Class   454	VENTILATION
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CHIMNEY OR STACK

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. (1 indent ) Vehicle

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. (1 indent ) Chimneytop or stacktop structure (e.g., cowl)

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.. (2 indent ) Cap closure

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... (3 indent ) Pivoted

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.... (4 indent ) Plural, separately pivoted portions

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.... (4 indent ) Having remote control

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.. (2 indent ) Inlet and outlet

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... (3 indent ) Having air current responsive adjustment means (e.g., wind vane, etc.)

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.. (2 indent ) Inlet

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... (3 indent ) Having air current responsive adjustment means (e.g., wind vane, etc.)

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.. (2 indent ) With means for mounting on brick-type chimney

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... (3 indent ) Chimneytop structure extends within chimney

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.... (4 indent ) Means for mounting to inner wall

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.. (2 indent ) With rotary means in air current (e.g., fan, etc.)

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... (3 indent ) Driven by external power source

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... (3 indent ) Having air current responsive adjustment means (e.g., wind vane, etc.)

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... (3 indent ) Cage-type blade set

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.... (4 indent ) Including additional blade set

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.. (2 indent ) Having air current responsive adjustment means

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... (3 indent ) Wind vane

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.... (4 indent ) With air current inducing jet

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....• (5 indent ) Centered within induced air current

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.... (4 indent ) Shield

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.... (4 indent ) Hood having outlet opening perpendicular to wind

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... (3 indent ) Current regulator

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.. (2 indent ) Having readily movable air current regulating means

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... (3 indent ) With temperature sensitive release

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... (3 indent ) Continuously horizontal panel

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... (3 indent ) Pivoted

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.... (4 indent ) Plural

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.. (2 indent ) T-top

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.. (2 indent ) Spiral or plural stacked rings

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.. (2 indent ) Four-side outlets with shield

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.. (2 indent ) Spaced cap

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... (3 indent ) And spaced shield

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.... (4 indent ) And skirt deflector extending outwardly from chimney or stack

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... (3 indent ) And skirt deflector extending outwardly from chimney or stack

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.. (2 indent ) Having air current inducing jet

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... (3 indent ) Plural, in-series jets

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. (1 indent ) Having liquid drain

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. (1 indent ) Having internal air current guide

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. (1 indent ) Having flue heater

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. (1 indent ) Having lining or sleeve

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.. (2 indent ) Including breech opening

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.. (2 indent ) Pressurized air lining

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.. (2 indent ) Axially connected chimney or stack sections

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EXTERIOR VAULT OR MANHOLE COVER

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WORKSTATION VENTILATOR (E.G., HOOD, OFFTAKE, ETC.)

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. (1 indent ) Spray booth

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.. (2 indent ) Having air inlet separate from access opening

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... (3 indent ) Ceiling inlet

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.. (2 indent ) With outlet air treatment means

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... (3 indent ) With means for liquid contact

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.... (4 indent ) Spraying nozzle

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. (1 indent ) Covered workbench chamber (e.g., fume hood, etc.)

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.. (2 indent ) Having air inlet separate from access opening

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... (3 indent ) Including flow adjustment means

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.... (4 indent ) Responsive to position of access door

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... (3 indent ) And air outlet through access opening

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.. (2 indent ) Having outlet airway flow adjustment means

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... (3 indent ) Plural airways with adjustable distribution means

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. (1 indent ) Movable

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.. (2 indent ) Having sliding, communication, airway duct sections

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.. (2 indent ) Having canopy exhaust hood

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. (1 indent ) Having inlet airway

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. (1 indent ) Having canopy exhaust hood

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ELEVATOR

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VEHICLE (E.G., AUTOMOBILE, ETC.)

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. (1 indent ) Pressure regulation

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.. (2 indent ) Ventilation of aircraft cabin

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... (3 indent ) Auxiliary control system

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... (3 indent ) Mechanical operation of control system (e.g., by bellows or diaphragm, etc.)

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... (3 indent ) Control system having electrical or electronic component

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. (1 indent ) Having automatic control means

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. (1 indent ) Aircraft

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.. (2 indent ) Freight

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. (1 indent ) Waterborne

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.. (2 indent ) Freight

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... (3 indent ) Nonperishable bulk foodstuff (e.g., grain ship)

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.. (2 indent ) Porthole ventilator

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.. (2 indent ) With moisture deflector or drain

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. (1 indent ) Railcar, bus, or trailer

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.. (2 indent ) Locomotive cab

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... (3 indent ) Condensation preventer (e.g., defroster, etc.)

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... (3 indent ) Including dust guard for cab window opening

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.. (2 indent ) Sleeping car

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.. (2 indent ) Freight

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... (3 indent ) Ice-bunker closure (e.g., for refrigerated railcar)

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... (3 indent ) Refrigerated or heated

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.... (4 indent ) With air pump

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... (3 indent ) With air pump

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.. (2 indent ) Condensation preventer (e.g., defroster, etc.)

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.. (2 indent ) Having exterior cap closure for vent

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.. (2 indent ) Having window or entry-door ventilation structure

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... (3 indent ) Including dust guard for window opening

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.... (4 indent ) Inside of window

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.... (4 indent ) Outside of window

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.. (2 indent ) Having forced recirculation

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... (3 indent ) Having forced recirulation means alone

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.... (4 indent ) Wind-operated fan

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.... (4 indent ) Wheel-axle operated fan

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.. (2 indent ) Having both inlet and outlet airways

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... (3 indent ) Including unitary inlet and outlet housing

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... (3 indent ) With air pump

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.... (4 indent ) Wind or wheel-axle operated

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.. (2 indent ) Having inlet airway

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... (3 indent ) Including specific air distributor

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.... (4 indent ) Having adjustable deflector

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... (3 indent ) Liquid contact

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... (3 indent ) With deflecting separator-type filter

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... (3 indent ) With air pump

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.... (4 indent ) Wind operated

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.... (4 indent ) Wheel-axle operated

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.. (2 indent ) Having outlet airway

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... (3 indent ) With current inducing jet

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... (3 indent ) With air pump (e.g., wind or wheel-axle operated, etc.)

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. (1 indent ) Freight

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. (1 indent ) Having external connection

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. (1 indent ) Seat structure

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. (1 indent ) Condensation preventer (e.g., defroster, etc.)

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.. (2 indent ) Air directed between double paned window

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.. (2 indent ) Air directed at window exterior

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.. (2 indent ) Side or rear window

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.. (2 indent ) Having sweeping air distributor

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.. (2 indent ) Having means for combining heated and unheated air

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.. (2 indent ) Having dashboard air distributor (e.g., for windshield, etc.)

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. (1 indent ) Means for open window (e.g., deflector, etc.)

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.. (2 indent ) Sunroof

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.. (2 indent ) Windshield or rear window

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.. (2 indent ) At upper edge of sliding window

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... (3 indent ) Having means to selectively adjust airflow

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... (3 indent ) Having plural air passages

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.. (2 indent ) Pivoted window

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.. (2 indent ) Adjacent front edge of window

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. (1 indent ) Roof structure

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.. (2 indent ) Including duct extending along roof

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... (3 indent ) Having exterior inlet opening over windshield

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. (1 indent ) Having forced recirculation

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.. (2 indent ) Forced recirculation alone or agitating fan

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. (1 indent ) Having both inlet and outlet airways

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.. (2 indent ) Including unitary inlet and outlet housing

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. (1 indent ) Having inlet airway

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.. (2 indent ) Including duct extending along floor

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.. (2 indent ) Selective inlet, outlet, and closure

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.. (2 indent ) Including exterior cowl inlet

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... (3 indent ) With moisture deflector or drain

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... (3 indent ) Ducting to heat exchanger

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... (3 indent ) Having exterior door

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.. (2 indent ) Including exterior windshield inlet

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.. (2 indent ) Including exterior rear or rear-side inlet

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.. (2 indent ) Including specific air distributor

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... (3 indent ) Sweeping type

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... (3 indent ) Having swiveling nozzle

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... (3 indent ) Having adjustable deflector

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.. (2 indent ) With air treatment means

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... (3 indent ) Liquid contact

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... (3 indent ) Porous filter

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... (3 indent ) Heating

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.... (4 indent ) Having means for combining heated and unheated air

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.... (4 indent ) Having heat exchange core

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. (1 indent ) Having outlet airway

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.. (2 indent ) With current inducing jet

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.. (2 indent ) Exterior side outlet

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.. (2 indent ) Exterior rear outlet

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VEHICULAR TUNNEL

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. (1 indent ) With air pump

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MINE

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. (1 indent ) With partition means (e.g., brattice, etc.)

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.. (2 indent ) Flexible sheet

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. (1 indent ) Having inlet and outlet ductwork

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. (1 indent ) Having inlet ductwork

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STORAGE AREA FOR PERISHABLES

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. (1 indent ) Harvested crop ventilation

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.. (2 indent ) Having perforated or slotted duct contacting crop

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... (3 indent ) Including insertion means

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... (3 indent ) Horizontal and vertical perforated or slotted ducts

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.... (4 indent ) With air pump

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... (3 indent ) Horizontal duct

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.... (4 indent ) With air pump

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... (3 indent ) With air pump

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.. (2 indent ) Granular crop or corn ears

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. (1 indent ) Provision safe

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ELECTRONIC CABINET

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HOLLOW PARTITION

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. (1 indent ) Having blower

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CLEAN ROOM

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HAVING PROTECTING AIR CURRENT

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. (1 indent ) Surrounding protected area

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. (1 indent ) Including plural, layered currents

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. (1 indent ) Including suction outlet

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. (1 indent ) Including current adjusting mean

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. (1 indent ) Cabinet enclosure (e.g., display case, etc.)

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BLAST OR SHOCK WAVE PREVENTION

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MEANS COMBINED WITH DOOR

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MEANS COMBINED WITH WINDOW

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. (1 indent ) For bed or couch

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. (1 indent ) Condensation preventer

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. (1 indent ) Skylight

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. (1 indent ) With air pump

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.. (2 indent ) Cooling air conditioner

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... (3 indent ) Having readily moveable flow control means

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... (3 indent ) With extensible side panel

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... (3 indent ) With mounting or support means

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.. (2 indent ) Recirculation means

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.. (2 indent ) With specific noise inhibiting structure

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.. (2 indent ) With specific filtering means

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.. (2 indent ) Propeller fan having rotary axis perpendicular to window

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... (3 indent ) With mounting means for pump reversal

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... (3 indent ) With extensible side panel

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. (1 indent ) Having air passage in sash

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. (1 indent ) Having air passage means within, attaching to, or replacing pane

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. (1 indent ) Having air passage at window top

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. (1 indent ) Having air passage between sill and bottom of sash

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.. (2 indent ) Including wall sloping downward from window

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.. (2 indent ) Including wall for upwardly deflecting inlet air

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... (3 indent ) Having adjustable angle or swingable mounting

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.... (4 indent ) Including collapsible or flexible, perpendicular side wall

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... (3 indent ) Having readily moveable air regulating means

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... (3 indent ) Having slidably interconnected sections

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.. (2 indent ) Including louvers

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.. (2 indent ) Including readily moveable air regulating means

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.. (2 indent ) With means for liquid contact

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. (1 indent ) Having louvers

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. (1 indent ) Tilting pane window

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. (1 indent ) Having wind deflector

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. (1 indent ) Including backdraft preventer

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HAVING FORCED RECIRCULATION

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. (1 indent ) Including automatic control means

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. (1 indent ) Forced recirculation alone

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.. (2 indent ) Having recirculating duct connecting upper and lower room air strata

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.. (2 indent ) Having plural or branched recirculation ducts

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.. (2 indent ) For use with heating or cooling means

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. (1 indent ) Including unitary housing having both inlet and outlet airways

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.. (2 indent ) Having air pump means for both airways

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. (1 indent ) For use with heating and cooling means

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HAVING BOTH INLET AND OUTLET AIRWAYS

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. (1 indent ) Pressure regulation

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. (1 indent ) Including automatic control means

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. (1 indent ) With wind-operated air pump

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. (1 indent ) Including unitary inlet and outlet housing

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.. (2 indent ) Rooftop

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.. (2 indent ) Sleeved vent for ceiling, wall, or floor (e.g., thimble)

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... (3 indent ) With air pump means for both inlet and outlet airways

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.. (2 indent ) Air distributor with return vent (e.g., register, etc.)

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... (3 indent ) Baseboard type

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... (3 indent ) Floor type

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... (3 indent ) Ceiling type

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.. (2 indent ) With air pump

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. (1 indent ) Natural ventilation including air passage through rooftop (i.e., no air pump)

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. (1 indent ) With air pump means

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.. (2 indent ) For both inlet and outlet airways

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.. (2 indent ) For outlet airway

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HAVING INLET AIRWAY

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. (1 indent ) Pressure regulation

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. (1 indent ) Including automatic control means

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.. (2 indent ) Emergency smoke or fire responsive valve

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.. (2 indent ) Air temperature responsive

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. (1 indent ) Including backdraft preventer

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. (1 indent ) Through roof eaves or rafters

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. (1 indent ) Including structure for mixing plural air streams together

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.. (2 indent ) And having specific noise inhibiting structure

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.. (2 indent ) With shaped nozzle

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... (3 indent ) And readily movable air regulating louver, damper, or cover

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.. (2 indent ) With readily movable air regulating louver, damper, or cover

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... (3 indent ) Pivoted

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.... (4 indent ) Plural

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....• (5 indent ) Including parrallel louver vanes

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.. (2 indent ) With air pump

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. (1 indent ) Sleeved vent for ceiling, wall, or floor (e.g., thimble)

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.. (2 indent ) Wall type

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... (3 indent ) With air pump

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... (3 indent ) Having adjustable valve

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.... (4 indent ) Sliding or axially moveable

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. (1 indent ) Including specific cover or shield for exterior vent opening

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.. (2 indent ) Wall type

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... (3 indent ) Louver

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.... (4 indent ) Having moveable vanes

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.... (4 indent ) Having serially aligned vane sets

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.... (4 indent ) Formed in sheet member

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.... (4 indent ) Having specific vane supporting means

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....• (5 indent ) In between vane ends

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.... (4 indent ) With screen mounting means

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. (1 indent ) Including specific air distributor (e.g., register, etc.)

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.. (2 indent ) Sweeping type

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.. (2 indent ) Having airway joint with ball or cylinder rotatable in a socket

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.. (2 indent ) Baseboard type

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... (3 indent ) Including portion or element movable during normal use

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.. (2 indent ) Floor type

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... (3 indent ) Having adjustable valve

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... (3 indent ) With means for liquid contact

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.. (2 indent ) Ceiling type

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... (3 indent ) With light fixture

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.... (4 indent ) Air passes over lamp

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.... (4 indent ) Having adjustable valve

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... (3 indent ) Including perforated or porous element

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.... (4 indent ) Having portion or element movable during normal use

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....• (5 indent ) Axially movable or sliding valve

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... (3 indent ) Including plural vanes

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.... (4 indent ) Concentric

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... (3 indent ) Including elongated output slot

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.... (4 indent ) Single, annular output slot

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.... (4 indent ) Having portion or element movable during normal use

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....• (5 indent ) Pivoted

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.. (2 indent ) Air nozzle

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.. (2 indent ) Having air duct extending into room

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.. (2 indent ) Having air deflecting wall extending into room

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.. (2 indent ) Having vanes or elongated output slots extending radially

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.. (2 indent ) Louvered air distributor

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... (3 indent ) Concentric

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.... (4 indent ) Having separate, adjustable internal damper

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.... (4 indent ) Having adjustable vane

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... (3 indent ) Moveable

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.... (4 indent ) Aligned mutiple, movable sets of vanes

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....• (5 indent ) Serially arranged sets

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.... (4 indent ) Repositionable set

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.... (4 indent ) Rotating disks

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.... (4 indent ) Louver vanes form valve

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.... (4 indent ) Plural vanes pivoting about individual axes

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....• (5 indent ) Pivot at leading or trailing vane edge

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... (3 indent ) In housing within room

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.. (2 indent ) With adjustable valve

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... (3 indent ) Axially movable

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... (3 indent ) Sliding

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... (3 indent ) Plural blades pivoting along parrallel axes

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.... (4 indent ) Adjacent blades pivot in opposing directions

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... (3 indent ) Valve opens by pivoting in upstream direction

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.. (2 indent ) With means for liquid contact

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.. (2 indent ) With air pump

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.. (2 indent ) Having register box, frame, or grating

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... (3 indent ) Including specific grating or grating mounting structure

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.... (4 indent ) Readily moveable grating

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. (1 indent ) With adjustable valve (e.g., damper, etc.)

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.. (2 indent ) Axially movable or sliding

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.. (2 indent ) Plural blades pivoting along parallel axes

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... (3 indent ) Adjacent blades pivot in opposing directions

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. (1 indent ) With means for liquid contact

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. (1 indent ) With air pump

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HAVING OUTLET AIRWAY

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. (1 indent ) Pressure regulation

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. (1 indent ) With air pump

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.. (2 indent ) And having specific emergency smoke handling structure

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.. (2 indent ) Having specific air pump actuator

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.. (2 indent ) Pump induces draft in exit duct

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.. (2 indent ) Having plural suction intakes

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.. (2 indent ) Having vibration absorbing or preventing structure

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.. (2 indent ) Having readily movable air regulating louver,damper, or cover

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... (3 indent ) Continuously horizontal damper panel

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... (3 indent ) Ceiling mounted air pump

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... (3 indent ) Wall mounted air pump

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.... (4 indent ) Plural damper panel

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... (3 indent ) Plural damper panel

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... (3 indent ) Including backdraft preventer

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.. (2 indent ) Ceiling or wall mounted

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.. (2 indent ) With movable access cover

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.. (2 indent ) Having exterior neck with enlarged, weather resistant cover

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. (1 indent ) Having emergency smoke handling feature

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. (1 indent ) Having readliy movable air regulating louver, damper, or cover

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.. (2 indent ) Including backdraft preventer

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... (3 indent ) Including counter balancing means

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.. (2 indent ) Internal damper

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... (3 indent ) Continuously horizontal damper panel

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... (3 indent ) Pivoted damper panel

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.. (2 indent ) Along roof ridge

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. (1 indent ) Along roof ridge

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. (1 indent ) Slant roof ventilator

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. (1 indent ) Having specific cover or shield for exterior vent opening

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.. (2 indent ) Exterior neck with enlarged, weather resistant cover

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FIRE DAMPER

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MISCELLANEOUS

	CROSS-REFERENCE ART COLLECTIONS

900

VENTILATOR USING SOLAR POWER

901

FOG DISPELLER

902

AIR RAID SHELTER VENTILATION

903

FLEXIBLE DUCTS USED FOR CARRYING AIR

904

MAGNETIC MEANS TO HOLD A DAMPER CLOSED

905

BLACK OUT MEANS

906

NOISE INHIBITING MEANS

907

SEAT

908

HAVING ROTARY RETARDER

909

RADON PREVENTION

	FOREIGN ART COLLECTIONS

FOR000

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