary heater applied to control device away from main temperature sensor

9
236/68B

Auxiliary heater applied to main temperature sensing means

68
236/68A

Heated expansible chamber vaporizer liquid injected by thermostat

4
236/68D

Thermo-controlled pilot burner operates a heat motor to actuate main fuel valve

11
236/69

Pyrometer galvanometer

4
236/70

With beating element

1
236/90

Thermal release

6
236/DIG.15

Photocell

5
236/DIG.16

Relief spring

1
236/DIG.18

Rubber

0
236/7

Sadiron type

2
236/DIG.3

Safety electric

6
236/DIG.4

Safety vacuum

0
236/48R

Snap-acting

72
236/48A

Including a permanent magnet

4
236/DIG.17

Spring rate compensator

1
 

Thermostatic

 
236/97

Cooled element

1
236/99R

Expanding fluid

68
236/99C

External and internal sensors

4
236/100

Float or piston operation

128
236/99D

Heat shield

12
236/99J

In flow line

43
236/99G

Lever

12
236/99H

Liquid fuel feed

1
236/99A

Nontemperature sensor

3
236/99B

Nonvalving device

5
236/99F

Pivoted valve

6
236/99E

Plural temperature sensors

19
236/99K

Wax thermostat

48
236/101R

Expanding solid

67
236/101D

Coil thermostat

81
236/101E

Compound lever

63
236/102

Concentric elements

28
236/103

Conduit

6
236/104

Fire pot

1
236/101A

Plural inlets or outlets

14
236/101B

Plural thermostats

23
236/101C

Thermostat with i.c.e.

82
 

Flue or heater attached

 
236/95

Expanding fluid

3
236/96

Expanding solid

15
236/98

Fluid transmission

7
236/91R

Hot and cold

59
236/91G

Current modifying sensor

29
236/91D

Heating and cooling

84
236/91A

Nonhabitable enclosure, e.g., incubator

21
236/91E

Plural room or plural outside thermostat

43
236/91F

With at least one temperature sensor for temperature modifying media

176
236/91C

With diverse sensor, e.g., humidity, pressure

172
236/91B

With oil burner

5
236/93R

In fluid controlled

251
236/93A

Expanding fluid

141
236/93B

Shower heads

35
236/94

With indicator or alarm

424
236/92R

With pressure control

54
236/92A

Combined with fuel gas pressure regulator

6
236/92C

Pressure- and temperature-actuated relief valves

31
236/92D

Pressure- and temperature-actuated valves associated with carburetors

2
236/92B

Refrigeration expansion valves

206
 

Traps

 
 

Float valve

 
236/53

Thermostatic air valve

4
 

Pressure-operated valve

 
236/54

Thermostatic pilot

4
 

Thermostatic

 
236/56

Expanding fluid

21
236/57

Bourdon type

3
236/58

Wafer type

22
236/59

Expanding solid

26
236/60

Conduit

0
236/55

With float-controlled pilot

1
236/DIG.19

Ventilated thermostat

33
236/49.1

Ventilator type

87
236/49.3

Electrically actuated

846
236/49.5

Mechanical linkage actuated

129
236/49.4

Pneumatically actuated

110
236/49.2

Responsive to fire or smoke

22
236/46R

With timing element

438
236/46C

Controlled diverse means

37
236/46A

Diverse sensor

16
236/46D

Domestic oven

8
236/46E

Hot air furnace

26
236/46B

Stoker control

1
236/46F

Timer other than clock

88
 
 
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