Patents for F24H 9 - Details (27,146) |
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07/26/1977 | US4037582 Oil stove |
07/19/1977 | US4037080 Protection and control of electric immersion-type heater |
07/12/1977 | US4034911 Burner control system |
07/12/1977 | US4034803 Corrosion resistant tubular air preheater |
07/05/1977 | US4033714 Gaseous fuel burners |
06/28/1977 | US4032748 Scale deposit removal arrangement for electric water heaters and vaporizers |
06/28/1977 | US4031916 Fitting for a radiator in a single duct heating system |
06/14/1977 | US4029937 Control system for electrically conductive liquid heating apparatus |
06/14/1977 | US4029451 Gas burning apparatus |
05/24/1977 | US4025291 Energy conversion system |
05/24/1977 | US4025286 Apparatus for improving the operation of oil-fired boilers |
05/24/1977 | US4025041 Safety valve |
05/17/1977 | US4023923 Burner for heating an airstream |
05/10/1977 | US4022163 Boiler using combustible fluid |
05/03/1977 | US4020822 Multi-fuel forced air furnace |
05/03/1977 | US4020772 Process to protect process heater casing from corrosion |
04/26/1977 | US4019492 Method and apparatus for automatic furnace |
04/19/1977 | US4018982 Housing structure for electrical apparatus |
04/12/1977 | US4017714 Segmented sacrificial anode attachment to water heating element |
04/05/1977 | US4016402 Water heater control system |
03/29/1977 | US4014316 Systems for heating fluids |
02/15/1977 | US4007726 Forced air assembly for space heater |
02/15/1977 | US4007712 Water heater |
01/11/1977 | US4002872 Electrical switch housing detachably mountable on a gas valve structure |
01/11/1977 | US4002148 Grate assembly for a boiler |
01/04/1977 | US4001547 Electric heating elements |
01/04/1977 | US4000735 Insert for the furnaces of boilers |
11/30/1976 | US3994098 Apparatus for regulating the lapping pressure during lapping of two bevel gears in a lapping machine |
11/16/1976 | US3992608 Combination attachment for water heater electric heating element and thermostat |
11/16/1976 | US3992137 Gas burner |
11/02/1976 | US3989928 Method and apparatus for cyclically controlling the energization of home water heaters |
09/28/1976 | US3982525 Hot air furnace |
09/21/1976 | US3981316 Pressure and temperature-responsive control means |
08/17/1976 | US3975620 Control system for charging and discharging an electric storage heater |
07/20/1976 | US3970142 Fuel saving device |
06/01/1976 | US3961156 Combination temperature and pressure relief valve with energy cutoff switch |
05/11/1976 | US3955909 Reduction of gaseous pollutants in combustion flue gas |
05/11/1976 | US3955556 Catalytic fluid heater |
04/06/1976 | US3948439 Sediment buildup warning device for water heaters |
03/02/1976 | US3940837 Hot air furnace with improved heat exchanger construction |
02/17/1976 | US3939456 Heating plant monitor system |
02/03/1976 | US3935855 Air heater, especially for connection to a central heating system |
01/27/1976 | US3934796 Heating system with fuel saving draft retarder |
01/27/1976 | US3934556 Boiler using combustible fluid |
01/27/1976 | US3934555 Boiler using combustible fluid |
01/20/1976 | US3934117 Electric fluid heating device |