USPC Patent Classifications

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Class 122 liquid heaters and vaporizers
uspcdescription
122/1R122 liquid heaters and vaporizers/(1r) plants
122/2122 liquid heaters and vaporizers/(1r) plants (2) garbage
122/3122 liquid heaters and vaporizers/(1r) plants (3) motor vehicle
122/1A122 liquid heaters and vaporizers/(1r) plants (1a) air heaters
122/1B122 liquid heaters and vaporizers/(1r) plants (1b) once through
122/1C122 liquid heaters and vaporizers/(1r) plants (1c) feed water heaters
122/4R122 liquid heaters and vaporizers/(4r) miscellaneous
122/4A122 liquid heaters and vaporizers/(4r) miscellaneous (4a) electric boiler
122/4C122 liquid heaters and vaporizers/(4r) miscellaneous (4c) water-cooled stoker
122/4D122 liquid heaters and vaporizers/(4r) miscellaneous (4d) catalyst
122/5122 liquid heaters and vaporizers/(5) gas-producer
122/5.51122 liquid heaters and vaporizers/(5.51) air-injected
122/5.52122 liquid heaters and vaporizers/(5.51) air-injected (5.52) combustion gas and vapor contact
122/6R122 liquid heaters and vaporizers/(6r) industrial
122/6.5122 liquid heaters and vaporizers/(6r) industrial (6.5) port
122/6.6122 liquid heaters and vaporizers/(6r) industrial (6.6) tuyeres
122/6.7122 liquid heaters and vaporizers/(6r) industrial (6.6) tuyeres (6.7) forge
122/7R122 liquid heaters and vaporizers/(6r) industrial (7r) waste heat
122/7A122 liquid heaters and vaporizers/(6r) industrial (7r) waste heat (7a) steel converter
122/7B122 liquid heaters and vaporizers/(6r) industrial (7r) waste heat (7b) additional burner
122/7C122 liquid heaters and vaporizers/(6r) industrial (7r) waste heat (7c) waste sulfite
122/7D122 liquid heaters and vaporizers/(6r) industrial (7r) waste heat (7d) carbon monoxide
122/8122 liquid heaters and vaporizers/(6r) industrial (8) water firebox
122/9122 liquid heaters and vaporizers/(6r) industrial (8) water firebox (9) water tube type
122/6A122 liquid heaters and vaporizers/(6r) industrial (6a) water-cooled walls
122/6B122 liquid heaters and vaporizers/(6r) industrial (6b) bosh plates
122/6C122 liquid heaters and vaporizers/(6r) industrial (6c) skew arch coolers
122/10122 liquid heaters and vaporizers/(10) for fluid fuel burner
122/11122 liquid heaters and vaporizers/(11) rotary
122/12122 liquid heaters and vaporizers/(12) rotatably supported
122/13.01122 liquid heaters and vaporizers/(13.01) stand boiler (e.g., water heater, etc.)
122/13.3122 liquid heaters and vaporizers/(13.01) stand boiler (e.g., water heater, etc.) (13.3) and delivery means to dispensing feature
122/14.1122 liquid heaters and vaporizers/(13.01) stand boiler (e.g., water heater, etc.) (14.1) and condition responsive feature
122/14.2122 liquid heaters and vaporizers/(13.01) stand boiler (e.g., water heater, etc.) (14.1) and condition responsive feature (14.2) controls burner
122/14.21122 liquid heaters and vaporizers/(13.01) stand boiler (e.g., water heater, etc.) (14.1) and condition responsive feature (14.2) controls burner (14.21) by other than temperature of water
122/14.22122 liquid heaters and vaporizers/(13.01) stand boiler (e.g., water heater, etc.) (14.1) and condition responsive feature (14.2) controls burner (14.22) by temperature of water in a water containing chamber or external tank
122/14.3122 liquid heaters and vaporizers/(13.01) stand boiler (e.g., water heater, etc.) (14.1) and condition responsive feature (14.3) having water flow control feature
122/14.31122 liquid heaters and vaporizers/(13.01) stand boiler (e.g., water heater, etc.) (14.1) and condition responsive feature (14.3) having water flow control feature (14.31) using valve actuated by flow or pressure (e.g., check valve, etc.)
122/15.1122 liquid heaters and vaporizers/(13.01) stand boiler (e.g., water heater, etc.) (15.1) heated by liquid or steam (e.g., indirect heating, etc.)
122/16.1122 liquid heaters and vaporizers/(13.01) stand boiler (e.g., water heater, etc.) (16.1) solid fuel burner
122/17.1122 liquid heaters and vaporizers/(13.01) stand boiler (e.g., water heater, etc.) (17.1) fluid fuel burner
122/17.2122 liquid heaters and vaporizers/(13.01) stand boiler (e.g., water heater, etc.) (17.1) fluid fuel burner (17.2) liquid fuel burner
122/18.1122 liquid heaters and vaporizers/(13.01) stand boiler (e.g., water heater, etc.) (17.1) fluid fuel burner (18.1) having heat exchange feature
122/18.2122 liquid heaters and vaporizers/(13.01) stand boiler (e.g., water heater, etc.) (17.1) fluid fuel burner (18.1) having heat exchange feature (18.2) preheater
122/18.3122 liquid heaters and vaporizers/(13.01) stand boiler (e.g., water heater, etc.) (17.1) fluid fuel burner (18.1) having heat exchange feature (18.3) fire tube or flue surrounded by water containing chamber
122/18.31122 liquid heaters and vaporizers/(13.01) stand boiler (e.g., water heater, etc.) (17.1) fluid fuel burner (18.1) having heat exchange feature (18.3) fire tube or flue surrounded by water containing chamber (18.31) penetrates one side of water chamber to another
122/18.4122 liquid heaters and vaporizers/(13.01) stand boiler (e.g., water heater, etc.) (17.1) fluid fuel burner (18.1) having heat exchange feature (18.4) water tube surrounded by burned fuel
122/18.5122 liquid heaters and vaporizers/(13.01) stand boiler (e.g., water heater, etc.) (17.1) fluid fuel burner (18.5) and external water tank
122/19.1122 liquid heaters and vaporizers/(13.01) stand boiler (e.g., water heater, etc.) (19.1) water containing chamber or external tank having circulation feature within
122/19.2122 liquid heaters and vaporizers/(13.01) stand boiler (e.g., water heater, etc.) (19.2) and casing feature for stand boiler or external water tank therefor
122/20R122 liquid heaters and vaporizers/(20r) subsidiary
122/20A122 liquid heaters and vaporizers/(20r) subsidiary (20a) subsidiary-heater firebox
122/20B122 liquid heaters and vaporizers/(20r) subsidiary (20b) subsidiary-heater offtake flue
122/29122 liquid heaters and vaporizers/(29) annular firebox
122/30122 liquid heaters and vaporizers/(30) magazine
122/32122 liquid heaters and vaporizers/(30) magazine () separate fluid (32) surface
122/33122 liquid heaters and vaporizers/(30) magazine () separate fluid (32) surface (33) furnace
122/34122 liquid heaters and vaporizers/(30) magazine () separate fluid (32) surface (34) separator
122/31.1122 liquid heaters and vaporizers/(31.1) indirectly heated separate injected fluid
122/31.2122 liquid heaters and vaporizers/(31.1) indirectly heated separate injected fluid (31.2) submerged flame
122/35122 liquid heaters and vaporizers/(35) accumulator
122/36122 liquid heaters and vaporizers/(36) auxiliary steam heater
122/37122 liquid heaters and vaporizers/(37) compartment
122/38122 liquid heaters and vaporizers/(37) compartment () auxiliary (38) draft regulator
122/39122 liquid heaters and vaporizers/(39) film
122/40122 liquid heaters and vaporizers/(40) flasher
122/41122 liquid heaters and vaporizers/(40) flasher (41) fluid fuel
122/42122 liquid heaters and vaporizers/(42) fire and water tube
122/43122 liquid heaters and vaporizers/(42) fire and water tube (43) fluid fuel
122/44.1122 liquid heaters and vaporizers/(44.1) fire tube
122/44.2122 liquid heaters and vaporizers/(44.1) fire tube (44.2) with baffle in flue
122/49122 liquid heaters and vaporizers/(44.1) fire tube (49) horizontal and vertical
122/50122 liquid heaters and vaporizers/(44.1) fire tube () horizontal or inclined () water firebox (50) flue
122/51122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal
122/52122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (52) plural
122/53122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (52) plural (53) water tube
122/54122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal () central firebox (54) double outlet
122/55122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (55) cylinder
122/56122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal () depending fire tube (56) rear of bridge wall
122/57122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal () double water firebox (57) alternate smoke return
122/58R122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (58r) drop water firebox
122/59122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (58r) drop water firebox (59) circulation conduit
122/60122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (58r) drop water firebox () double (60) alternate smoke return
122/61122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (58r) drop water firebox (61) drop water baffle
122/62122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (58r) drop water firebox (62) front and rear water baffle
122/63122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (58r) drop water firebox (63) front water baffle
122/64122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (58r) drop water firebox (64) interposed combustion chamber
122/65122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (58r) drop water firebox (65) rear water baffle
122/66122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (58r) drop water firebox (66) water coking chamber
122/67122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (58r) drop water firebox () water grate (67) intermediate draft
122/68122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (58r) drop water firebox (68) water tube
122/69122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (58r) drop water firebox (68) water tube () feed heater (69) check-valved
122/70122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (58r) drop water firebox (68) water tube (70) feeding air
122/71122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (58r) drop water firebox (68) water tube (71) solid baffle
122/58FB122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (58r) drop water firebox (58fb) fire box construction
122/72122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (72) projecting into firebox
122/73122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (72) projecting into firebox (73) drop water firebox
122/74122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal () return and reverse (74) drop water firebox
122/75122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (75) return fire tube
122/76122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (75) return fire tube (76) drop water firebox
122/77122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (75) return fire tube (76) drop water firebox (77) internal water tube
122/78122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (75) return fire tube () water firebox (78) flue
122/79122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (79) subjacent water arch
122/80122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (80) subjacent flue
122/81122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (81) subjacent transverse fire tube
122/82122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal () superjacent feed heater (82) in communication
122/83122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (83) transverse diaphragm
122/84122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal () two diameters (84) great diameter over firebox
122/85122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal () two diameters (85) small diameter over firebox
122/86122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal () two diameters (85) small diameter over firebox (86) water firebox
122/87122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (87) u-coupling
122/88122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (88) upper drum
122/89122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal () water arch (89) rear of fire tube
122/90122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (90) water firebox
122/91122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (90) water firebox () firebox water heater (91) trapped circuit
122/92122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (90) water firebox (92) magazine
122/93122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (90) water firebox (93) offset
122/94.1122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (90) water firebox (93) offset (94.1) water tube type
122/95.1122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (90) water firebox (95.1) plural with common combustion chamber
122/95.2122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (90) water firebox (95.1) plural with common combustion chamber (95.2) multiboilers
122/96122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (90) water firebox (96) superposed
122/97122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (90) water firebox () water grate (97) downdraft
122/98122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (90) water firebox () water grate (98) updraft
122/99122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (90) water firebox () water tube (99) straddle
122/100122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (90) water firebox () water tube type (100) interposed flue
122/101122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (101) water smoke box
122/102122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal () water tube () horizontal (102) over bridge wall
122/103122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal () water tube (103) rear of fire tube
122/104122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal () water tube () rearwardly declined (104) over bridge wall
122/105122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal () water tube () rearwardly inclined (105) over bridge wall
122/106122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (106) water wall
122/107122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (106) water wall (107) drop water firebox
122/108122 liquid heaters and vaporizers/(44.1) fire tube (51) horizontal (106) water wall (108) subjacent water tube
122/109122 liquid heaters and vaporizers/(44.1) fire tube (109) inclined
122/110122 liquid heaters and vaporizers/(44.1) fire tube () transverse (110) horizontal boiler
122/111122 liquid heaters and vaporizers/(44.1) fire tube () transverse (111) vertical boiler
122/112122 liquid heaters and vaporizers/(44.1) fire tube () transverse (111) vertical boiler (112) water firebox
122/113122 liquid heaters and vaporizers/(44.1) fire tube () transverse (113) water tube
122/114122 liquid heaters and vaporizers/(44.1) fire tube (114) vertical
122/116122 liquid heaters and vaporizers/(44.1) fire tube (114) vertical (116) central fire dome
122/117122 liquid heaters and vaporizers/(44.1) fire tube (114) vertical (117) central magazine
122/118122 liquid heaters and vaporizers/(44.1) fire tube (114) vertical () circulation tube (118) internal
122/119122 liquid heaters and vaporizers/(44.1) fire tube (114) vertical (119) cylinder
122/120122 liquid heaters and vaporizers/(44.1) fire tube (114) vertical (120) offset firebox
122/121122 liquid heaters and vaporizers/(44.1) fire tube (114) vertical (121) return fire tube
122/122122 liquid heaters and vaporizers/(44.1) fire tube (114) vertical (121) return fire tube (122) water firebox
122/123122 liquid heaters and vaporizers/(44.1) fire tube (114) vertical (123) separate compartment
122/124122 liquid heaters and vaporizers/(44.1) fire tube (114) vertical (124) side magazine
122/125122 liquid heaters and vaporizers/(44.1) fire tube (114) vertical (125) top water chamber
122/126122 liquid heaters and vaporizers/(44.1) fire tube (114) vertical (126) water firebox
122/127122 liquid heaters and vaporizers/(44.1) fire tube (114) vertical (126) water firebox (127) annular
122/128122 liquid heaters and vaporizers/(44.1) fire tube (114) vertical (126) water firebox (128) central magazine
122/129122 liquid heaters and vaporizers/(44.1) fire tube (114) vertical () water grate (129) downdraft
122/130122 liquid heaters and vaporizers/(44.1) fire tube (114) vertical (130) water tube
122/131122 liquid heaters and vaporizers/(44.1) fire tube (114) vertical (130) water tube (131) internal
122/132122 liquid heaters and vaporizers/(44.1) fire tube (114) vertical (130) water tube (132) radial loop
122/133122 liquid heaters and vaporizers/(44.1) fire tube (114) vertical (130) water tube (133) spur
122/115122 liquid heaters and vaporizers/(44.1) fire tube (114) vertical (115) fluid fuel
122/134122 liquid heaters and vaporizers/(44.1) fire tube (134) volute
122/46122 liquid heaters and vaporizers/(44.1) fire tube (46) magazine
122/47122 liquid heaters and vaporizers/(44.1) fire tube () flue (47) horizontal
122/48122 liquid heaters and vaporizers/(44.1) fire tube () flue (48) vertical
122/45122 liquid heaters and vaporizers/(44.1) fire tube (45) fluid fuel
122/135.1122 liquid heaters and vaporizers/(135.1) flue
122/135.2122 liquid heaters and vaporizers/(135.1) flue (135.2) alternative stack
122/135.3122 liquid heaters and vaporizers/(135.1) flue (135.3) sinusoidal flue
122/136R122 liquid heaters and vaporizers/(135.1) flue (136r) horizontal
122/137122 liquid heaters and vaporizers/(135.1) flue (136r) horizontal (137) plural
122/138122 liquid heaters and vaporizers/(135.1) flue (136r) horizontal (137) plural (138) water tube
122/139122 liquid heaters and vaporizers/(135.1) flue (136r) horizontal (139) drop water firebox
122/140.1122 liquid heaters and vaporizers/(135.1) flue (136r) horizontal (140.1) internal water tube
122/140.2122 liquid heaters and vaporizers/(135.1) flue (136r) horizontal (140.1) internal water tube (140.2) having water tube in flue
122/141122 liquid heaters and vaporizers/(135.1) flue (136r) horizontal (140.1) internal water tube () longitudinal (141) drop water firebox
122/142122 liquid heaters and vaporizers/(135.1) flue (136r) horizontal (140.1) internal water tube (142) return fire tube
122/143122 liquid heaters and vaporizers/(135.1) flue (136r) horizontal (140.1) internal water tube (143) spur
122/144122 liquid heaters and vaporizers/(135.1) flue (136r) horizontal (140.1) internal water tube (144) subjacent firebox
122/145122 liquid heaters and vaporizers/(135.1) flue (136r) horizontal (140.1) internal water tube (145) transverse
122/146122 liquid heaters and vaporizers/(135.1) flue (136r) horizontal (140.1) internal water tube (145) transverse (146) drop water firebox
122/147122 liquid heaters and vaporizers/(135.1) flue (136r) horizontal (140.1) internal water tube (145) transverse (147) return fire tube
122/148122 liquid heaters and vaporizers/(135.1) flue (136r) horizontal (140.1) internal water tube (148) water firebox
122/149122 liquid heaters and vaporizers/(135.1) flue (136r) horizontal (149) return fire tube
122/150122 liquid heaters and vaporizers/(135.1) flue (136r) horizontal (149) return fire tube (150) rear water tube
122/151122 liquid heaters and vaporizers/(135.1) flue (136r) horizontal (149) return fire tube () water smoke box (151) separate
122/152122 liquid heaters and vaporizers/(135.1) flue (136r) horizontal (152) water grate in flue
122/153122 liquid heaters and vaporizers/(135.1) flue (136r) horizontal (153) water tube
122/154122 liquid heaters and vaporizers/(135.1) flue (136r) horizontal (153) water tube (154) over bridge wall
122/136C122 liquid heaters and vaporizers/(135.1) flue (136r) horizontal (136c) horizontal-corrugated or finned
122/155.1122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical
122/155.2122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (155.2) with flue baffle
122/155.3122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (155.3) having exterior heating flue
122/155.4122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (155.4) having corrugated flue
122/155.5122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (155.5) having undulating flue
122/157122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (157) central magazine
122/158122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (157) central magazine (158) water jacket
122/159122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical () circulation tube (159) internal
122/160122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (160) concentric shell
122/161122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (160) concentric shell (161) fluid fuel
122/162122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (160) concentric shell (162) central magazine
122/163122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (163) exterior drum
122/165122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (165) internal water heater
122/166.1122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (166.1) with internal water tube
122/166.2122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (166.1) with internal water tube (166.2) loop-type tube
122/168122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (166.1) with internal water tube (168) central magazine
122/169122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (166.1) with internal water tube (169) coil
122/170122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (166.1) with internal water tube (169) coil (170) header
122/171122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (166.1) with internal water tube (171) contracted inlet
122/172122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (166.1) with internal water tube (172) header
122/173122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (166.1) with internal water tube (173) horizontal spur
122/174122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (166.1) with internal water tube (174) internal fire tube
122/175122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (166.1) with internal water tube (175) offset water firebox
122/176122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (166.1) with internal water tube (176) transverse
122/177122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (166.1) with internal water tube (176) transverse (177) fluid fuel
122/178122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (166.1) with internal water tube (178) vertical aligned fire tube
122/179122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (166.1) with internal water tube (178) vertical aligned fire tube (179) fluid fuel
122/180122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (166.1) with internal water tube (178) vertical aligned fire tube (180) spur water tube
122/181122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (166.1) with internal water tube (181) vertical spur
122/167122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (166.1) with internal water tube (167) fluid fuel
122/182.1122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (182.1) with return fire tube
122/182.2122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (182.1) with return fire tube (182.2) having symmetrical arrangement of tubes
122/182.3122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (182.1) with return fire tube (182.3) having tubes offset from firebox
122/183122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical () spiral water conduit (183) fluid fuel
122/184122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical () standpipe () water tube (184) annular firebox
122/185122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical () standpipe () water tube (185) loop
122/186122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical () standpipe () water tube (186) spur
122/187122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (187) transverse fire tube
122/164122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (164) insulated outlet flue
122/156122 liquid heaters and vaporizers/(135.1) flue (155.1) vertical (156) fluid fuel
122/188122 liquid heaters and vaporizers/(135.1) flue (188) drop water baffle
122/189122 liquid heaters and vaporizers/(135.1) flue () offset subjacent firebox (189) water roof
122/190122 liquid heaters and vaporizers/(135.1) flue () offset subjacent firebox (190) water tube
122/191122 liquid heaters and vaporizers/(135.1) flue () subjacent fire tube (191) beyond bridge wall
122/192122 liquid heaters and vaporizers/(135.1) flue (192) water bridge wall
122/193122 liquid heaters and vaporizers/(135.1) flue (193) water firebox
122/194122 liquid heaters and vaporizers/(135.1) flue (193) water firebox (194) water tube type
122/195122 liquid heaters and vaporizers/(135.1) flue (195) water tube
122/196122 liquid heaters and vaporizers/(135.1) flue (195) water tube () feed heater (196) check-valved
122/197122 liquid heaters and vaporizers/(135.1) flue (195) water tube (197) lateral-longitudinal
122/198122 liquid heaters and vaporizers/(135.1) flue (195) water tube (198) lateral-vertical
122/199122 liquid heaters and vaporizers/(135.1) flue (195) water tube (198) lateral-vertical (199) firebox
122/200122 liquid heaters and vaporizers/(135.1) flue (195) water tube (200) over fuel grate
122/201122 liquid heaters and vaporizers/(135.1) flue (195) water tube (201) subjacent internal fire tube
122/202122 liquid heaters and vaporizers/(135.1) flue (195) water tube (202) trapped circuit
122/203122 liquid heaters and vaporizers/(135.1) flue (195) water tube () water grate (203) downdraft
122/204122 liquid heaters and vaporizers/(135.1) flue (195) water tube () water grate (204) intermediate draft
122/205122 liquid heaters and vaporizers/(135.1) flue (195) water tube () water grate (205) multiple series
122/206122 liquid heaters and vaporizers/(135.1) flue (195) water tube () water grate (206) solid and water bar
122/207122 liquid heaters and vaporizers/(135.1) flue (195) water tube () water grate (207) updraft
122/208122 liquid heaters and vaporizers/(135.1) flue () zigzag conduit (208) fluid fuel
122/209.1122 liquid heaters and vaporizers/(209.1) sectional
122/209.2122 liquid heaters and vaporizers/(209.1) sectional (209.2) feeding air
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