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"What, sir, would you make a ship sail against the wind and currents by lighting a bonfire under her deck? I pray you, excuse me, I have not the time to listen to such nonsense."
Napoleon Bonaparte ; When told of the Robert Fulton steamboat
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| Number | Title | Issue Date |
| 7431641 | System for controlling distribution of air to different zones in a forced air delivery system Apparatus for controlling the delivery of air in a forced air distribution system having a source of air under pressure (4), a duct system to deliver the air, and a plurality of ports (8) in the duct system with each port defining an air delivery zone ... | 10/07/2008 |
| 7410416 | Plastic HVAC component system and method for installing the same A complete plastic HVAC system assembled using individual plastic components for ensuring the efficient and quiet distribution of air from a central air unit to multiple distribution points and preventing heating and cooling losses, the need for installers to stock ... | 08/12/2008 |
| 7281972 | Ultimate vent An inexpensive fresh air intake pre-filtering device for make-up air is disclosed for use with a circulating forced air heating system that is installed on an outside wall of a building. The device is comprised of a polyethylene material with an outer flange for sec... | 10/16/2007 |
| 6920959 | Inlet and outlet duct units for air supply fan Duct units for delivery of air to an air supply fan and for connecting this fan to an air heater unit are disclosed. The duct unit for delivering air in one version has a narrow first section, a second, transition-type section and a wide sound attenuating, third sec... | 07/26/2005 |
| 6805165 | Adjustable air stream introducing device An adjustable air stream introducing device for reinforcement of a blowing power of a primary air stream flowing through a duct, includes a tubular coupler disposed downstream of the duct to confine an annular space. A surrounding seat member is disposed securely in... | 10/19/2004 |
| 6612923 | Warm tube mixing box A mixer box for mixing two separate sources of air. Air from a first source is fed into a plurality of vented conduits. Each of the vented conduits has at least one vent opening, that allows the air from within the conduits to escape and enter a mixing ch... | 09/02/2003 |
| 6571522 | Covering system for buildings The covering system includes at least one panel capable of being placed in an inclined position with respect to a horizontal. The panel incudes an inner chamber, a plurality of suction apertures through which the inner chamber communicates with a void ins... | 06/03/2003 |
| 6478671 | Air-conditioning system An air-conditioning system alternately produces a cooled air stratum and a heated air stratum as viewed from an air outlet opening, and the guide length a1 of a first guide wall is set from 0.05 time or more to 0.5 times or less than the length L1. The gu... | 11/12/2002 |
| 6106386 | Air flow mixing apparatus A mixing device for mixing two air flows has plural first flexible curtains disposed between first edge regions of alternate pairs of air guides, and a plurality of second flexible curtains disposed between second edge regions of alternate pairs of air gu... | 08/22/2000 |
| 5368521 | Fluid distributor for stratified mixing of air streams A novel plenum chamber and system for the mixing and subsequent distribution of two different fluids. In the preferred example the fluid is air and the chamber mixes fresh and recycled air proportionately and subsequently distributes the air stream throug... | 11/29/1994 |
| 5154666 | Air exchange system for use in multi-story building An air exchange system is disclosed for use in a building having a plurality of stories each having a base floor, finished floor, finished ceiling and rough ceiling. The system comprises a plurality of main distribution ducts each adapted to be located in... | 10/13/1992 |
| 5058492 | Insulated diffuser for evaporative air cooling system A device which permits rapid conversion of an air diffuser in an evaporative air conditioning system during periods of use, to an insulative dampening member during periods of non-use. The device attaches to the opening of outlet air duct of the cooling s... | 10/22/1991 |
| 4657178 | Mixing box An improved mixing box is disclosed. The mixing box comprises an inlet end, an outlet end, a substantially closed first passage to which primary air flows from a primary air inlet and then through the induction means and to and from the outlet end of the ... | 04/14/1987 |
| 4315412 | Air conditioning apparatus utilizing solar energy and method Air conditioning apparatus is disclosed. The apparatus is a terminal of the mixing type, receiving primary conditioned air, and delivering that air or a mixture including that air and recirculated air as required, for air conditioning. The rate at which p... | 02/16/1982 |
| 4181253 | Ceiling air diffuser and induction apparatus The diffuser has outwardly flared lower side walls and an upper vertical wall portion adapted to receive primary air from a supply source. The vertical portion includes a lower extension into the space defined by the lower flared side walls, and the lower... | 01/01/1980 |
| 4120347 | Two-passage pipe, especially for air conditioning installations A two-passage conductor, especially for conveying air in air conditioning installations, which includes a pipe having a flexible air impermeable diaphragm fastened to the pipe along diametrically oppositely located longitudinally extending sections of the... | 10/17/1978 |
| 4084616 | Fluid proportioning device A fluid proportioning device which operates in a linear fashion and has a constant-volume output as a function of damper position. A sheet of flexible material is moved against a plate having two groups of apertures which are in respective fluid connectio... | 04/18/1978 |
| 4084389 | Air conditioning apparatus Air conditioning apparatus is disclosed. The apparatus is a terminal of the mixing type, receiving primary conditioned air, and delivering that air or a mixture including that air and recirculated air as required, for air conditioning. The rate at which p... | 04/18/1978 |
| 4013217 | Double induction air conditioning with fluidic control A double induction mixing box is provided with damperless openings to each of two opposite side passages in the box and fluidic diverter means between a primary air supply to the box and the opposite side passages is used for controlling the diversion of ... | 03/22/1977 |
| 3946647 | Device for preferably cooling a room by a ventilation air stream The throwing length of a stream of air entering a room through a large-area ventilator outlet is controllably increased by including within the aperture of the ventilator at least one air nozzle of adjustable direction and orifice cross-section and suppli... | 03/30/1976 |
| 3935898 | Device for air-conditioning a number of rooms the heat requirements of which are different and vary preferably with respect to time A system for air-conditioning an installation having a number of rooms, the heat requirements of which are different and vary preferably with respect to time, which rooms are connected to a central air-conditioning unit. Light fixtures producing radiation... | 02/03/1976 |
