CLASS 237, HEATING SYSTEMS |
1R | MISCELLANEOUS: |
This subclass is indented under the class definition. Means for heating not otherwise provided for. | |
1SL | . Special liquid |
This subclass has no definition. | |
2R | AUTOMATIC CONTROL: |
This subclass is indented under the class definition. Heating systems with means for regulating temperature and
pressure independent of manual control.
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3 | . Brooder and incubator: |
This subclass is indented under subclass 2. Automatic control for heating apparatus for brooders and
incubators.
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4 | .. Water: |
This subclass is indented under subclass 3. Automatic control for water-circulating heaters for incubators. | |
5 | . Car: |
This subclass is indented under subclass 2. Automatic control for heating apparatus for cars, either
freight or passenger.
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6 | .. Steam: |
This subclass is indented under subclass 5. Automatic control for steam heating apparatus.
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7 | . Combined radiator and boiler: |
This subclass is indented under subclass 2. Automatic control of a unitary structure consisting of steam
or water radiators combined with a boiler.
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8R | . Water: |
This subclass is indented under subclass 2. Automatic control of water heating systems.
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8A | .. Automatic heating systems (water) with controls |
This subclass has no definition. | |
8B | .. Heating systems with high temperature boiling liquids |
This subclass has no definition. | |
8C | .. With boiler by-pass valve control |
This subclass has no definition. | |
8D | .. Compact heating systems with controls |
This subclass has no definition. | |
9R | . Steam: |
This subclass is indented under subclass 2. Automatic control of steam heating systems.
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10 | .. Gas displaced: |
This subclass is indented under subclass 9. Steam heating systems which displace the steam in the radiators by a gas, such as air or products of combustion. | |
9A | .. Automotive systems |
This subclass has no definition. | |
9B | .. With direct contact between products of combustion and the liquid to be vaporized |
This subclass has no definition. | |
11 | . Compressed air: |
This subclass is indented under subclass 2. Automatic control in which air is compressed and thereby heated and circulated through the radiators. | |
12 | . Processes: |
This subclass is indented under subclass 2. Processes for the automatic control of heating systems. | |
2A | . Automatic heating systems with controls |
This subclass has no definition. | |
2B | . Heat source is a reverse cycle refrigerating system or heat pump |
This subclass has no definition. | |
12.1 | HEAT AND POWER PLANTS: |
This subclass is indented under the class definition. Systems combining means for generating and distributing
heat to buildings or other enclosures with means for the production
of power by a motor.
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12.2 | . Fire engine: |
This subclass is indented under subclass 12.1. Combinations including a fire engine. | |
12.3R | . Vehicle: |
This subclass is indented under subclass 12.1. Combinations including a heating system for a vehicle other
than a railway car or train.
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12.3A | .. The heating is effected by circulated air |
This subclass has no definition. | |
12.3B | .. The heating is effected by circulated hot water |
This subclass has no definition. | |
12.3C | .. The heating system includes a combustion type heater |
This subclass has no definition. | |
12.4 | . Car: |
This subclass is indented under subclass 12.1. Heating systems for a car or train, combined with the locomotive or other power plant. | |
12.5 | .. Smoke: |
This subclass is indented under subclass 12.4. Heating systems in which the car or train is heated directly by the furnace gases from the power plant. | |
12.6 | .. Air: |
This subclass is indented under subclass 12.4. Heating systems in which the car or train is heated by a supply of warm air supplied by the power plant. | |
12.7 | ... Radiator: |
This subclass is indented under subclass 12.6. Heating systems in which the warm air is passed through radiators. | |
12.8 | .. Steam: |
This subclass is indented under subclass 12.4. Heating systems in which the car or train is heated by steam, usually from the power plant. | |
13 | PLANTS: |
This subclass is indented under the class definition. Systems combining means for generating heat at one place
and distributing it to other buildings, including mains or conduits
having no other apparent use than with these systems.
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14 | BROODER AND INCUBATOR: |
This subclass is indented under the class definition. Heating systems peculiarly adapted for subclasses 302+ and
311+ incubators and brooders.
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15 | . Water: |
This subclass is indented under subclass 14. Systems in which the heating medium is water.
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16 | COMBINED RADIATOR AND BOILER: |
This subclass is indented under the class definition. Heating systems comprising steam or water radiators combined
with a boiler in a unitary structure.
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17 | . Fluid fuel: |
This subclass is indented under subclass 16. Combined radiators and boilers heated by combustion of fluid fuel. | |
18 | . Solid fuel : |
This subclass is indented under subclass 16. Combined radiators and boilers heated by combustion of solid fuel. | |
19 | COMBINED WITH WATER HEATER: |
This subclass is indented under the class definition. Heating systems having means for heating the fluid used
in the system and also for additional volume of water.
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28 | VEHICLE: |
This subclass is indented under the class definition. Heating systems specialized for a vehicle.
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29 | . Stove: |
This subclass is indented under subclass 28. Vehicle-heating systems comprising stoves combined with
vehicle structure.
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30 | .. Air casing: |
This subclass is indented under subclass 29. Vehicle-heating stoves having a casing for heating the air.
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31 | .. Depending: |
This subclass is indented under subclass 29. Vehicle-heating systems comprising a stove depending from
the vehicle.
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32 | . Fluid fuel: |
This subclass is indented under subclass 28. Vehicle-heating systems utilizing a fluid-fuel burning apparatus.
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33 | .. Radiator: |
This subclass is indented under subclass 32. Vehicle-heating systems with a radiator through which the
products of combustion pass.
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34 | . Water: |
This subclass is indented under subclass 28. Vehicle-heating systems utilizing a hot water circulating
system.
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35 | .. Car boiler: |
This subclass is indented under subclass 34. Vehicle-heating systems having a boiler located on the vehicle and piping for heating and circulating water. | |
36 | ... Fluid fuel: |
This subclass is indented under subclass 35. Subject matter in which the boiler is heated by fluid fuel.
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37 | ... Train steam: |
This subclass is indented under subclass 35. Subject matter with additional means for heating the water by steam from the train pipe. | |
38 | .... Injected: |
This subclass is indented under subclass 37. Subject matter having means for injecting steam from the train pipe into the water circuit. | |
39 | .. Train steam: |
This subclass is indented under subclass 34. Subject matter having means for heating the water circuit by steam from the train pipe. | |
40 | . Steam: |
This subclass is indented under subclass 28. Heating systems utilizing steam radiators.
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41 | .. Car boiler: |
This subclass is indented under subclass 40. Steam heating systems in which the steam is formed in a boiler on the car. | |
42 | ... Train steam: |
This subclass is indented under subclass 41. Subject matter having also means whereby steam may be admitted to the radiators from the train pipe. | |
43 | . Heated floor: |
This subclass is indented under subclass 28. Heating systems in which the floor is heated from beneath,
as by steam, hot water, or hot air circulation.
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44 | . Heat accumulator: |
This subclass is indented under subclass 28. Heating systems comprising apparatus for storing heat on
the vehicle by heat absorbing bodies.
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45 | . Encased radiator: |
This subclass is indented under subclass 28. Heating systems comprising radiators in casings, through
which air may pass.
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69 | HEATED FLOOR: |
This subclass is indented under the class definition. Heating systems in which the room is heated by heated fluid
circulated within or beneath or caused to contact with the underside of
a floor.
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46 | VENTILATING: |
This subclass is indented under the class definition. Heating systems for rooms, chambers, or other enclosures
provided with means for removing air from the rooms.
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47 | . Stove: |
This subclass is indented under subclass 46. Ventilating heating-systems having a stove as a heater.
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48 | . Furnace: |
This subclass is indented under subclass 46. Ventilating heating-apparatus having a hot-air furnace as a heater. | |
49 | . Enclosed radiator: |
This subclass is indented under subclass 46. Ventilating heating apparatus having radiators enclosed
in an air flue.
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50 | AIR: |
This subclass is indented under the class definition. Heating systems in which air is heated directly by a combustion
apparatus and distributed.
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52 | . Stove: |
This subclass is indented under subclass 50. Air heating-systems having a stove as the source of heat.
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53 | . Furnace: |
This subclass is indented under subclass 50. Air heating-systems having a hot-air furnace as the source
of heat.
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54 | . Upper-room drum: |
This subclass is indented under subclass 50. Air heating-systems having a drum in an upper room of the building, through which products of combustion pass. | |
55 | . Flue heated: |
This subclass is indented under subclass 50. Air heating-systems ... in which the air is heated in a
smoke flue.
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56 | WATER: |
This subclass is indented under the class definition. Heating system in which the room or building is heated by
the circulation of water or some other liquid.
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57 | . Fluid fuel: |
This subclass is indented under subclass 56. Water heating-systems in which the water is heated by fluid fuel. | |
58 | . Steam: |
This subclass is indented under subclass 56. Water heating-systems where the water is heated by steam.
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59 | . Circulation: |
This subclass is indented under subclass 56. Water heating systems having special means for circulating
the heating liquid.
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60 | .. Geyser boiler: |
This subclass is indented under subclass 59. Subject matter in which the water is heated and forced out of a boiler by intermittent pulsations. | |
61 | .. Auxiliary boiler: |
This subclass is indented under subclass 59. Subject matter having an auxiliary boiler for aiding the
circulation.
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62 | .. Boiler loop: |
This subclass is indented under subclass 59. Subject matter in which only a part of the water is bypassed through a boiler. | |
63 | .. Pump: |
This subclass is indented under subclass 59. Subject matter having a pump for circulating the water. | |
64 | ... Steam displacing: |
This subclass is indented under subclass 63. Subject matter wherein the pump consists of a chamber where water enters and is forced out by means of steam pressure. | |
65 | . Pressure regulator: |
This subclass is indented under subclass 56. Water heating-systems with means for regulating or varying
the pressure on the circulating system.
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66 | . Expansion tanks: |
This subclass is indented under subclass 56. Tanks or chambers limited in use to provide for the expansion
of the water in the circulating pipes and radiators of water heating
systems.
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67 | STEAM: |
This subclass is indented under the class definition. Systems for heating buildings, rooms, or chambers by means
of steam circulating through conduits or passing through radiators.
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68 | . Air discharge: |
This subclass is indented under subclass 67. Steam heating systems with special means for removing the
incondensable gases in the system.
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70 | HEAT RADIATORS: |
This subclass is indented under the class definition. Hollow bodies of considerable surface area peculiarly adapted
to have a heating fluid passed through it and to radiate heat from
the surface. Radiators must be absolutely limited to heating purposes
by radiation in order to fall within this subclass and those indented
thereunder.
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71 | . Water, steam: |
This subclass is indented under subclass 70. Radiators adapted to contain water heated by steam.
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72 | .. Injected: |
This subclass is indented under subclass 71. Radiators containing water heated by steam either injected
into the water or heated by steam passing through conduits that
heat the water, the steam finally coming into contact with the water
in the radiator. These radiators may also be convertible as steam
radiators or water radiators heated by steam.
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73 | . Steam: |
This subclass is indented under subclass 70. Radiators limited to the use of steam as a heating fluid
and incapable of being used as a condenser for steam.
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74 | .. Circuit: |
This subclass is indented under subclass 73. Steam-heated radiators having injecting means for causing
a continued circulation of steam through or around within the radiator
or for injecting air into the radiator or for circulating water
therein.
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75 | .. Heat accumulator: |
This subclass is indented under subclass 73. Steam-heated radiators having either a liquid or solid therein
which absorb heat from the steam, stores it therein, and radiates
the heat after the steam is turned off.
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76 | . Ceramic: |
This subclass is indented under subclass 70. Radiators made in whole or in part of ceramic material (earthy
plastic) or natural stone.
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77 | . Foot warmer: |
This subclass is indented under subclass 70. Radiators with special features for warming the feet.
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78R | . Air moistener: |
This subclass is indented under subclass 70. Radiators combined with means for moistening the air or
air moistening apparatus necessitating its application to a radiator
when in use.
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78A | .. Casing |
This subclass has no definition. | |
78B | .. Radiator wick |
This subclass has no definition. | |
78C | .. From radiator valve |
This subclass has no definition. | |
79 | . Shields: |
This subclass is indented under subclass 70. Heat shields applied to radiators or air directors combined
with dust guards.
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80 | ANTIFREEZING DEVICES: |
This subclass is indented under the class definition. Devices for preventing freezing in heating conduits or other
hollow heaters or for thawing out heating conduits not provided
for in other classes.
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81 | PROCESSES: |
This subclass is indented under the class definition. Processes for heating houses, rooms, or other enclosures,
except processes involving automatic control.
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FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
This subclass has no definition. | |
DIG1 | INERT GAS |
This subclass has no definition. | |