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![[Search a list of Patent Appplications for class 431]](../as.gif) Class 431 | COMBUSTION |
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![[List of Patents for class 431 subclass 1]](../ps.gif) | 1 | COMBUSTION BURSTS OR FLARE-UPS IN PULSES OR SERIAL PATTERN |
| | 2 | PROCESS OF COMBUSTION OR BURNER OPERATION |
| | 3 |  Decarbonizing, cleaning or purging |
| | 4 | Feeding flame modifying additive |
| | 5 | Burning waste gas, e.g., furnace gas, etc. |
| | 6 | Starting or shutdown procedure |
| | 7 | In a porous body or bed, e.g., surface combustion, etc. |
| | 8 | Flame shaping, or distributing components in combustion zone |
| | 9 |  Whirling, recycling material, or reversing flow in an enclosed flame zone |
| | 10 | Oxidizer added to region of incomplete combustion |
| | 11 | Heating feed |
| | 12 | Controlling or proportioning feed |
| | 13 | WITH INDICATOR OR INSPECTION MEANS |
| | 14 | Correlated with action of condition responsive burner control |
| | 17 | Burner component position indicator |
| | 18 | TIMER, PROGRAMMER, RETARDER OR CONDITION RESPONSIVE CONTROL |
| | 19 | Responsive to combustion chamber pressure |
| | 20 | Of or by exhaust damper or exhaust pump |
| | 21 | By combustion destructible element, e.g., fusible plug, etc. |
| | 22 | By sensing of gas leakage, flashback or escaped flame |
| | 23 | Of means protecting burner component from combustion heat |
| | 24 | With test circuit checking or analyzing flame sensing circuit for malfunction |
| | 25 | Utilizing unidirectional electrical conducting effect of flame |
| | 26 | Test circuit activated, then inactivated in starting |
| | 27 | Providing repeated start attempts prior to shutdown upon failure to establish combustion |
| | 28 | Actuation sequence of electric feed heater and feed flow controller or igniter |
| | 29 | Control of purger, of scavenger or of combustion start-up delay period |
| | 32 | Of cleaning means |
| | 33 | Of extinguishing means |
| | 36 | Of or by burner feed supply heating structure |
| | 37 | By controlling admittance of feed to structure |
| | 38 |  By pressure of feed in structure |
| | 39 | By level of liquid feed in structure |
| | 40 | By linear expansion of feed holder |
| | 41 | Supply of heat to heating structure controlled |
| | 42 | Sensor of first burner controls second burner, e.g., pilot and main, etc. |
| | 43 | With electrical igniter |
| | 44 | Igniter deenergized by fuel pressure variation in start effort |
| | 45 | Igniter deenergized by timer, programmer or retarder |
| | 46 | Igniter deenergization responsive to first burner ignition |
| | 47 | With manual igniter actuation |
| | 48 | Sensor of second burner controls third burner |
| | 49 | And an igniting burner for first burner |
| | 50 | Sensing of flame at both burners required for continued operation of second burner |
| | 51 | Both burners cut off upon sensed extinguishment of first burner |
| | 52 | First burner manual reset valve cut off |
| | 53 |  Single valve cuts off branched flow |
| | 54 |  Reset includes structure preventing feed to second burner prior to sensed combustion at first burner |
| | 55 | Burners independently controlled by reset valves |
| | 56 | Having cut-off valve by-pass or additional supply to first burner |
| | 57 | Manual reset of second burner required upon first burner extinguishment |
| | 58 | Sensor controls diaphragm motor of second burner valve |
| | 59 | Electrical or magnetic sensor controls second burner |
| | 60 | Of sequential operation of plural burners, e.g., pilot and main, etc. |
| | 62 | Of diverse feed or feed rate in starting, e.g., enriching fuel mixture in starting, etc. |
| | 64 | Level responsive means controls fuel level in wick pot or pot type burner |
| | 65 | Fuel feed cut off by collected fuel over-flow |
| | 66 | Sensor of electrical condition or temperature of electrical igniter controls fuel feed |
| | 67 | Igniter heat up and fuel feed sequence controlled by timer or retarder |
| | 68 | Sensing of hot combustion zone condition blocks restart attempt |
| | 69 | Shutdown by sensed absence of flame in proving period |
| | 70 | Recycle through proving period on sensing of failure of established flame |
| | 71 | Igniter cut off when flame establishment proved |
| | 72 | Of igniter and feed controlled sequence |
| | 75 | By combustion or combustion zone sensor |
| | 76 | Combustion product composition sensor |
| | 77 | Of shutdown by response to sensed combustion failure or overheat |
| | 86 | By manually started timer or retarder, or by time of day device |
| | 88 | By tilting, jarring, or mechanical damage |
| | 89 | By condition of burner feed or feed means |
| | 91 | PROJECTOR AND IGNITER FOR LIQUID OR GELLED FUEL SLUG OR ROD, E.G., FLAME THROWER, ETC. |
| | 357 | ILLUMINATING FLASH DEVICE, E.G., PHOTOGRAPHIC BULB, ETC. |
| | 358 | Fuel charge within sealed transparent casing, e.g., bulb |
| | 359 | Plurality of bulbs associated for sequential ignition |
| | 360 | Coated casing |
| | 361 | Percussive ignition means ignites charge |
| | 362 | Electrically ignited primer ignites charge |
| | 363 | Having fuel charge feeding means |
| | 364 | Having protective shield |
| | 365 | Electrical means ignites charge |
| | 99 | MAGNESIUM STRIP |
| | 100 | INCANDESCENT MANTLE |