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| Number | Title | Issue Date |
| 7074124 | Ventilation system The present invention relates to a ventilation system that allows air to circulate in a building but excludes pests such as birds, insects, moths and flies to enter the building. The ventilation system includes at least one vent comprising an aperture in the roof of... | 07/11/2006 |
| 4487214 | Damper blade actuating mechanism Damper blade actuator assembly for use in association with a damper having damper frame means adapted to be associated with an air duct system, and defining an air flow opening, and movable damper blade means operable for partially or completely obstructi... | 12/11/1984 |
| 4476774 | Portable universal wind deflector A universal wind deflector for use in a vehicle window when the window is open. The deflector has a body that has a first and a second planar portion integrally joined along a line contained by both the first and second planar portions. This arrangement d... | 10/16/1984 |
| 4466341 | Fume hood energy controller A control system for a fume hood, wherein limit switches sense the position of the sash, and pressure and light sensors monitor pressure changes in the fume hood and ambient light. A low volume fan continously draws air through the fume hood. When the sas... | 08/21/1984 |
| 4459901 | Rear side window demister A pillar garnish cooperates with a center pillar to define therebetween a space which serves as a demister duct for conveying hot, dry air directed from a side demister nozzle to a rear side window.... | 07/17/1984 |
| 4457215 | Duct air cover A duct air cover is disclosed which allows for the easy escape of air when it is being forced under pressure but cuts off drafts of air not under pressure. Two lightweight air deflector flaps are hinged at opposing sides of an air duct. When temperature c... | 07/03/1984 |
| 4452391 | Air regulating device An automatic air regulating device for use in a forced air heating or cooling system whereby air vents or ducts leading to various rooms within a building may be automatically opened or closed to conserve energy. The automatic air regulating device of the... | 06/05/1984 |
| 4452129 | Spring-rodless hingeless ventilator A hingeless ventilator having a frame attachable to a wall of a compartment about an opening therein, a closure member swingable against a side of the frame for opening and closing the opening, guide members fixed to and instanding from an opposite side o... | 06/05/1984 |
| 4450934 | Tractor muffler structure This invention relates to a tractor muffler structure that is mounted in an upright position and operates to keep moisture and foreign particles from entering the internal workings of a tractor cab engine. The tractor muffler structure includes (1) an inl... | 05/29/1984 |
| 4450756 | Fume exhauster device A fume exhauster device comprising first means for generating a first air current directed substantially axially toward the first means, and second means for generating a second air current concentrically surrounding the first air current and flowing in c... | 05/29/1984 |
| 4450755 | Air blower arrangement for producing air screen and related method A blower apparatus is provided especially suitable for an air curtain, screen or barrier. The apparatus includes a blower in the form of a plurality of blades arranged to describe a cylinder. A guide encircles the blower, but is open-ended thereupon and e... | 05/29/1984 |
| 4448112 | Ventilator A ventilator for air ventilation between a delimited space and the outside air. Extending through the ventilator is a connecting passage (4) which is divided into a plurality of passage sections (10) which are delimited from one another by means of at lea... | 05/15/1984 |
| 4448111 | Variable venturi, variable volume, air induction input for an air conditioning system A unit for heating or cooling multiple rooms including a plenum diffuser mounted parallel within a ceiling runner and supported by hangars within the ceiling plenum. Each unit includes a round inlet collar, an elongated plenum to form a "Venturi," hinged ... | 05/15/1984 |
| 4445426 | Slanted housing fan enclosure The present invention is for a housing structure for enclosing a fan assembly comprising a drive motor and propeller fan coupled thereto, the housing structure being mounted externally of a building at a downwardly slanted angle thereto so that as airflow... | 05/01/1984 |
| 4441402 | Aesthetic acoustical air distribution duct system The duct system includes rectangular duct sections suspended from a ceiling of a room, discharging conditioned air from the top, and being formed of fabricated acoustical fibrous board sound absorbent with respect to sounds emanating from sources in the r... | 04/10/1984 |
| 4441404 | Ventilation apparatus Ventilating apparatus suitable for use with double glazed panels comprises an elongate cylindrical member having an outwardly circumferentially extending flange and adapted to receive removably a ventilating component therein and an annular member thereon... | 04/10/1984 |
| 4440070 | Mobile adjustable curtain apparatus for use in room and pillar coal mining ventilation system A section of brattice is mounted on a centrally-wheeled cart. This brattice has a frame that permits the curtain section to be extended and retracted vertically, in order to reduce its height for movement and to adjust its height for engagement of the min... | 04/03/1984 |
| 4438680 | Greenhouse construction provided with special ridge for ventilation A greenhouse construction is provided for support against a supporting structure such as a house. The greenhouse construction comprises a glazing structure consisting of glazing and glazing bars. There is also provided a ridge which supports the glazing s... | 03/27/1984 |
| 4437392 | Sweeping air stream apparatus and method In an automobile air flow system, air is forced through an air outlet element or nozzle (13, 21, 24) in a sweeping air stream pattern by an oscillating reed or vane member (42) supported solely at the downstream end (43) for air initiated oscillatory move... | 03/20/1984 |
| 4437394 | Directional air flow fan The present invention provides a fan structure having a housing and vane arrangement adapted to oscillate relative to the housing. The fan motor is used to operate both the fan blade and the vane arrangement. The structure includes a drive system having a... | 03/20/1984 |
| 4437393 | Assembly compartment arranged between an engine compartment or trunk and a splash panel of a motor vehicle An aggregate space or assembly compartment arranged between an engine compartment or a trunk and a splash panel of a motor vehicle. The aggregate space is closed off by means of a hood which can be swung upwardly and has an air inlet slot between an end e... | 03/20/1984 |
| 4436022 | Fume hood incorporating high efficiency auxiliary air plenum An auxiliary air fume hood provided with an improved airflow system for controlling the passage of air through an auxiliary air housing and orienting the flow of air in front of the face of the hood. The hood is designed to capture the auxiliary air throu... | 03/13/1984 |
| 4436021 | Chimney cap In a chimney cap for providing coverage for the upper end of a chimney flue, the cap includes a cover, a band arranged therebelow, sufficient space in between the cover and band to allow the development of draft for removal of smoke and fumes, a foraminou... | 03/13/1984 |
| 4434711 | Fume hood with damper controlled baffles and method A fume hood having top and rear baffle systems fixedly secured within a housing of the fume hood to provide a passage for lighter than air fumes along the top baffle and a passage for heavier than air fumes along the rear baffle. A movable damper selectiv... | 03/06/1984 |
| 4434710 | Grille mounting means and method Apparatus and a method are disclosed for mounting a grille assembly to a sleeve designed for installation of an air conditioning unit. Rotatable mounting channels are secured to brackets of the grille assembly and may be manipulated from the interior of t... | 03/06/1984 |
| 4432870 | Sludge removal apparatus Sludge removal apparatus is provided for new or existing spray coating booths, degreasing tanks, phosphate tanks, plating tanks or the like to remove sludge from the surface of a liquid in the tank. Preferably, a sludge removal tank is disposed adjacent t... | 02/21/1984 |
| 4432273 | Fan powered roof venting method and apparatus A roof vent for flat built-up roofs, having a truncated pyramid-shaped air stack with a protective cap and an internal fan for inducing upward air flow through a check valve at the upper end of the stack. A solar panel provides power for operating the fan... | 02/21/1984 |
| 4430929 | Ventilation mechanism A ventilation mechanism to be mounted in a window opening on a front lateral side of a motor vehicle, including a bracket adapted to be fixed in the window opening, a valve member supported on the bracket and movable between two positions for opening and ... | 02/14/1984 |
| 4428279 | Ventilation register To avoid or at least substantially reduce heat losses occurring with conventional registers ventilation, a register is disclosed which is assembled of two basic bodies supporting each a shutter and connected to each other through a thermally insulating la... | 01/31/1984 |
| 4428278 | Emergency ventilation control apparatus for animal confinement house An apparatus responsive to electric power failure for opening curtains or doors normally covering ventilation openings in a confinement house of the type used for raising poultry and livestock is disclosed. An electromagnet (59) is provided which is energ... | 01/31/1984 |
| 4428277 | Oscillating reed and method There is disclosed an oscillating reed particularly for use in generating a sweeping or oscillating air flow pattern which is rendered clickless by limiting directions of bending of the reed element to an axis transverse to the direction of air flow. This... | 01/31/1984 |
| 4426918 | Proportioning air diffuser and system A proportioning air diffuser system, and an air diffuser therefor, for venting air from a dynamic plenum having areas of relatively greater and lesser static pressure. Each diffuser has a plurality of selectively adjustable vent openings, and a correspond... | 01/24/1984 |
| 4425840 | Blower Herein disclosed is a blower which includes an axial flow fan, a body case defining a wind tunnel for the axial flow fan, a wind deflector mounted in the front opening of the wind tunnel for free rotations therein, and a guard mounted in the rear opening ... | 01/17/1984 |
| 4423668 | Universal air deflector The bottom of a L-shaped air deflector is held against the top of an inverted L-shaped holding device by a bolt and wingnut. Adjustment holes in the horizontal part of the air deflector and holding device allow adjustment of the air deflector forward or b... | 01/03/1984 |
| 4423669 | Air curtaining apparatus An air curtaining apparatus is disclosed that forms a U-shaped air curtain around a steam and heat-emitting piece of machinery, such as a garment form finisher, to protect an operator from heat and moisture emitted during operation of the form finisher wh... | 01/03/1984 |
| 4419926 | ESC energy recovery system for fuel-efficient aircraft The invention is an energy recovery system (20) which uses excess air emanating from an aircraft cabin (16) to drive a turbo-compressor unit (30). The outlet air from the compressor (26) of turbo-compressor unit (30) is optionally fed, either around or th... | 12/13/1983 |
| 4416192 | Multi-directional nozzle assembly for a fluid dispensing duct system A multi-directional nozzle assembly for a fluid dispensing duct system, comprising a housing structure having at least three discrete sections arranged in parallel in a lateral direction of the housing structure and consisting of first and second sections... | 11/22/1983 |
| 4413551 | Ventilator grill A ventilator grill for a motor vehicle interior comprises a front plate fixed to a fascia panel parallel rear plate movable relative thereto and connected to a ventilation hose. The front and rear plates define two arrays of apertures and are spaced apart... | 11/08/1983 |
| 4413428 | Hair dryer casing A hair dryer apparatus includes a casing in which an inner space is provided for receiving the head of the person whose hair is to be dried. A support member, which includes a motor-driven fan and a heating element, further includes a bow-shaped member wh... | 11/08/1983 |
| 4413550 | Ventilation system for the passenger compartment of a motor vehicle The system comprises means for supplying into the inner space of the passenger compartment two series of air flows, and namely a first series of substantially pulsating air flows, each of which pulsating air flows is cyclically interrupted for a pre-estab... | 11/08/1983 |
