Class 454: VENTILATION ( Manual of U.S. Patent Classification )

U.S. PATENT AND TRADEMARK OFFICE
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Manual of U.S. Patent Classification
as of June 30, 2000


Class
454
VENTILATION


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Subclass Title
ClassTitle ===> VENTILATION
1[Patents]CHIMNEY OR STACK
2[Patents] . Vehicle
3[Patents] . Chimneytop or stacktop structure (e.g., cowl)
4[Patents] . . Cap closure
5[Patents] . . . Pivoted
6[Patents] . . . . Plural, separately pivoted portions
7[Patents] . . . . Having remote control
8[Patents] . . Inlet and outlet
9[Patents] . . . Having air current responsive adjustment means (e.g., wind vane, etc.)
10[Patents] . . Inlet
11[Patents] . . . Having air current responsive adjustment means (e.g., wind vane, etc.)
12[Patents] . . With means for mounting on brick-type chimney
13[Patents] . . . Chimneytop structure extends within chimney
14[Patents] . . . . Means for mounting to inner wall
15[Patents] . . With rotary means in air current (e.g., fan, etc.)
16[Patents] . . . Driven by external power source
17[Patents] . . . Having air current responsive adjustment means (e.g., wind vane, etc.)
18[Patents] . . . Cage-type blade set
19[Patents] . . . . Including additional blade set
20[Patents] . . Having air current responsive adjustment means
21[Patents] . . . Wind vane
22[Patents] . . . . With air current inducing jet
23[Patents] . . . . . Centered within induced air current
24[Patents] . . . . Shield
25[Patents] . . . . Hood having outlet opening perpendicular to wind
26[Patents] . . . Current regulator
27[Patents] . . Having readily movable air current regulating means
28[Patents] . . . With temperature sensitive release
29[Patents] . . . Continuously horizontal panel
30[Patents] . . . Pivoted
31[Patents] . . . . Plural
32[Patents] . . T-top
33[Patents] . . Spiral or plural stacked rings
34[Patents] . . Four-side outlets with shield
35[Patents] . . Spaced cap
36[Patents] . . . And spaced shield
37[Patents] . . . . And skirt deflector extending outwardly from chimney or stack
38[Patents] . . . And skirt deflector extending outwardly from chimney or stack
39[Patents] . . Having air current inducing jet
40[Patents] . . . Plural, in-series jets
41[Patents] . Having liquid drain
42[Patents] . Having internal air current guide
43[Patents] . Having flue heater
44[Patents] . Having lining or sleeve
45[Patents] . . Including breech opening
46[Patents] . . Pressurized air lining
47[Patents] . . Axially connected chimney or stack sections
48[Patents]EXTERIOR VAULT OR MANHOLE COVER
49[Patents]WORKSTATION VENTILATOR (E.G., HOOD, OFFTAKE, ETC.)
50[Patents] . Spray booth
51[Patents] . . Having air inlet separate from access opening
52[Patents] . . . Ceiling inlet
53[Patents] . . With outlet air treatment means
54[Patents] . . . With means for liquid contact
55[Patents] . . . . Spraying nozzle
56[Patents] . Covered workbench chamber (e.g., fume hood, etc.)
57[Patents] . . Having air inlet separate from access opening
58[Patents] . . . Including flow adjustment means
59[Patents] . . . . Responsive to position of access door
60[Patents] . . . And air outlet through access opening
61[Patents] . . Having outlet airway flow adjustment means
62[Patents] . . . Plural airways with adjustable distribution means
63[Patents] . Movable
64[Patents] . . Having sliding, communication, airway duct sections
65[Patents] . . Having canopy exhaust hood
66[Patents] . Having inlet airway
67[Patents] . Having canopy exhaust hood
68[Patents]ELEVATOR
69[Patents]VEHICLE (E.G., AUTOMOBILE, ETC.)
70[Patents] . Pressure regulation
71[Patents] . . Ventilation of aircraft cabin
72[Patents] . . . Auxiliary control system
73[Patents] . . . Mechanical operation of control system (e.g., by bellows or diaphragm, etc.)
74[Patents] . . . Control system having electrical or electronic component
75[Patents] . Having automatic control means
76[Patents] . Aircraft
77[Patents] . . Freight
78[Patents] . Waterborne
79[Patents] . . Freight
80[Patents] . . . Nonperishable bulk foodstuff (e.g., grain ship)
81[Patents] . . Porthole ventilator
82[Patents] . . With moisture deflector or drain
83[Patents] . Railcar, bus, or trailer
84[Patents] . . Locomotive cab
85[Patents] . . . Condensation preventer (e.g., defroster, etc.)
86[Patents] . . . Including dust guard for cab window opening
87[Patents] . . Sleeping car
88[Patents] . . Freight
89[Patents] . . . Ice-bunker closure (e.g., for refrigerated railcar)
90[Patents] . . . Refrigerated or heated
91[Patents] . . . . With air pump
92[Patents] . . . With air pump
93[Patents] . . Condensation preventer (e.g., defroster, etc.)
94[Patents] . . Having exterior cap closure for vent
95[Patents] . . Having window or entry-door ventilation structure
96[Patents] . . . Including dust guard for window opening
97[Patents] . . . . Inside of window
98[Patents] . . . . Outside of window
99[Patents] . . Having forced recirculation
100[Patents] . . . Having forced recirulation means alone
101[Patents] . . . . Wind-operated fan
102[Patents] . . . . Wheel-axle operated fan
103[Patents] . . Having both inlet and outlet airways
104[Patents] . . . Including unitary inlet and outlet housing
105[Patents] . . . With air pump
106[Patents] . . . . Wind or wheel-axle operated
107[Patents] . . Having inlet airway
108[Patents] . . . Including specific air distributor
109[Patents] . . . . Having adjustable deflector
110[Patents] . . . Liquid contact
111[Patents] . . . With deflecting separator-type filter
112[Patents] . . . With air pump
113[Patents] . . . . Wind operated
114[Patents] . . . . Wheel-axle operated
115[Patents] . . Having outlet airway
116[Patents] . . . With current inducing jet
117[Patents] . . . With air pump (e.g., wind or wheel-axle operated, etc.)
118[Patents] . Freight
119[Patents] . Having external connection
120[Patents] . Seat structure
121[Patents] . Condensation preventer (e.g., defroster, etc.)
122[Patents] . . Air directed between double paned window
123[Patents] . . Air directed at window exterior
124[Patents] . . Side or rear window
125[Patents] . . Having sweeping air distributor
126[Patents] . . Having means for combining heated and unheated air
127[Patents] . . Having dashboard air distributor (e.g., for windshield, etc.)
128[Patents] . Means for open window (e.g., deflector, etc.)
129[Patents] . . Sunroof
130[Patents] . . Windshield or rear window
131[Patents] . . At upper edge of sliding window
132[Patents] . . . Having means to selectively adjust airflow
133[Patents] . . . Having plural air passages
134[Patents] . . Pivoted window
135[Patents] . . Adjacent front edge of window
136[Patents] . Roof structure
137[Patents] . . Including duct extending along roof
138[Patents] . . . Having exterior inlet opening over windshield
139[Patents] . Having forced recirculation
140[Patents] . . Forced recirculation alone or agitating fan
141[Patents] . Having both inlet and outlet airways
142[Patents] . . Including unitary inlet and outlet housing
143[Patents] . Having inlet airway
144[Patents] . . Including duct extending along floor
145[Patents] . . Selective inlet, outlet, and closure
146[Patents] . . Including exterior cowl inlet
147[Patents] . . . With moisture deflector or drain
148[Patents] . . . Ducting to heat exchanger
149[Patents] . . . Having exterior door
150[Patents] . . Including exterior windshield inlet
151[Patents] . . Including exterior rear or rear-side inlet
152[Patents] . . Including specific air distributor
153[Patents] . . . Sweeping type
154[Patents] . . . Having swiveling nozzle
155[Patents] . . . Having adjustable deflector
156[Patents] . . With air treatment means
157[Patents] . . . Liquid contact
158[Patents] . . . Porous filter
159[Patents] . . . Heating
160[Patents] . . . . Having means for combining heated and unheated air
161[Patents] . . . . Having heat exchange core
162[Patents] . Having outlet airway
163[Patents] . . With current inducing jet
164[Patents] . . Exterior side outlet
165[Patents] . . Exterior rear outlet
166[Patents]VEHICULAR TUNNEL
167[Patents] . With air pump
168[Patents]MINE
169[Patents] . With partition means (e.g., brattice, etc.)
170[Patents] . . Flexible sheet
171[Patents] . Having inlet and outlet ductwork
172[Patents] . Having inlet ductwork
173[Patents]STORAGE AREA FOR PERISHABLES
174[Patents] . Harvested crop ventilation
175[Patents] . . Having perforated or slotted duct contacting crop
176[Patents] . . . Including insertion means
177[Patents] . . . Horizontal and vertical perforated or slotted ducts
178[Patents] . . . . With air pump
179[Patents] . . . Horizontal duct
180[Patents] . . . . With air pump
181[Patents] . . . With air pump
182[Patents] . . Granular crop or corn ears
183[Patents] . Provision safe
184[Patents]ELECTRONIC CABINET
185[Patents]HOLLOW PARTITION
186[Patents] . Having blower
187[Patents]CLEAN ROOM
188[Patents]HAVING PROTECTING AIR CURRENT
189[Patents] . Surrounding protected area
190[Patents] . Including plural, layered currents
191[Patents] . Including suction outlet
192[Patents] . Including current adjusting mean
193[Patents] . Cabinet enclosure (e.g., display case, etc.)
194[Patents]BLAST OR SHOCK WAVE PREVENTION
195[Patents]MEANS COMBINED WITH DOOR
196[Patents]MEANS COMBINED WITH WINDOW
197[Patents] . For bed or couch
198[Patents] . Condensation preventer
199[Patents] . Skylight
200[Patents] . With air pump
201[Patents] . . Cooling air conditioner
202[Patents] . . . Having readily moveable flow control means
203[Patents] . . . With extensible side panel
204[Patents] . . . With mounting or support means
205[Patents] . . Recirculation means
206[Patents] . . With specific noise inhibiting structure
207[Patents] . . With specific filtering means
208[Patents] . . Propeller fan having rotary axis perpendicular to window
209[Patents] . . . With mounting means for pump reversal
210[Patents] . . . With extensible side panel
211[Patents] . Having air passage in sash
212[Patents] . Having air passage means within, attaching to, or replacing pane
213[Patents] . Having air passage at window top
214[Patents] . Having air passage between sill and bottom of sash
215[Patents] . . Including wall sloping downward from window
216[Patents] . . Including wall for upwardly deflecting inlet air
217[Patents] . . . Having adjustable angle or swingable mounting
218[Patents] . . . . Including collapsible or flexible, perpendicular side wall
219[Patents] . . . Having readily moveable air regulating means
220[Patents] . . . Having slidably interconnected sections
221[Patents] . . Including louvers
222[Patents] . . Including readily moveable air regulating means
223[Patents] . . With means for liquid contact
224[Patents] . Having louvers
225[Patents] . Tilting pane window
226[Patents] . Having wind deflector
227[Patents] . Including backdraft preventer
228[Patents]HAVING FORCED RECIRCULATION
229[Patents] . Including automatic control means
230[Patents] . Forced recirculation alone
231[Patents] . . Having recirculating duct connecting upper and lower room air strata
232[Patents] . . Having plural or branched recirculation ducts
233[Patents] . . For use with heating or cooling means
234[Patents] . Including unitary housing having both inlet and outlet airways
235[Patents] . . Having air pump means for both airways
236[Patents] . For use with heating and cooling means
237[Patents]HAVING BOTH INLET AND OUTLET AIRWAYS
238[Patents] . Pressure regulation
239[Patents] . Including automatic control means
240[Patents] . With wind-operated air pump
241[Patents] . Including unitary inlet and outlet housing
242[Patents] . . Rooftop
243[Patents] . . Sleeved vent for ceiling, wall, or floor (e.g., thimble)
244[Patents] . . . With air pump means for both inlet and outlet airways
245[Patents] . . Air distributor with return vent (e.g., register, etc.)
246[Patents] . . . Baseboard type
247[Patents] . . . Floor type
248[Patents] . . . Ceiling type
249[Patents] . . With air pump
250[Patents] . Natural ventilation including air passage through rooftop (i.e., no air pump)
251[Patents] . With air pump means
252[Patents] . . For both inlet and outlet airways
253[Patents] . . For outlet airway
254[Patents]HAVING INLET AIRWAY
255[Patents] . Pressure regulation
256[Patents] . Including automatic control means
257[Patents] . . Emergency smoke or fire responsive valve
258[Patents] . . Air temperature responsive
259[Patents] . Including backdraft preventer
260[Patents] . Through roof eaves or rafters
261[Patents] . Including structure for mixing plural air streams together
262[Patents] . . And having specific noise inhibiting structure
263[Patents] . . With shaped nozzle
264[Patents] . . . And readily movable air regulating louver, damper, or cover
265[Patents] . . With readily movable air regulating louver, damper, or cover
266[Patents] . . . Pivoted
267[Patents] . . . . Plural
268[Patents] . . . . . Including parrallel louver vanes
269[Patents] . . With air pump
270[Patents] . Sleeved vent for ceiling, wall, or floor (e.g., thimble)
271[Patents] . . Wall type
272[Patents] . . . With air pump
273[Patents] . . . Having adjustable valve
274[Patents] . . . . Sliding or axially moveable
275[Patents] . Including specific cover or shield for exterior vent opening
276[Patents] . . Wall type
277[Patents] . . . Louver
278[Patents] . . . . Having moveable vanes
279[Patents] . . . . Having serially aligned vane sets
280[Patents] . . . . Formed in sheet member
281[Patents] . . . . Having specific vane supporting means
282[Patents] . . . . . In between vane ends
283[Patents] . . . . With screen mounting means
284[Patents] . Including specific air distributor (e.g., register, etc.)
285[Patents] . . Sweeping type
286[Patents] . . Having airway joint with ball or cylinder rotatable in a socket
287[Patents] . . Baseboard type
288[Patents] . . . Including portion or element movable during normal use
289[Patents] . . Floor type
290[Patents] . . . Having adjustable valve
291[Patents] . . . With means for liquid contact
292[Patents] . . Ceiling type
293[Patents] . . . With light fixture
294[Patents] . . . . Air passes over lamp
295[Patents] . . . . Having adjustable valve
296[Patents] . . . Including perforated or porous element
297[Patents] . . . . Having portion or element movable during normal use
298[Patents] . . . . . Axially movable or sliding valve
299[Patents] . . . Including plural vanes
300[Patents] . . . . Concentric
301[Patents] . . . Including elongated output slot
302[Patents] . . . . Single, annular output slot
303[Patents] . . . . Having portion or element movable during normal use
304[Patents] . . . . . Pivoted
305[Patents] . . Air nozzle
306[Patents] . . Having air duct extending into room
307[Patents] . . Having air deflecting wall extending into room
308[Patents] . . Having vanes or elongated output slots extending radially
309[Patents] . . Louvered air distributor
310[Patents] . . . Concentric
311[Patents] . . . . Having separate, adjustable internal damper
312[Patents] . . . . Having adjustable vane
313[Patents] . . . Moveable
314[Patents] . . . . Aligned mutiple, movable sets of vanes
315[Patents] . . . . . Serially arranged sets
316[Patents] . . . . Repositionable set
317[Patents] . . . . Rotating disks
318[Patents] . . . . Louver vanes form valve
319[Patents] . . . . Plural vanes pivoting about individual axes
320[Patents] . . . . . Pivot at leading or trailing vane edge
321[Patents] . . . In housing within room
322[Patents] . . With adjustable valve
323[Patents] . . . Axially movable
324[Patents] . . . Sliding
325[Patents] . . . Plural blades pivoting along parrallel axes
326[Patents] . . . . Adjacent blades pivot in opposing directions
327[Patents] . . . Valve opens by pivoting in upstream direction
328[Patents] . . With means for liquid contact
329[Patents] . . With air pump
330[Patents] . . Having register box, frame, or grating
331[Patents] . . . Including specific grating or grating mounting structure
332[Patents] . . . . Readily moveable grating
333[Patents] . With adjustable valve (e.g., damper, etc.)
334[Patents] . . Axially movable or sliding
335[Patents] . . Plural blades pivoting along parallel axes
336[Patents] . . . Adjacent blades pivot in opposing directions
337[Patents] . With means for liquid contact
338[Patents] . With air pump
339[Patents]HAVING OUTLET AIRWAY
340[Patents] . Pressure regulation
341[Patents] . With air pump
342[Patents] . . And having specific emergency smoke handling structure
343[Patents] . . Having specific air pump actuator
344[Patents] . . Pump induces draft in exit duct
345[Patents] . . Having plural suction intakes
346[Patents] . . Having vibration absorbing or preventing structure
347[Patents] . . Having readily movable air regulating louver,damper, or cover
348[Patents] . . . Continuously horizontal damper panel
349[Patents] . . . Ceiling mounted air pump
350[Patents] . . . Wall mounted air pump
351[Patents] . . . . Plural damper panel
352[Patents] . . . Plural damper panel
353[Patents] . . . Including backdraft preventer
354[Patents] . . Ceiling or wall mounted
355[Patents] . . With movable access cover
356[Patents] . . Having exterior neck with enlarged, weather resistant cover
357[Patents] . Having emergency smoke handling feature
358[Patents] . Having readliy movable air regulating louver, damper, or cover
359[Patents] . . Including backdraft preventer
360[Patents] . . . Including counter balancing means
361[Patents] . . Internal damper
362[Patents] . . . Continuously horizontal damper panel
363[Patents] . . . Pivoted damper panel
364[Patents] . . Along roof ridge
365[Patents] . Along roof ridge
366[Patents] . Slant roof ventilator
367[Patents] . Having specific cover or shield for exterior vent opening
368[Patents] . . Exterior neck with enlarged, weather resistant cover
369[Patents]FIRE DAMPER
370[Patents]MISCELLANEOUS
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CROSS-REFERENCE ART COLLECTIONS
******************************
900[Patents]VENTILATOR USING SOLAR POWER
901[Patents]FOG DISPELLER
902[Patents]AIR RAID SHELTER VENTILATION
903[Patents]FLEXIBLE DUCTS USED FOR CARRYING AIR
904[Patents]MAGNETIC MEANS TO HOLD A DAMPER CLOSED
905[Patents]BLACK OUT MEANS
906[Patents]NOISE INHIBITING MEANS
907[Patents]SEAT
908[Patents]HAVING ROTARY RETARDER
909[Patents]RADON PREVENTION


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Last Modified: 6 October 2000