| Patent Number |
Title Of Patent |
Date Issued |
| 6929452 |
Plenum fan banding |
August 16, 2005 |
| Plenum fan banding that effectively changes the width of the fan blades in a plenum fan for a HVAC unit. A removable and replaceable band attaches to the back of a fan wheel of the plenum fan so that the band is located within the circle of the fan blades and extends outward perpendicula |
| 6840021 |
System for installing suspended ceiling |
January 11, 2005 |
| A system for installing suspended ceilings in large commercial buildings employing t-shaped main and intersecting branch ceiling joists. The main joists are suspended from the purlins of the building by upper brackets that secure to the purlins and by lower brackets that secure to the |
| 6802543 |
Door handle |
October 12, 2004 |
| A door handle system for a door employing a plurality of door handles that operate in unison. Each door handle comprised of a lever with a perpendicular shaft, and the shaft extending through sequentially and securing together the following additional elements of the door handle to i |
| 6792767 |
Controls for air conditioner |
September 21, 2004 |
| A control system for a HVAC unit for controlling the humidity and temperature of interior building space at desired levels regardless of the outside temperature and humidity conditions. This system is more efficiently so that it operates with less energy consumption than current HVAC |
| 6729096 |
System for installing suspended ceiling |
May 4, 2004 |
| A system for installing suspended ceilings in large commercial buildings employing t-shaped main and intersecting branch ceiling joists. The main joists are suspended from the purlins of the building by upper brackets that secure to the purlins and by lower brackets that secure to the |
| 6715312 |
De-superheater for evaporative air conditioning |
April 6, 2004 |
| An evaporative condensing air conditioning system employing a de-superheater and mist eliminator located between the air fan on an evaporative cooler and a spray tree that delivers water 20 as a coolant on the exterior surfaces of a condenser coil. The de-superheater receives superhe |
| 6437469 |
Heat dissipating collar for motor |
August 20, 2002 |
| A heat dissipating collar 10 for a motor 12 that consists of two identical halves 14A and 14B removably secured together at their two sets of mating ends, set 16J and 18S and set 16S and 18J. Each half 14A and 14B has a base portion 20A and 20B, respectively, with an arcuate internal sur |
| 6431979 |
Wall curb for HVAC system |
August 13, 2002 |
| A wall curb 10 for attachment to the exterior wall 32 of a building to removably secure a wall mounted HVAC unit 38 to the exterior surface 44 of the wall 32. The wall curb 10 serves to attach the supply air duct 34 from within the building to the supply air opening of HVAC unit 38 and t |
| 5839505 |
Dimpled heat exchange tube |
November 24, 1998 |
| An S-shaped heat exchange tube with improved heat exchange efficiency. The tube is provided with a quartet of entry dimples in a first segment of the tube adjacent an inlet end of the tube, a first series of dimple pairs in a second segment of the tube and a second series of dimple pairs |
| 5826641 |
Air conditioner with heat wheel |
October 27, 1998 |
| A method and device for concurrently transferring sensible heat from the warmer of either an incoming outside airstream or an outgoing exhaust airstream to the other stream and transferring latent heat from the wetter of either the incoming outside airstream or the outgoing exhaust airst |
| 5738167 |
Blower fan housing assembly |
April 14, 1998 |
| An energy efficient housing assembly employing a single inlet backwardly inclined blower fan for use in commercial HVAC units. The housing assembly is provided with a slanted wall to which a fan supply motor is slidably mounted. The slanted wall, in conjunction with an opposite non-paral |
