Subclass |
| Title |
ClassTitle
|
| ===>
LIQUID HEATERS AND VAPORIZERS
|
| | |
1R | | PLANTS |
2 | | . Garbage |
3 | | . Motor vehicle |
1A | | . Air heaters |
1B | | . Once through |
1C | | . Feed water heaters |
4R | | MISCELLANEOUS |
4A | | . Electric boiler |
4C | | . Water-cooled stoker |
4D | | . Catalyst |
5 | | GAS-PRODUCER |
5.51 | | AIR-INJECTED |
5.52 | | . Combustion gas and vapor contact |
6R | | INDUSTRIAL |
6.5 | | . Port |
6.6 | | . Tuyeres |
6.7 | | . . Forge |
7R | | . Waste heat |
7A | | . . Steel converter |
7B | | . . Additional burner |
7C | | . . Waste sulfite |
7D | | . . Carbon monoxide |
8 | | . Water firebox |
9 | | . . Water tube type |
6A | | . Water-cooled walls |
6B | | . Bosh plates |
6C | | . Skew arch coolers |
10 | | FOR FLUID FUEL BURNER |
11 | | ROTARY |
12 | | ROTATABLY SUPPORTED |
13.01 | | STAND BOILER (E.G., WATER HEATER, ETC.) |
13.3 | | . And delivery means to dispensing feature |
14.1 | | . And condition responsive feature |
14.2 | | . . Controls burner |
14.21 | | . . . By other than temperature of water |
14.22 | | . . . By temperature of water in a water containing chamber or external tank |
14.3 | | . . Having water flow control feature |
14.31 | | . . . Using valve actuated by flow or pressure (e.g., check valve, etc.) |
15.1 | | . Heated by liquid or steam (e.g., indirect heating, etc.) |
16.1 | | . Solid fuel burner |
17.1 | | . Fluid fuel burner |
17.2 | | . . Liquid fuel burner |
18.1 | | . . Having heat exchange feature |
18.2 | | . . . Preheater |
18.3 | | . . . Fire tube or flue surrounded by water containing chamber |
18.31 | | . . . . Penetrates one side of water chamber to another |
18.4 | | . . . Water tube surrounded by burned fuel |
18.5 | | . . And external water tank |
19.1 | | . Water containing chamber or external tank having circulation feature within |
19.2 | | . And casing feature for stand boiler or external water tank therefor |
20R | | SUBSIDIARY |
20A | | . Subsidiary-heater firebox |
20B | | . Subsidiary-heater offtake flue |
29 | | ANNULAR FIREBOX |
30 | | MAGAZINE |
| | INDIRECTLY HEATED |
| | . Separate fluid |
32 | | . . Surface |
33 | | . . . Furnace |
34 | | . . . Separator |
31.1 | | INDIRECTLY HEATED SEPARATE INJECTED FLUID |
31.2 | | . Submerged flame |
35 | | ACCUMULATOR |
36 | | AUXILIARY STEAM HEATER |
37 | | COMPARTMENT |
| | . Auxiliary |
38 | | . . Draft regulator |
39 | | FILM |
40 | | FLASHER |
41 | | . Fluid fuel |
42 | | FIRE AND WATER TUBE |
43 | | . Fluid fuel |
44.1 | | FIRE TUBE |
44.2 | | . With baffle in flue |
49 | | . Horizontal and vertical |
| | . Horizontal or inclined |
| | . . Water firebox |
50 | | . . . Flue |
51 | | . Horizontal |
52 | | . . Plural |
53 | | . . . Water tube |
| | . . Central firebox |
54 | | . . . Double outlet |
55 | | . . Cylinder |
| | . . Depending fire tube |
56 | | . . . Rear of bridge wall |
| | . . Double water firebox |
57 | | . . . Alternate smoke return |
58R | | . . Drop water firebox |
59 | | . . . Circulation conduit |
| | . . . Double |
60 | | . . . . Alternate smoke return |
61 | | . . . Drop water baffle |
62 | | . . . Front and rear water baffle |
63 | | . . . Front water baffle |
64 | | . . . Interposed combustion chamber |
65 | | . . . Rear water baffle |
66 | | . . . Water coking chamber |
| | . . . Water grate |
67 | | . . . . Intermediate draft |
68 | | . . . Water tube |
| | . . . . Feed heater |
69 | | . . . . . Check-valved |
70 | | . . . . Feeding air |
71 | | . . . . Solid baffle |
58FB | | . . . Fire box construction |
72 | | . . Projecting into firebox |
73 | | . . . Drop water firebox |
| | . . Return and reverse |
74 | | . . . Drop water firebox |
75 | | . . Return fire tube |
76 | | . . . Drop water firebox |
77 | | . . . . Internal water tube |
| | . . . Water firebox |
78 | | . . . . Flue |
79 | | . . Subjacent water arch |
80 | | . . Subjacent flue |
81 | | . . Subjacent transverse fire tube |
| | . . Superjacent feed heater |
82 | | . . . In communication |
83 | | . . Transverse diaphragm |
| | . . Two diameters |
84 | | . . . Great diameter over firebox |
85 | | . . . Small diameter over firebox |
86 | | . . . . Water firebox |
87 | | . . U-coupling |
88 | | . . Upper drum |
| | . . Water arch |
89 | | . . . Rear of fire tube |
90 | | . . Water firebox |
| | . . . Firebox water heater |
91 | | . . . . Trapped circuit |
92 | | . . . Magazine |
93 | | . . . Offset |
94.1 | | . . . . Water tube type |
95.1 | | . . . Plural with common combustion chamber |
95.2 | | . . . . Multiboilers |
96 | | . . . Superposed |
| | . . . Water grate |
97 | | . . . . Downdraft |
98 | | . . . . Updraft |
| | . . . Water tube |
99 | | . . . . Straddle |
| | . . . Water tube type |
100 | | . . . . Interposed flue |
101 | | . . Water smoke box |
| | . . Water tube |
| | . . . Horizontal |
102 | | . . . . Over bridge wall |
103 | | . . . Rear of fire tube |
| | . . . Rearwardly declined |
104 | | . . . . Over bridge wall |
| | . . . Rearwardly inclined |
105 | | . . . . Over bridge wall |
106 | | . . Water wall |
107 | | . . . Drop water firebox |
108 | | . . . Subjacent water tube |
109 | | . Inclined |
| | . Transverse |
110 | | . . Horizontal boiler |
111 | | . . Vertical boiler |
112 | | . . . Water firebox |
113 | | . . Water tube |
114 | | . Vertical |
116 | | . . Central fire dome |
117 | | . . Central magazine |
| | . . Circulation tube |
118 | | . . . Internal |
119 | | . . Cylinder |
120 | | . . Offset firebox |
121 | | . . Return fire tube |
122 | | . . . Water firebox |
123 | | . . Separate compartment |
124 | | . . Side magazine |
125 | | . . Top water chamber |
126 | | . . Water firebox |
127 | | . . . Annular |
128 | | . . . Central magazine |
| | . . Water grate |
129 | | . . . Downdraft |
130 | | . . Water tube |
131 | | . . . Internal |
132 | | . . . Radial loop |
133 | | . . . Spur |
115 | | . . Fluid fuel |
134 | | . Volute |
46 | | . Magazine |
| | . Flue |
47 | | . . Horizontal |
48 | | . . Vertical |
45 | | . Fluid fuel |
135.1 | | FLUE |
135.2 | | . Alternative stack |
135.3 | | . Sinusoidal flue |
136R | | . Horizontal |
137 | | . . Plural |
138 | | . . . Water tube |
139 | | . . Drop water firebox |
140.1 | | . . Internal water tube |
140.2 | | . . . Having water tube in flue |
| | . . . Longitudinal |
141 | | . . . . Drop water firebox |
142 | | . . . Return fire tube |
143 | | . . . Spur |
144 | | . . . Subjacent firebox |
145 | | . . . Transverse |
146 | | . . . . Drop water firebox |
147 | | . . . . Return fire tube |
148 | | . . . Water firebox |
149 | | . . Return fire tube |
150 | | . . . Rear water tube |
| | . . . Water smoke box |
151 | | . . . . Separate |
152 | | . . Water grate in flue |
153 | | . . Water tube |
154 | | . . . Over bridge wall |
136C | | . . Horizontal-corrugated or finned |
155.1 | | . Vertical |
155.2 | | . . With flue baffle |
155.3 | | . . Having exterior heating flue |
155.4 | | . . Having corrugated flue |
155.5 | | . . Having undulating flue |
157 | | . . Central magazine |
158 | | . . . Water jacket |
| | . . Circulation tube |
159 | | . . . Internal |
160 | | . . Concentric shell |
161 | | . . . Fluid fuel |
162 | | . . . Central magazine |
163 | | . . Exterior drum |
165 | | . . Internal water heater |
166.1 | | . . With internal water tube |
166.2 | | . . . Loop-type tube |
168 | | . . . Central magazine |
169 | | . . . Coil |
170 | | . . . . Header |
171 | | . . . Contracted inlet |
172 | | . . . Header |
173 | | . . . Horizontal spur |
174 | | . . . Internal fire tube |
175 | | . . . Offset water firebox |
176 | | . . . Transverse |
177 | | . . . . Fluid fuel |
178 | | . . . Vertical aligned fire tube |
179 | | . . . . Fluid fuel |
180 | | . . . . Spur water tube |
181 | | . . . Vertical spur |
167 | | . . . Fluid fuel |
182.1 | | . . With return fire tube |
182.2 | | . . . Having symmetrical arrangement of tubes |
182.3 | | . . . Having tubes offset from firebox |
| | . . Spiral water conduit |
183 | | . . . Fluid fuel |
| | . . Standpipe |
| | . . . Water tube |
184 | | . . . . Annular firebox |
185 | | . . . . Loop |
186 | | . . . . Spur |
187 | | . . Transverse fire tube |
164 | | . . Insulated outlet flue |
156 | | . . Fluid fuel |
| | HORIZONTAL CYLINDER |
188 | | . Drop water baffle |
| | . Offset subjacent firebox |
189 | | . . Water roof |
190 | | . . Water tube |
| | . Subjacent fire tube |
191 | | . . Beyond bridge wall |
192 | | . Water bridge wall |
193 | | . Water firebox |
194 | | . . Water tube type |
195 | | . Water tube |
| | . . Feed heater |
196 | | . . . Check-valved |
197 | | . . Lateral-longitudinal |
198 | | . . Lateral-vertical |
199 | | . . . Firebox |
200 | | . . Over fuel grate |
201 | | . . Subjacent internal fire tube |
202 | | . . Trapped circuit |
| | . . Water grate |
203 | | . . . Downdraft |
204 | | . . . Intermediate draft |
205 | | . . . Multiple series |
206 | | . . . Solid and water bar |
207 | | . . . Updraft |
| | PLATE |
| | . Zigzag conduit |
208 | | . . Fluid fuel |
209.1 | | SECTIONAL |
209.2 | | . Feeding air |
213 | | . Plural firebox |
| | . Horizontal sections |
214 | | . . Superimposed |
215 | | . . . Central connection |
216 | | . . . . Fluid fuel |
217 | | . . . . Water firebox |
218 | | . . . Water firebox |
219 | | . . . . Central magazine |
| | . . . Water tube |
| | . . . . Internal fire tube |
220 | | . . . . . Water firebox |
| | . Vertical sections |
221 | | . . Annularly positioned |
222 | | . . . Central magazine |
223 | | . . Longitudinally positioned |
224 | | . . . Casing |
225R | | . . Transversely positioned |
226 | | . . . Casing |
227 | | . . . . Divided section |
228 | | . . . Divided section |
229 | | . . . Water grate |
225A | | . . . Water heater in flue |
225B | | . . . Water heater in boiler |
225F | | . . . Feeding air |
230 | | . . Two-section |
212.1 | | . With magazine |
212.2 | | . . With return or alternate flue |
211 | | . Fluid or solid fuel |
210 | | . Fluid fuel |
232 | | . Water grate |
231 | | . Accessories |
| | TANK |
233 | | . Horizontal |
234 | | . Vertical |
235.11 | | WATER TUBE |
235.12 | | . Wall structure |
235.13 | | . With fuel burners having posts and tuyeres |
235.14 | | . Tube structure |
235.15 | | . Headers and connections |
235.16 | | . For plural fluids |
235.17 | | . Having baffles |
235.18 | | . Having seals |
235.19 | | . D-type tube |
235.21 | | . . Multiple D-type tubes |
235.22 | | . Wall loop |
235.23 | | . Having specific tube patterns |
235.24 | | . Screens |
235.25 | | . . Floor screens |
235.26 | | . Having slag and ash disposal |
235.27 | | . Locomotive-type |
235.28 | | . Having rotary flame |
235.29 | | . Having forced circulation system |
235.31 | | . Having specific intenal drum and head structure |
235.32 | | . With combustion |
235.33 | | . With convection zone regulation |
235.34 | | . With parallel multiple fireboxes |
235.35 | | . With serial multiple fireboxes |
238 | | . Offset firebox |
239 | | . Superimposed firebox |
240.1 | | . Having plural fireboxes |
240.2 | | . . Series connected |
240.3 | | . . Parallel connected |
241 | | . Firebox in drum |
242 | | . Capillary |
243 | | . . Fluid fuel |
| | . Coil or loop |
244 | | . . Central standpipe |
245 | | . . . Fluid fuel |
246 | | . . . Annular firebox |
247 | | . Coil |
| | . . Horizontal |
248 | | . . . Fluid fuel |
249 | | . . Vertical |
250R | | . . . Fluid fuel |
250S | | . . . . Standpipe |
251 | | . . . Central magazine |
252 | | . . . Water firebox |
253 | | . Cross |
254 | | . . Over bridge wall |
| | . . Over firebox |
| | . . . Longitudinal |
| | . . . . Header |
255 | | . . . . . Drum |
| | . . . Transverse |
| | . . . . Header |
256 | | . . . . . Drum |
| | . . Transverse |
| | . . . Header |
257 | | . . . . Drum |
258 | | . Downflow |
259 | | . Drum type |
260 | | . Flat |
261 | | . . Volute |
262 | | . Horizontal |
263 | | . . Over bridge wall |
264 | | . . Over firebox |
265 | | . Inclined |
266 | | . Internal fire tube |
267 | | . . Horizontal |
268 | | . . Inclined |
269 | | . . Plural fire tube |
270 | | . . Straddle |
271 | | . . Vertical |
272 | | . . . Central magazine |
273 | | . Longitudinal upper drum |
274 | | . . Fluid fuel |
275 | | . Loop |
276 | | . . Firebox enclosing |
277 | | . . Over bridge wall |
| | . . Over firebox |
278 | | . . . Cross |
279 | | . . . Horizontal |
| | . . . Rear of bridge wall |
280 | | . . . . Bridge wall header |
281 | | . . . Standpipe |
282 | | . . . Vertical |
283 | | . . . . Fluid fuel |
| | . Over bridge wall |
284 | | . . Headers at right angles |
285 | | . . Transverse water baffle |
| | . . Water grate |
286 | | . . . Downdraft |
287 | | . . . Intermediate draft |
| | . Over firebox |
288 | | . . Headers at right angles |
| | . . Water grate |
289 | | . . . Updraft |
| | . Rearwardly declined |
| | . . Over bridge wall |
290 | | . . . Front and rear header |
291 | | . . . . Horizontal-longitudinal drum |
292 | | . . . . . Firebox tube |
293 | | . . . . . Longitudinal water baffle |
294 | | . . . . . Water wall |
295 | | . . . . Internal water tube |
296 | | . . . . Longitudinal-declined drum |
297 | | . . . . Transverse drum |
| | . . Over firebox |
| | . . . Front and rear header |
298 | | . . . . Horizontal-longitudinal drum |
299 | | . . . . Transverse drum |
300 | | . . . . Tubes beyond side wall |
| | . . Plural upper transverse drum |
301 | | . . . Plural lower transverse drum |
302 | | . . . Single lower transverse drum |
| | . Rearwardly inclined |
| | . . Over firebox |
| | . . . Front and rear header |
303 | | . . . . Transverse drum |
| | . Separate banks |
304 | | . . Opposite fireboxes |
305 | | . Spur |
306 | | . . Bridge wall header |
307 | | . . Central standpipe |
308 | | . . . Fluid fuel |
309 | | . . . Annular firebox |
310 | | . . . Central magazine |
311 | | . . Cross |
312 | | . . Horizontal-longitudinal drum |
313 | | . . Over bridge wall |
| | . . Over firebox |
314 | | . . . Central header |
315 | | . . . Declined |
316 | | . . . Horizontal |
317 | | . . Straddle |
318 | | . . Vertical |
319 | | . . . Fluid fuel |
320 | | . . . Central magazine |
321 | | . Standpipe |
322 | | . . Fluid fuel |
323 | | . . Annular firebox |
324 | | . Straddle |
| | . . Plural upper drum |
325 | | . . . Plural lower drum |
326 | | . . . . Cross |
| | . . Single upper drum |
327 | | . . . Plural lower drum |
328 | | . . . . Fluid fuel |
329 | | . . . . Cross |
330 | | . . . . Plural firebox |
331 | | . Transverse horizontal drum |
332 | | . Vertical |
333 | | . . Fluid fuel |
334 | | . . Side magazine |
335 | | . . Annular firebox |
336 | | . . Offset firebox |
337 | | . . . Elevated |
| | . . Annular lower drum |
338 | | . . . Annular upper drum |
339 | | . . . . Central magazine |
340 | | . . . . Tubes over firebox |
341 | | . . . Fire tube upper drum |
342 | | . . . Spur tube upper drum |
343 | | . . . Upper drum |
344 | | . . . . Central magazine |
345 | | . . Beyond bridge wall |
346 | | . . . Gas return |
| | . . . Longitudinal upper drum |
347 | | . . . . Longitudinal lower drum |
| | . . Internal fire tube |
348 | | . . . Fluid fuel |
349 | | . . Over firebox |
350 | | . . . Gas return |
| | . . Plural upper longitudinal drum |
351 | | . . . Plural lower longitudinal drum |
| | . . Plural upper transverse drum |
| | . . . Plural lower transverse drum |
352 | | . . . . Offset firebox |
353 | | . Water grate |
354 | | . . Downdraft |
355 | | . Zigzag |
356 | | . . Fluid fuel |
| | . . Over bridge wall |
357 | | . . . Longitudinal drum |
358 | | . . . Transverse drum |
359 | | . . Over firebox |
237 | | . Magazine |
236 | | . Fluid fuel |
| | . Headers |
360 | | . . Closures and couplings |
361 | | . . . Cleaning |
362 | | . . . Concentric tube |
363 | | . . . Drum |
364 | | . . . Tube closures |
365 | | . Drums and couplings |
366 | | WICK |
367.1 | | HEAT TRANSMITTER |
367.2 | | . Double immersed heat transmitters |
367.3 | | . Corrugated and finned heat transmitters |
367.4 | | . Pebble furnaces |
368 | | WATER FIREBOX |
369 | | . Mud ring |
370 | | . Plural |
371 | | WATER GRATE |
| | . Plural firebox |
| | . . Superimposed |
| | . . . Water grate |
372 | | . . . . Updraft |
373 | | . Cage |
374 | | . Grate structure |
375 | | . . Solid and water bar |
376 | | . Progressive feed |
| | . Water firebox |
| | . . Solid and water bar |
377 | | . . . Updraft |
378 | | . . Updraft |
21 | | CHEMICAL |
22 | | FLUID AND SOLID FUEL |
23 | | FLUID FUEL |
24 | | . Explosion |
| | . Plural burner |
25 | | . . Superimposed |
26 | | FRICTION GENERATOR |
| | NONCOMBUSTIBLE HEATER |
27 | | . Surface |
28 | | . Water in contact |
379 | | CLEANING |
380 | | . Agitating circulator |
| | . Blow off |
381 | | . . Bottom and surface |
382 | | . . Bottom |
383 | | . . . Internal conduit |
384 | | . . . . Ejector |
385 | | . . . . Mud ring |
386 | | . . . . Pan |
387 | | . . . . Scraper |
388 | | . . . . Valved |
389 | | . . Surface exit |
390 | | . Fluid jet |
391 | | . . Horizontal fire tube boiler |
392 | | . . Water tube boiler |
393 | | . Mud drum |
394 | | . Pans |
395 | | . Sandblast |
396 | | . Systems |
397 | | . Trapped circuit |
398 | | . . Feeding water |
399 | | . . Surface and bottom exit |
400 | | . . Surface exit |
401 | | . . . Chemical feeder |
402 | | . . . Circulating pump |
403 | | . . . Feed heater |
404 | | . . . Steam injector |
405 | | . Wash-out nozzle |
406.1 | | CIRCULATION |
406.2 | | . Having anticavitation devices |
406.3 | | . Having restrictors and orifices |
406.4 | | . Once through |
406.5 | | . With start-up operations |
407 | | . Injector |
408.1 | | . Having internal conduit |
408.2 | | . . With internal geyser tube |
409 | | . . Horizontal flue boiler |
410 | | . . . Return fire tube |
| | . Mechanical |
411 | | . . Internal |
412 | | FEED HEATERS |
413 | | . Ash pan |
| | . Boiler circuit |
414 | | . . Feed-injected |
| | . Circulatioon |
| | . . Surface exit |
| | . . . Mechanical pump |
415 | | . . . . Feed-injected |
417 | | . Drip plate in boiler |
| | . Fire-engine boiler |
| | . . Auxiliary |
418 | | . . . Attached |
419 | | . . . Detachable |
420 | | . Furnace gases |
421 | | . Offtake flue |
422 | | . Furnace gases and steam |
| | . Horizontal fire tube boiler |
423 | | . . Smoke box |
424 | | . . . Exhaust pipe |
425 | | . . . Furnace gases and steam |
426 | | . . . Water tube |
427 | | . . Smoke chamber |
428 | | . Internal conduit |
429 | | . . Automatic sediment valve |
430 | | . . Blow-off delivery |
431 | | . . Filter in boiler |
432 | | . . Furnace gases |
433 | | . . Trap outside boiler |
434 | | . Locomotive tender |
435 | | . Pan in steam space |
436 | | . . Spray |
437 | | . Safety valve |
438 | | . Spray to steam space |
439 | | . Stack |
441 | | . Steam |
442 | | . . Injected |
| | . . . Superposed |
443 | | . . . . Open to steam space |
444 | | . Water tube boiler |
| | REGULATION |
| | . Fuel and water |
446 | | . . Fluid fuel |
447 | | . . . Cutoff |
| | . . Automatic control |
449 | | . . . Solid fuel |
450 | | . Suspended boiler |
448.1 | | AUTOMATIC CONTROL OF FLUID FUEL AND WATER |
448.2 | | . Having fuel or feed bypass |
448.3 | | . Multiple boiler regulation |
448.4 | | . Once through |
451R | | FEEDERS |
| | . Automatic |
451.1 | | . . Thermally controlled |
451.2 | | . . . Pressure-operated valve |
452 | | . Boiler pressure |
| | . Gravity |
456 | | . . Automatic |
457 | | . . . Heater |
458 | | . . Heater |
451S | | . Once through |
459 | | STEAM TREATMENT |
460 | | . Boilers with superheaters |
| | . Fire tube boiler |
| | . . Horizontal |
461 | | . . . Superheater |
| | . . . . In fire tube |
462 | | . . . . . From smoke box |
| | . . . . Interior steam space |
463 | | . . . . . Internal fire tube |
| | . . . . Smoke box |
464 | | . . . . . Fire tube |
465 | | . . . . . Steam tube |
466 | | . . Superheater and feed heater |
| | . . Vertical |
467 | | . . . Superheater |
| | . Flue boiler |
| | . . Vertical |
| | . . . Internal water tube |
468 | | . . . . Superheater |
| | . Horizontal boiler |
| | . . Superheater |
469 | | . . . Rear of firebox |
470 | | . . . Waste-heat flue |
| | . Water tube boiler |
| | . . Declined over bridge wall |
| | . . . Front and rear header |
| | . . . . Declined drum |
471 | | . . . . . Superheater |
| | . . . . Longitudinal drum |
472 | | . . . . . Superheater |
| | . . Longitudinal drum |
473 | | . . . Superheater |
| | . . Over bridge wall |
474 | | . . . Superheater |
| | . . Standpipe |
| | . . . Spur tube |
475 | | . . . . Superheater |
| | . . Transverse drum |
478 | | . . . Superheater |
477 | | . . Superheater and feed heater |
476 | | . . Superheater |
| | . Superheater |
480 | | . . Damper-controlled |
481 | | . . Firebox |
482 | | . . Fire tube in steam space |
483 | | . . Indirectly heated |
484 | | . . Separate charges |
485 | | . . Separate furnace |
486 | | . . Steam dome |
487 | | . . Water-injected |
479.1 | | . Automatic heat regulation of superheater |
479.2 | | . . Having gas recirculation |
479.3 | | . . Having flame positioning |
479.4 | | . . With variable firing |
479.5 | | . . Having dampers |
479.6 | | . . Plural furnaces |
479.7 | | . . Once through |
| | SEPARATORS |
488 | | . Boiler circulation |
489 | | . Boiler return |
490 | | . For tilting boilers |
491 | | . Interior of boilers |
492 | | . Steam dome |
493 | | BRACES AND STAYS |
494 | | CASINGS |
495 | | CROWN SHEETS PROTECTING |
496 | | CROWN SHEETS AND STAYS |
497 | | FRONTS |
498 | | . Doors |
499 | | . Mouths |
500 | | . . Water firebox |
501 | | FLUID-DISPLACER |
502 | | . Fluid fuel |
503 | | FUEL BAFFLES |
504 | | SAFETY DEVICES |
504.1 | | . Fusible control |
504.2 | | . Alarms or indicators |
| | . Fire extinguishers |
504.3 | | . . Fusible control |
505 | | . . Float-controlled |
506 | | . . Pressure-controlled |
507 | | . Self-closing valve |
508 | | STEAM DOMES |
509 | | SUBMERGED STEAM CHAMBER |
510 | | SUPPORTS |
511 | | TUBES AND CONNECTIONS |
512 | | TUBE SHEETS |
| | ********************************* |
| | FOREIGN ART COLLECTIONS |
| | ********************************* |
| | Any foreign patents/nonpatent literature from subclasses that were reclassified have been transferred directly to the art collections listed below. These art collections contain ONLY foreign patents/nonpatent literature. [Note: The parenthetical references in the titles refer to the abolished U.S. classifications from which these art collections were derived]. |
FOR 100 | | STAND BOILER (122/13.1) |
FOR 101 | | . Electric (122/13.2) |
| | . Fire tube and water tube (122/unnumbered) |
FOR 102 | | . . Fluid fuel (122/16) |
| | . Fire tube (122/unnumbered) |
FOR 103 | | . . Fluid fuel (122/17) |
| | . Water tube (122/unnumbered) |
| | . . Below boiler (122/unumbered) |
FOR 104 | | . . . Fluid fuel (122/18) |
| | . . Casing (122/unnumbered) |
FOR 105 | | . . . Fluid fuel (122/19) |
FOR 106 | | . Fluid fuel (122/14) |
FOR 107 | | . Solid fuel (122/15) |
| | ****************************** |
| | DIGESTS |
| | ****************************** |
DIG 1 | | Air heater |
DIG 2 | | Air heater - indirectly heated |
DIG 3 | | Gas flow baffles |
DIG 4 | | Once through boilers |
DIG 5 | | Critical pressure |
DIG 6 | | Damper-directed radiation |
DIG 7 | | Feeding air |
DIG 10 | | Portable units |
DIG 11 | | Removable steam-heating elements |
DIG 13 | | Tubes - composition and protection |
DIG 14 | | Tube replacement |
DIG 15 | | Valves |
DIG 16 | | Welding |