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"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 7341698 | Electrical evaporator including fan and louver structure An evaporator, for use with a bottle containing a substance to be evaporated and a wick that has its lower portion disposed within the bottle and its upper portion protruding from the bottle, includes a housing in which the bottle is retained, a fan, disposed within... | 03/11/2008 |
| 7332006 | Ventilating and air purifying device Ventilating and air purifying device including a case having a blower therein provided to a ceiling or a wall, a first flow passage provided between the blower and a room for making an outdoor, the blower, and the room in communication, a second flow passage for mak... | 02/19/2008 |
| 7160006 | Clip for light fixture and a light fixture apparatus A clip to be installed on a diffuser such that a lip defined by the rim of the diffuser is positioned in a cavity of the clip, with two arms defined by the clip capturing the rim of the diffuser and a leg defined by the clip extending into the hollow center of the d... | 01/09/2007 |
| 7107775 | Cold control damper assembly The invention consists of a unit 10 including a two-piece, snap together housing made of elements 40 and 50 which forms the orifice seat and the transitions which direct moisture away from the seat area and prevents the accumulation of moisture ... | 09/19/2006 |
| 7094142 | Portable device with interchangeable air cleaning modules for cleaning the air outside of an existing enclosed space and delivering the cleaned air into the existing enclosed space A portable device that is placed between the ambient air outside an existing enclosed space and the existing enclosed space that pulls the ambient air through an interchangeable array of air cleaning modules and delivers the cleaned air from the air cleaning modules... | 08/22/2006 |
| 6986708 | Method and apparatus for delivering conditioned air using dual plenums Multiple methods of supplying conditioned air to a room and components therefor are provided. A dual plenum system has a supply plenum for delivering supply air to the room and a return plenum for returning room air to an air handling unit. Conduits are provided to ... | 01/17/2006 |
| 6945866 | Method and apparatus for delivering conditioned air using pulse modulation A method and apparatus for delivering conditioned air using short duty cycles during which a damper is fully open for a time and fully closed for the remaining time. Conditioned air is continuously supplied to a plenum at low pressure and is applied to the space whe... | 09/20/2005 |
| 6802361 | Ceiling panel structure for a ceiling-mounted air-conditioning apparatus or the like A ceiling panel structure (10, 310) is mounted on a ceiling surface (201) downstream of an air-outlet (211) of a ceiling-mounted air-conditioning apparatus (indoor unit) (200) having an air-inlet (210) at a central portion and the ... | 10/12/2004 |
| 6685556 | Automatic modular outlets for conditioned air, dampers, and modular return air grills A module for use as a part of an outlet for conditioned air and to support, be supported by, or connected to another part of the outlet. The module comprises a module frame and at least one deflection damper pivotally mounted vertically within the module ... | 02/03/2004 |
| 6488578 | Faceplate of a blower for an air conditioner A faceplate of a blower for an air conditioner in the present invention relates to a faceplate juxtaposed with at least one wind outlet and at least one wind inlet, wherein each of the wind outlets and each of the wind inlets are respectively disposed wit... | 12/03/2002 |
| 6447389 | Wind-hole base of a blower for an air conditioner A wind-hole base of a blower for an air conditioner includes a faceplate, an inlet cover plate, two outlet bases, and two outlet case plates and two fix plates. The faceplate has two outlets and an inlet, a filter net is provided in the inlet, and a conne... | 09/10/2002 |
| 6379241 | Wind-hole device of a ventilator for an air conditioner A wind-hole device of a ventilator for an air conditioner includes a face plate having wind-outlets and wind-inlets, a cover plate positioned on the wind-inlets and having vent holes, plural shells fitted respectively with the wind-outlets of the face pla... | 04/30/2002 |
| 6370906 | Wind inlet and outlet system for an air conditioner A wind inlet and outlet case for a blower of an air conditioning system is connected to an inner machine, including a body and a faceplate. The body is separated into a wind inlet room and a wind outlet room with a lengthwise vertical wall, and the wind i... | 04/16/2002 |
| 6287191 | Combination bath fan, register box, air conditioning and heating boot A combination bath fan, register box, air conditioning and heating boot requires one opening on the wall or the ceiling of the bathroom, thus reducing the installation and maintenance costs associated with the ventilation of the bathroom. The combination ... | 09/11/2001 |
| 6264551 | Concentric air diffuser A concentric air diffuser for use with climate control systems to direct air to desired locations within the interior of a building and return air to the system includes a perforated plate between a supply inlet and supply vents. The perforated plate assi... | 07/24/2001 |
| 6260375 | Air conditioner blowing cool air to many directions An air conditioner blowing cool air to many directions includes a housing having a hollow chamber, a face plate formed in a bottom of the housing. The face plate has a wind inlet and plural wind outlets. A wind box is provided on the wind inlet and in the... | 07/17/2001 |
| 5992412 | Filtered smoke screen A smoke diverter system is provided including an elongated ceiling housing, an elongated outlet slot formed along a length of a bottom face of the ceiling housing. An elongated inlet slot is formed along a length of one of a pair of side faces of the ceil... | 11/30/1999 |
| 5323761 | Ventilation apparatus A ventilation apparatus includes an inlet air device (14), an exhaust air device (15) and a mantle (13), which constitutes a hood where the removable air is collected and wherefrom the removable air is discharged by the exhaust air device (15). The inlet ... | 06/28/1994 |
| 4955997 | Flush mounted ceiling air cleaner An air cleaner device with the return grill and supply grill separated by a length of flexible insulated hose. The length of separation is sufficient to achieve maximum air circulation within the room. Multiple supply grills may be used to achieve more ex... | 09/11/1990 |
| 4258615 | Ceiling construction for a heating, ventilation and air conditioning system In a building having a heating, ventilation and air conditioning system, exterior walls and at least one story having a true ceiling, a suspended ceiling, and lighting fixtures occupying openings in the suspended ceiling, the true and suspended ceilings b... | 03/31/1981 |
| 3945306 | Integrated ceiling light and air-circulation arrangement In the room of a building, a channel extends across above ceiling level and supports ceiling panels which form the ceiling itself, part of the channel being concealed by ceiling panels extending beneath the channel. Lighting elements are mounted in the ot... | 03/23/1976 |
