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| Class 236 | AUTOMATIC TEMPERATURE AND HUMIDITY REGULATION |
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![[List of Pre Grant Publications for class 236 subclass 1R]](../as.gif) | ![[List of Patents for class 236 subclass 1R]](../ps.gif) | 1R | MISCELLANEOUS |
| | 1A |  Burner controls not elsewhere classified in class |
| | 1B | Zone control for heating and cooling medium |
| | 1C | Heating and cooling controls |
| | 1D | Stoker controls |
| | 1E | Multistage controls |
| | 1F | Piezoelectric crystal and other electric unit temperature controls |
| | 1G | Heat conserving damper control |
| | 1H | Burner controls with automatic cutoff |
| | 2 | INCUBATOR TYPE OF HEATER |
| | 6 | BROODER TYPE OF HEATER |
| | 7 | SADIRON TYPE |
| | 8 | ATOMIZER TYPE OF BURNER |
| | 9R | COMBINED HEATER AND APARTMENT CONTROLLED |
| | 10 | HOT-AIR FURNACE |
| | 12.1 | MIXING FLUID OF DISSIMILAR TEMPERATURE |
| | 12.11 | Mixing valve with temperature motive means |
| | 12.13 | Including bypass |
| | 12.14 | Fluid from only one supply is controlled |
| | 12.15 | Including separate relatively movable valve for each fluid supply |
| | 12.16 | Having oscillating or reciprocating valve |
| | 12.17 |  Valving member moves about an axis |
| | 12.2 | Tubular valve member |
| | 12.21 | Axially spaced flow control faces |
| | 12.23 | Ports closed by valve action |
| | 13 | Plenum type |
| | 14 | COMBINED BOILER AND FURNACE CONTROLLED |
| | 15R | FURNACE CONTROLLED |
| | 15A | Domestic oven controls |
| | 15BR | Commercial furnace controls |
| | 15BA | Solid fuel burning |
| | 15BB | Product and furnace temperature sensor |
| | 15BC | With conveyor thru furnace |
| | 15BD | Air and fuel control |
| | 15BE | Recuperator, gas turbine, melting furnace |
| | 15BF | Specialized furnace or heater, e.g., crystal growing |
| | 15BG | Timer or program |
| | 15C | Furnace controlled responsive to pressure |
| | 15E | Furnace controlled responsive to combustion products composition |
| | 16 | COMBINED DRAFT AND CHECK CONTROL |
| EXCHANGE HEATERS |
| | 20R | CLOSED FLUID HEATERS |
| | 21R | Safety cut-out |
| | 22 | Radiator type |
| Combined thermostat and flow controlled |
| | 24.5 | Flow and pressure controlled |
| | 25R | Flow controlled |
| | 26R | Pressure-operated |
| | 27 | With balancing pressure chamber |
| | 28 | Stroke retarding |
| | 29 | Relay, puppet |
| | 30 | Bourdon type |
| | 31 | Float |
| | 26A | Gas burner controls |
| | 26B | Pressure responsive means controls draft |
| | 26C | Pressure responsive elements per se |
| | 26D | Pressure responsive means controls forced draft |
| | 26E | Pressure responsive means controls oil burner |
| | 26F | Pressure responsive means controls fluid coupling |
| Thermostatic |
| | 20A | Top burner control |
| | 34 | COOLING RADIATOR |
| | 36 | HEATING RADIATOR |
| | 44R | HUMIDITY CONTROL |
| | 44A | Humidity control per se |
| | 44B | With evaporator cooling spray |
| | 44C | Humidity and temperature control |
| | 44E | With electrical conductive element |
| | 45 | DRAFT-OPERATED |
| | 46R | WITH TIMING ELEMENT |
| | 46A | Diverse sensor |
| | 46B | Stoker control |
| | 46C | Controlled diverse means |
| | 46D | Domestic oven |
| | 46E | Hot air furnace |
| | 46F | Timer other than clock |
| | 47 | HIGH AND LOW TEMPERATURE ALTERNATE |
| | 48R | SNAP-ACTING |
| | 49.1 | VENTILATOR TYPE |
| | 49.2 | Responsive to fire or smoke |
| | 49.3 | Electrically actuated |
| | 49.4 | Pneumatically actuated |
| | 49.5 | Mechanical linkage actuated |
| | 50 | LIQUID VALVE |
| | 51 | DISTANCE-ADJUSTED |
| | 52 | FLOAT-OPERATED |
| TRAPS |
