US Patent Class 126
STOVES AND FURNACES



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Current as of: June, 1999
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  DF  CLASS NOTES
561  DF  SOLAR HEAT COLLECTOR FOR POND OR POOL
562  DF  .~ Including auxiliary source for adding heat to pool
563  DF  .~ Remotely located from pool
564  DF  .~ Within pool water
565  DF  .~ On pool water surface
566  DF  .~.~ Pool cover is collector
567  DF  .~ With means to extract heat from pond liquid
568  DF  .~ In contact with pond liquid
569  DF  SOLAR HEAT COLLECTOR
570  DF  .~ Having external damage preventer
571  DF  .~.~ Comprising movable support
572  DF  .~ With control means energized in response to actuator stimulated by condition sensor
573  DF  .~.~ Including sun position tracking sensor
574  DF  .~.~.~ With computer
575  DF  .~.~.~ With timer
576  DF  .~.~.~ With motor
577  DF  .~.~.~.~ With gear
578  DF  .~.~.~ Electronic sensor
579  DF  .~.~.~ Fluid expansion sensor
580  DF  .~.~.~.~ Gas
581  DF  .~.~.~ Solid expansion sensor
582  DF  .~.~.~ Phase change sensor
583  DF  .~.~ Of fluent medium
584  DF  .~.~.~ Pressure responsive
585  DF  .~.~.~ Temperature responsive
586  DF  .~.~.~.~ Set point control
587  DF  .~.~.~.~ Differential temperature control
588  DF  .~.~.~.~ Freezing prevention
589  DF  .~.~.~.~ Overheating prevention
590  DF  .~.~.~ Fluid level responsive
591  DF  .~.~.~ Of fluid flow
592  DF  .~.~.~.~ Liquid
593  DF  .~.~ Of collector
594  DF  .~.~.~ Pressure responsive
595  DF  .~.~.~ Temperature responsive
596  DF  .~.~.~.~ Set point control
597  DF  .~.~.~.~ Differential temperature control
598  DF  .~.~.~.~ Freezing prevention
599  DF  .~.~.~.~ Overheating prevention
600  DF  .~ With means to reposition solar collector for optimum radiation exposure
601  DF  .~.~ Computer
602  DF  .~.~ Timer
603  DF  .~.~.~ Electric
604  DF  .~.~ Having fluid power
605  DF  .~.~ Motor
606  DF  .~.~.~ Gearing
607  DF  .~.~ Gearing
608  DF  .~.~ Manual
609  DF  .~ With auxiliary heat source for fluent medium
610  DF  .~.~ In a tank
611  DF  .~.~ In a heat exchanger
612  DF  .~.~ In the collector
613  DF  .~.~ Heat pump
614  DF  .~.~ Fireplace
615  DF  .~.~ Water heater
616  DF  .~.~ Hot air furnace
617  DF  .~ With heat storage mass
618  DF  .~.~ Phase change
619  DF  .~.~ Specific chemical
620  DF  .~.~ Rocks or soil
621  DF  .~ Solar collector forms part of building roof
622  DF  .~.~ Solar collector includes roof shingles or tiles
623  DF  .~ Solar collector supported on existing roof structure
624  DF  .~ Rollable or foldable collector unit of nonrigid material
625  DF  .~.~ Fluent medium is gas
626  DF  .~.~ Fluent medium is water
627  DF  .~ Foldable collector unit of rigid material
628  DF  .~ Including means to utilize fluent medium from collector to heat interior of building
629  DF  .~.~ With device to circulate air from room of building through collector
630  DF  .~.~.~ Plural circulators
631  DF  .~.~.~ Circulator located in collector
632  DF  .~.~.~ Circulator located in building
633  DF  .~.~ With fluent medium passage in floor or wall of room
634  DF  .~ With means to convey fluent medium through collector
635  DF  .~.~ Having evaporator and condenser sections (e.g., heat pipe)
636  DF  .~.~.~ Particular fluid
637  DF  .~.~.~.~ Gas
638  DF  .~.~ Thermosyphonic fluid circulation
639  DF  .~.~.~ Liquid
640  DF  .~.~ With storage tank for fluent medium
641  DF  .~.~.~ Having heat exchanger within storage tank
642  DF  .~.~.~ Tank is heat exchanger
643  DF  .~.~ With heat exchanger
644  DF  .~.~.~ With solid phase change
645  DF  .~.~.~ With liquid phase change
646  DF  .~.~ Pump
647  DF  .~.~.~ Blower
648  DF  .~.~ With radiation trap
649  DF  .~.~.~ Plural traps
650  DF  .~.~.~ Particular material
651  DF  .~.~ Conduit absorber structure
652  DF  .~.~.~ Surrounded by transparent enclosure
653  DF  .~.~.~.~ Sealed chamber between enclosure and absorber contains vacuum promoter (e.g., getter)
654  DF  .~.~.~.~ Sealed chamber between enclosure and absorber contains gas for promoting heat transfer
655  DF  .~.~.~.~ Plurality of conduit absorbers
656  DF  .~.~.~.~ Axis of conduit is curved (e.g., helical or serpentine)
657  DF  .~.~.~.~ With reflector
658  DF  .~.~.~ Having heat-absorbing fin or plate
659  DF  .~.~.~.~ With fastener to secure fin to conduit
660  DF  .~.~.~.~ Plate integral with conduit
661  DF  .~.~.~.~ Plate surface with conduit secured thereto
662  DF  .~.~.~.~ Conduit positioned in a groove in the plate
663  DF  .~.~.~ Plural conduits
664  DF  .~.~.~.~ Noncircular conduit
665  DF  .~.~.~.~ Flexible conduit
666  DF  .~.~.~ Rectangular metallic conduit
667  DF  .~.~.~.~ Having internal partition
668  DF  .~.~.~ Rectangular nonmetallic conduit
669  DF  .~.~.~.~ Having internal partition
670  DF  .~.~.~ Circular metallic conduit
671  DF  .~.~.~.~ Having internal partition
672  DF  .~.~.~ Circular nonmetallic conduit
673  DF  .~.~.~.~ Having internal partition
674  DF  .~.~.~ Absorber having extended surface
675  DF  .~.~.~.~ Corrugated surface
676  DF  .~.~.~ Particular absorber material
677  DF  .~.~.~.~ Metal
678  DF  .~ Particular fluent medium including radiation absorbing material
679  DF  .~.~ Specific chemical
680  DF  .~ Energy concentrator with support for material heated
681  DF  .~.~ Solar oven
682  DF  .~.~.~ Having foldable energy concentrator
683  DF  .~ With concentrating reflector and concentrating lens
684  DF  .~ With concentrating reflector
685  DF  .~.~ Plural reflectors in optical series
686  DF  .~.~.~ Flat and curved
687  DF  .~.~.~ Flat
688  DF  .~.~ Spot focus
689  DF  .~.~.~ Spherical
690  DF  .~.~.~ Parabolic
691  DF  .~.~.~ Elliptical
692  DF  .~.~ Line focus
693  DF  .~.~.~ Circular
694  DF  .~.~.~ Parabolic
695  DF  .~.~.~ Elliptical
696  DF  .~.~ Reflector support
697  DF  .~.~ Inflatable reflector
698  DF  .~ With concentrating lens
699  DF  .~.~ Circular lens
700  DF  .~.~ Lens support
701  DF  .~ Controlling solar radiation
702  DF  .~.~ Interconnected slats (e.g., blinds, shutters)
703  DF  .~.~ Manual
704  DF  .~ Collector housing
705  DF  .~.~ Cover
706  DF  .~.~.~ Insulation
707  DF  .~.~.~ Plastic
708  DF  .~.~.~ Glass
709  DF  .~.~ Insulation
710  DF  .~.~ Particular material
711  DF  .~.~.~ Plastic
712  DF  .~.~.~ Glass
713  DF  .~.~.~ Metal
714  DF  PROCESS OF HEATING BY USING SOLAR HEAT
204  DF  BODY WARMERS
205  DF  .~ Bed heaters
207  DF  .~ Heated block
206  DF  .~ Composition fuel
208  DF  .~ Liquid or gaseous fuel
209  DF  .~.~ Combined heater and lantern
210  DF  .~.~ Water heater
401  DF  TOOL HAVING FLUID FUEL BURNER
402  DF  .~ Branding iron
403  DF  .~.~ Gas
404  DF  .~.~ Hydrocarbon reservoir
405  DF  .~ Burning tool
406  DF  .~.~ Gas
407  DF  .~.~ Hydrocarbon reservoir
408  DF  .~ Curling iron
409  DF  .~.~ Hydrocarbon reservoir
410  DF  .~ Roll heating type
411  DF  .~ Sadiron
412  DF  .~.~ Hydrocarbon reservoir
413  DF  .~ Soldering iron
414  DF  .~.~ Hydrocarbon reservoir
226  DF  TOOL HEATERS
236  DF  .~ Soldering iron
237  DF  .~.~ Gas heaters
238  DF  .~.~.~ Tool-controlled valve
239  DF  .~.~ Liquid fuel
240  DF  .~.~.~ Combined heater and solder pot
241  DF  .~.~.~ Lamp
229  DF  .~ Liquid or gaseous fuel
231  DF  .~.~ Gas burner attachments
232  DF  .~.~.~ Combined lighting and heating
233  DF  .~.~.~ Jet mixer
234  DF  .~.~.~ Tool-controlled valve
235  DF  .~.~ Lamp attachments
230  DF  .~.~ Flatiron
227  DF  .~ Flatiron
228  DF  .~.~ Attachments
284  DF  GLUE POTS
281  DF  DOUGH RAISERS
282  DF  .~ Lamp type
343.5 R  DF  MELTING FURNACES
343.5 A  DF  .~ Other than snow (asphalt, etc.)
19.5  DF  COMBUSTION ENGINE-HEATED COOKING STOVES, OVEN OR HEATING VESSELS
500  DF  FIREPLACES OR ACCESSORIES
501  DF  .~ Hopper feed of solid fuel
502  DF  .~ Condition responsive control
503  DF  .~.~ Of fluid fuel feed
504  DF  .~.~ Of flue damper
505  DF  .~ With article warming shelf on grate
506  DF  .~ With food cooker
507  DF  .~ With filter
508  DF  .~ With room humidifier
509  DF  .~ For heating plural rooms
510  DF  .~.~ Fireplace in dividing wall
511  DF  .~.~.~ Rotatable fire chamber
512  DF  .~ Fluid fuel
513  DF  .~ With liquid heater
514  DF  .~.~ And means conducting liquid to room heater
515  DF  .~ Inlet air supply from outside fireplace room
516  DF  .~.~ With air pump
517  DF  .~.~.~ And air flow regulator
518  DF  .~.~ With air flow regulator
519  DF  .~ Circular viewability of flame
520  DF  .~ Insertable into existing window
521  DF  .~ With air pump
522  DF  .~.~ Tubular heat exchanger
523  DF  .~ With heat exchanger for room heating air
524  DF  .~.~ Tubular
525  DF  .~.~.~ Secondary outlet leads air to flame
526  DF  .~.~.~ With air flow regulator
527  DF  .~.~ Secondary outlet leads air to flame
528  DF  .~.~ Air flow path between exterior surface of heat exchanger and facing building surface
529  DF  .~.~.~ And additional flow path through hollow walled heat exchanger
530  DF  .~.~.~ With air flow regulator
531  DF  .~.~ Hollow side walls in heat exchanger
532  DF  .~.~ With means facilitating ash removal
533  DF  .~.~ With air flow regulator
534  DF  .~.~.~ And adjustable flue damper
535  DF  .~.~ And adjustable flue damper
536  DF  .~ Adjustable flue damper
537  DF  .~.~ Screw operator
538  DF  .~.~ Variable predetermined positions
539  DF  .~.~ From exterior of front face of fireplace
540  DF  .~ Grate structure
541  DF  .~.~ Relatively movable parts
542  DF  .~.~.~ Including means facilitating ash removal
543  DF  .~.~.~.~ With removable ash pan
544  DF  .~ Front barrier or guard
545  DF  .~.~ With particular seal
546  DF  .~.~ Vertically adjustable
547  DF  .~.~ Solid front cover
548  DF  .~.~.~ And perforated screen
549  DF  .~.~.~ And auxiliary air flow adjuster
550  DF  .~.~ Smoke collecting hood
551  DF  .~.~ Screen slidable on track
552  DF  .~ Heat reflecting structure
553  DF  .~.~ Adjustable
554  DF  .~ With means facilitating ash removal
555  DF  .~.~ Removable ash pan
344  DF  WATER HEATERS
345  DF  .~ Kettle furnace
346  DF  .~.~ Canning
348  DF  .~.~ Steam generators and cookers
349  DF  .~.~ Tilting
347  DF  .~.~ Horizontal combustion chamber
369  DF  .~ Steaming apparatus
369.1  DF  .~.~ With additional heating fluid
369.2  DF  .~.~ Plural steam chambers
369.3  DF  .~.~.~ Selective supply
361  DF  .~ Stand boilers
362  DF  .~.~ Circulation
363  DF  .~.~ Supports
364  DF  .~ Stovepipe
365  DF  .~.~ Circulation
*  DD  .~ Submerged
367  DF  .~.~ Portable
366  DF  .~.~ Closed systems pipes
368  DF  .~.~ Stationary
373  DF  .~ Vessels
374  DF  .~.~ With automatic control
375  DF  .~.~ With heat accumulator
376  DF  .~.~ Fluid-heated
377  DF  .~.~.~ Steam- or water-heated
378  DF  .~.~.~.~ Closed chamber or coil
379  DF  .~.~.~.~ Jet
380  DF  .~.~ With liquid supply
381  DF  .~.~ With condenser
382  DF  .~.~.~ Condensing liquid
383  DF  .~.~ Overflow directors or receptors
384  DF  .~.~.~ In vessel closure
385  DF  .~.~.~ Annular receptor
386  DF  .~.~.~.~ With return
387  DF  .~.~ With heat-type agitator or circulator
388  DF  .~.~ With signal or indicator
389  DF  .~.~ With vent passage
390  DF  .~.~ Heating-surface construction and arrangement
391  DF  .~.~.~ Fire tube type
392  DF  .~.~.~ Water tube type
350 R  DF  .~ Liquid and gaseous fuel
351  DF  .~.~ Automatic
355  DF  .~.~ Drip plate
357  DF  .~.~ Hinged or separable
358  DF  .~.~ Lamp type
359  DF  .~.~ Overflow
360 R  DF  .~.~ Submerged
360 A  DF  .~.~.~ Submerged flame
350 A  DF  .~.~ Automobile radiator heater
350 B  DF  .~.~ Vaporizers and humidifiers
350 C  DF  .~.~ Washing machines
350 D  DF  .~.~ Shower bath
*  DD  HEATERS
263.01  DF  .~ Chemical
263.02  DF  .~.~ Oxidation with air
263.03  DF  .~.~ Crystallization of supercooled liquid
263.04  DF  .~.~.~ By escape of reactant from container within liquid
263.05  DF  .~.~ Liquid in contact with solid (e.g., water and lime)
263.06  DF  .~.~.~ Including separate solid and liquid compartments
263.07  DF  .~.~.~.~ Flexible wall compartment (e.g., flexible plastic bag)
263.08  DF  .~.~.~.~.~ Including means to rupture or open solid or liquid compartment
263.09  DF  .~.~.~.~ Including means to rupture or open solid or liquid compartment
263.1  DF  .~.~.~.~ Including time release coating on solid in contact with liquid
246  DF  .~ Dish
269  DF  .~ Powder
261  DF  .~ Lunch
268  DF  .~.~ Wagon
265  DF  .~.~ Liquid or gaseous fuel
266  DF  .~.~.~ Dinner buckets
267  DF  .~.~.~.~ Combined bucket and lantern
262  DF  .~.~ Combined can and heater
271.1  DF  .~ Surface
271.2 R  DF  .~.~ Fluid fuel
271.2 A  DF  .~.~.~ Pavement heaters
271.2 B  DF  .~.~.~ Switch heaters
271.2 C  DF  .~.~.~ Machine open burners
271.3  DF  .~.~ Solid fuel
247  DF  .~ Frictional
*  DD  .~ Liquid or gaseous fuel
*  DD  .~.~ Attachments
248  DF  .~.~.~ Drum
249  DF  .~.~.~ Gas jet
254  DF  .~.~.~.~ Combined
252  DF  .~.~.~.~ Article support
253  DF  .~.~.~.~.~ Jet mixer
250  DF  .~.~.~.~ Air
251  DF  .~.~.~.~.~ Jet mixer
255  DF  .~.~.~ Lamp
*  DD  .~.~.~.~ Chimney heaters
258  DF  .~.~.~.~.~ Article support
257  DF  .~.~.~.~.~ Air
*  DD  .~.~.~.~ Stands
260  DF  .~.~.~.~.~ Article support
259 R  DF  .~.~.~.~.~ Air heaters
259 M  DF  .~.~.~.~.~.~ Drums, mufflers and heat exchangers
256  DF  .~.~.~.~ Article support
*  DD  TRASH BURNERS
222  DF  .~ Cooking stoves
223  DF  .~.~ Feeding attachments
225  DF  .~ Heating stoves
224  DF  .~ Domestic-refuse burners
99 R  DF  HOT-AIR FURNACES
100  DF  .~ Combined with cooking stove
101  DF  .~ Combined with boiler
110 R  DF  .~ Compressed air
110 A  DF  .~.~ Blower and air damper
110 AA  DF  .~.~ Downflow of air being heated
110 B  DF  .~.~ Unit heaters
110 C  DF  .~.~ Gas and air mixing
110 D  DF  .~.~ Unitary fan and heater
110 E  DF  .~.~ Thermally actuated air-propelling means
111  DF  .~ Double fire pot
116 R  DF  .~ Liquid or gaseous fuel
116 A  DF  .~.~ Automatic control
116 B  DF  .~.~ Floor and wall furnaces
116 C  DF  .~.~ Electric auxiliary
117  DF  .~ Preliminary air heater
106  DF  .~ Internal air chamber
108  DF  .~ Secondary heating chamber horizontally arranged
109  DF  .~ Tubular air heater
107  DF  .~ Magazine
104 R  DF  .~ Horizontal combustion chamber
104 A  DF  .~.~ Blowers
102  DF  .~ Circular radiating drum
103  DF  .~ Downdraft
112  DF  .~ Feeding air
113  DF  .~ Air moisteners
114  DF  .~ Casings
115  DF  .~ Dust flue
105 R  DF  .~ Hot-air equalizers
105 A  DF  .~.~ Fan in casing top
118  DF  .~ Radiating flanges
119  DF  .~ Joints
99 P  DF  .~ Pipeless
99 A  DF  .~ Tubular heater
99 C  DF  .~ Helical passages
99 D  DF  .~ Air baffles
*  DD  STOVES
1 R  DF  .~ Cooking
24  DF  .~.~ Ship's galley
25 R  DF  .~.~ Summer
29  DF  .~.~.~ Field
30  DF  .~.~.~.~ Supporting frame
27  DF  .~.~.~ Stove top-supported
28  DF  .~.~.~.~ Stove flue-connected
26  DF  .~.~.~ Detachable fire pot
25 A  DF  .~.~.~ Variable distance from heat source
25 AA  DF  .~.~.~ Rotating and elevating
25 B  DF  .~.~.~ Igniting
25 C  DF  .~.~.~ Extinguishing
9 R  DF  .~.~ Knockdown or separable
9 A  DF  .~.~.~ Disposable units
9 B  DF  .~.~.~ Knockdown elements
4  DF  .~.~ Combined cooking and heating stove
5  DF  .~.~.~ Steam or water generators
6  DF  .~.~.~ Air-heating
7  DF  .~.~.~ Magazine
8  DF  .~.~ Brick set
23  DF  .~.~ Reversible
2  DF  .~.~ Double fire pot
3  DF  .~.~.~ Cooking and heating
10  DF  .~.~ Magazine
11  DF  .~.~.~ Portable
33  DF  .~.~ Tables, steam-heated
55  DF  .~.~ Combined base and hot closet
*  DD  .~.~ Liquid or gaseous fuel
38  DF  .~.~.~ Folding or nesting kit
37 R  DF  .~.~.~ Cabinet
37 A  DF  .~.~.~.~ Top cover plate
37 B  DF  .~.~.~.~ Slidable, fold, or swingable
36  DF  .~.~.~ Combined coal and gas
52  DF  .~.~.~ Valve mechanism, article-controlled
53  DF  .~.~.~ Water backs
54  DF  .~.~.~.~ Combined burner and water back
39 R  DF  .~.~.~ Gas
41 R  DF  .~.~.~.~ Broilers
41 A  DF  .~.~.~.~.~ Rotary-vertical axis
41 B  DF  .~.~.~.~.~ Rotary-horizontal axis
41 C  DF  .~.~.~.~.~ Endless chain
41 D  DF  .~.~.~.~.~ Drawer
41 E  DF  .~.~.~.~.~ Drawer-elevating
40  DF  .~.~.~.~ Burner stands
42  DF  .~.~.~.~ Safety attachments
39 A  DF  .~.~.~.~ Heating kitchen
39 B  DF  .~.~.~.~ Frame structure
39 BA  DF  .~.~.~.~ Electric features
39 C  DF  .~.~.~.~ Miscellaneous ovens
39 D  DF  .~.~.~.~ Indirectly heated
39 E  DF  .~.~.~.~ Burners and lighters
39 F  DF  .~.~.~.~ Fireless cookers
39 G  DF  .~.~.~.~ Thermostatic control
39 H  DF  .~.~.~.~ Hot plates
39 N  DF  .~.~.~.~ Hot plates, front plates, valve and manifold
39 J  DF  .~.~.~.~ Hot plates with radiants
39 K  DF  .~.~.~.~ Hot plates, air feed, and flame shields
39 L  DF  .~.~.~.~ Rotating stove
39 M  DF  .~.~.~.~ Removable liner
*  DD  .~.~.~ Liquid
43  DF  .~.~.~.~ Alcohol
44  DF  .~.~.~.~ Vapor
45  DF  .~.~.~.~ Wick
46  DF  .~.~.~.~.~ Extension top
47  DF  .~.~.~.~.~ Lamp type
48  DF  .~.~.~.~.~.~ Combined top, chimney and burner
49  DF  .~.~.~.~.~ Reservoir supporting top and burner
51  DF  .~.~.~.~ Drip pan or receptacle
50  DF  .~.~.~ Supporting frame
15 R  DF  .~.~ Feeding air
15 A  DF  .~.~.~ Forced air
16  DF  .~.~ Flue cleaners
*  DD  .~.~ Elevated ovens
17  DF  .~.~.~ Smoke pipe-heated
18  DF  .~.~.~ Top plate-supported
19 R  DF  .~.~ Ovens
20  DF  .~.~.~ Steam or hot water
20.1  DF  .~.~.~.~ Plural
20.2  DF  .~.~.~.~.~ Selective supply
21 R  DF  .~.~.~ Ventilated
21 A  DF  .~.~.~.~ Forced circulation
22  DF  .~.~.~ Protector plate
19 M  DF  .~.~.~ Movable ovens
34  DF  .~.~ Water backs
35  DF  .~.~.~ Safety devices
*  DD  .~.~ Water-heating
31  DF  .~.~.~ Flue extension
12  DF  .~.~ Hearths
13  DF  .~.~.~ Fire pot
14  DF  .~.~ Broiling attachments
32  DF  .~.~ Spittoon attachments
1 A  DF  .~.~ Side oven
1 AA  DF  .~.~ Wall in common
1 AB  DF  .~.~ Wall separate
1 AC  DF  .~.~ Wall laterally spaced
1 AD  DF  .~.~ Wall lateral air feed
1 AE  DF  .~.~ Wall lateral gas passage
1 B  DF  .~.~ Side and superimposed oven
1 C  DF  .~.~ Side and underlying oven
1 D  DF  .~.~ Superimposed oven
1 E  DF  .~.~ Underlying oven
1 F  DF  .~.~ Insulation
56  DF  .~ Car
57  DF  .~.~ Protective casings
58  DF  .~ Heating
59  DF  .~.~ Camp
59.5  DF  .~.~ Orchard
60  DF  .~.~ Horizontal body
61  DF  .~.~.~ Hot air
64  DF  .~.~ Panel
65  DF  .~.~ Sheet metal
66  DF  .~.~.~ Hot air
79  DF  .~.~ Smoke and gas returning
*  DD  .~.~ Liquid or gaseous fuel
84  DF  .~.~.~ Combined heating and ventilating
85 R  DF  .~.~.~ Gas
91 R  DF  .~.~.~.~ Radiator type
91 A  DF  .~.~.~.~.~ Elongated radiant tube
86  DF  .~.~.~.~ Open front
87  DF  .~.~.~.~.~ Asbestos fireback
88  DF  .~.~.~.~.~.~ Hot air
89  DF  .~.~.~.~.~ Hot air
90 R  DF  .~.~.~.~ Hot air
90 A  DF  .~.~.~.~.~ Electric heater
92 R  DF  .~.~.~.~ Incandescent fire grate
92 AC  DF  .~.~.~.~.~ Radiant
92 A  DF  .~.~.~.~.~ Electric radiant
92 B  DF  .~.~.~.~.~ Radiant with reflector
92 C  DF  .~.~.~.~.~ Radiant enclosed by furnace shell
85 A  DF  .~.~.~.~ Brooder stoves
85 B  DF  .~.~.~.~ Connected to outside
93  DF  .~.~.~ Liquid
94  DF  .~.~.~.~ Flue-connected
95  DF  .~.~.~.~ Vapor
96  DF  .~.~.~.~ Wick
97  DF  .~.~.~.~.~ Heating and illuminating
67  DF  .~.~ Hot air
68  DF  .~.~.~ Magazine
69  DF  .~.~.~ Revertible draft, base-heating
72  DF  .~.~.~ Tubular air heaters
70  DF  .~.~.~ Internal air chamber
71  DF  .~.~.~ Central air tube
73  DF  .~.~ Magazine
74  DF  .~.~.~ Revertible draft, base-heating
75  DF  .~.~ Revertible draft, base-heating
76  DF  .~.~ Downdraft
77  DF  .~.~ Feeding air
78  DF  .~.~ Feeding steam
80  DF  .~.~ Ventilating attachments
81  DF  .~.~ Stove plates
82  DF  .~.~ Adjustable pipe collar
83  DF  .~.~ Deflector plate
98  DF  .~.~ Joints
*  DD  OVENS
273 R  DF  .~ Domestic
273.5  DF  .~.~ With heat accumulator, e.g., fireless
274  DF  .~.~ Dutch
275 R  DF  .~.~ Portable
275 E  DF  .~.~.~ Electric
273 A  DF  .~.~ Wall-mounted
276  DF  .~ Wagon
144  DF  FIRE POTS AND LININGS
*  DD  .~ Rotary
149  DF  .~.~ Horizontal axis
150  DF  .~.~ Vertical axis
145  DF  .~ Adjustable
146  DF  .~ Feeding air
147  DF  .~ Divided
151  DF  .~ Sectional
148  DF  .~ Fire plate
242  DF  ASH DISCHARGE AND COLLECTING
245  DF  .~ Combined stove and ash pan
243  DF  .~ Ash pans
244  DF  .~.~ Sifting
211  DF  STOVE LIDS AND TOPS
217  DF  .~ Heating stove
218  DF  .~.~ Cooking attachments
219  DF  .~.~ Ornaments and urns
213  DF  .~ Illuminating
214 R  DF  .~ Liquid or gaseous fuel
215  DF  .~.~ Elevating support
216  DF  .~.~ Extension top
214 A  DF  .~.~ Units mounted in counter top
214 B  DF  .~.~ Buck panel structure
214 C  DF  .~.~ Top grid
214 D  DF  .~.~ Shields and deflectors
212  DF  .~ Centers or cross pieces
220  DF  .~ Lids
221  DF  .~ Stove mats
400  DF  HEAT ACCUMULATOR STRUCTURES
190  DF  STOVE DOORS AND WINDOWS
198  DF  .~ Oven doors, ventilating
193  DF  .~ Feeding air
191  DF  .~ Balanced
*  DD  .~ Latches
197  DF  .~.~ Combined latch and operator
192  DF  .~ Door-operator
194  DF  .~ Hinges
200  DF  .~ Transparent panel
332  DF  STOVE SHELVES
337 R  DF  .~ Oven shelf or rack
338  DF  .~.~ Rotary
339  DF  .~.~ Sliding
340  DF  .~.~.~ Door-operated
337 A  DF  .~.~ Shelf-adjusting
334  DF  .~ Drop
335  DF  .~.~ Door-operated
333  DF  .~ Brackets or stands
285 R  DF  DAMPERS
285.5  DF  .~ Timer-controlled
286  DF  .~ Distance operating devices
287  DF  .~.~ Door-operated
287.5  DF  .~ Fusible release
289  DF  .~ Stove
290  DF  .~.~ Draft
291  DF  .~.~ Repair
292  DF  .~ Stovepipe
293  DF  .~.~ Combined damper and ventilator
295  DF  .~.~ Lock and indicator
296  DF  .~.~ Multiple
297  DF  .~.~ Sinuous passage
294  DF  .~.~ Cone
285 A  DF  .~ Slide
285 B  DF  .~ Electric
152 R  DF  GRATES
163 R  DF  .~ Feeding air
163 A  DF  .~.~ Auxiliary grate
153  DF  .~ Adjustable
154  DF  .~.~ Vertically
160  DF  .~ Closures
166  DF  .~ Fuel cut-off
161  DF  .~ Cut-off
*  DD  .~ Rotary
181  DF  .~.~ Horizontal axis
182  DF  .~.~ Vertical axis
*  DD  .~ OSCILLATORY
170  DF  .~.~ Vertical axis
171  DF  .~.~.~ Dumping section
172  DF  .~.~.~ Sliding section
176 R  DF  .~ Rocking bar
177  DF  .~.~ Dumping
178  DF  .~.~ Duplex
179  DF  .~.~ Grate bar
180  DF  .~.~.~ Removing fuel support
176 A  DF  .~.~ Detachable shaker arms
174  DF  .~ Reciprocating
175  DF  .~.~ Alternate bar
155  DF  .~ Agitating
159  DF  .~.~ Pocket
158  DF  .~.~ Dumping
156  DF  .~.~ Alternate ends
157  DF  .~.~ Alternate bar
162  DF  .~ Dumping
167  DF  .~ Grate bar
168  DF  .~.~ Removable fuel support
169  DF  .~ Operating mechanism
173  DF  .~ Raking attachments
152 A  DF  .~ Reinforcements
152 B  DF  .~ Special features
299 R  DF  STOVE HOODS
300  DF  .~ Stove discharge
301  DF  .~ Stovepipe discharge
302  DF  .~.~ Stove casing
303  DF  .~.~ Top plate casing
299 C  DF  .~ Splatter shields
299 D  DF  .~ Stove surface ventilation only
299 E  DF  .~.~ Including liquid contact
299 F  DF  .~ Smoke eliminators and flue deflectors
307 R  DF  STOVEPIPES
312  DF  .~ Ventilation
313  DF  .~ Air-moistening attachments
307 A  DF  .~ Back draft diverter
314  DF  STOVEPIPE THIMBLES
316  DF  .~ Combined thimble and ventilator
315  DF  .~ Adjustable flue collar
318  DF  .~ Stovepipe anchor or lock
319  DF  .~ Flue stoppers
317  DF  .~ Floor or ceiling plates
280  DF  SOOT CATCHERS
201  DF  FENDERS
298  DF  FIRE DOGS
277  DF  PLATFORMS
278  DF  .~ Stove boards
279  DF  .~ Ventilating
304 R  DF  STOVE LEGS
305  DF  .~ Base supports
306  DF  .~ Sheet metal
304 A  DF  .~ Adjustable legs
283  DF  FUEL BOXES
******************************
CROSS-REFERENCE ART COLLECTIONS
******************************
903  DF  SOLAR COLLECTOR CLEANING DEVICE
904  DF  ARRANGEMENTS FOR SEALING SOLAR COLLECTOR
905  DF  PREVENTING CONDENSING OF MOISTURE IN SOLAR COLLECTOR
906  DF  CONNECTING PLURAL SOLAR COLLECTORS AS A UNIT
907  DF  ABSORBER COATING
908  DF  .~ Particular chemical
909  DF  LINEAR CONCENTRATING LENS
910  DF  HEAT STORAGE LIQUID