| Patent Number |
Title Of Patent |
Date Issued |
| 6361432 |
Air diffuser with air flow regulator |
March 26, 2002 |
| A diffuser adapted to regulate air flow from an underfloor air distribution system. A grille sits on a dust receptacle or basket-shaped housing that is supported by a mounting assembly in the floor. A flow regulator or damper nests inside the housing. Both the housing and the flow regula |
| 6290596 |
Air diffuser, and mold and method for its production |
September 18, 2001 |
| An air diffuser for underfloor air and electrical distribution systems, which can be rapidly converted to a cable grommet assembly, is provided with a diffuser grille having generally helical slots that produce a swirling air flow pattern with low impulse, low turbulence and high ind |
| 6149515 |
Combination moisture elimination louver and air flow sensor and method |
November 21, 2000 |
| A moisture elimination louver includes a housing which allows fluid flow between an air inlet opening on an upstream side of the housing and an air outlet opening on a downstream side of the housing with a plurality of moisture elimination separator plates positioned within the housing s |
| 6129113 |
Air flow measurement station with orthogonally mounted damper |
October 10, 2000 |
| An air flow measurement station with orthogonally mounted damper includes a station housing which encloses a damper with a plurality of movable damper blades. The damper blades are oriented in a substantially horizontal direction. The housing also encloses a plurality of air flow sensing |
| 6094757 |
Threshold assembly for barrier free shower units |
August 1, 2000 |
| A threshold assembly adapted to be mounted at the threshold of a conventional barrier free shower in order to reduce the amount of water from the shower contacting the floor of the bathroom. The threshold assembly includes cooperating catch and cap members extending longitudinally ac |
| 6007422 |
Universal damper mounting system and method |
December 28, 1999 |
| A universal damper mounting system and method for mounting a damper within an opening in a wall includes the use of a plurality of metal straps, each of which is initially formed into an roughly S shape with one leg being longer than the thickness of a wall into which the damper is being |
| 5879232 |
Exhaust fan |
March 9, 1999 |
| An exhaust fan for bathrooms and the like having two principal structural elements--a housing assembly and a motor plate assembly--wherein the housing assembly includes a generally cylindrical housing formed of injection molded plastic. The housing assembly includes a circumferential |
| 5810662 |
Compact smoke and fire damper with over center latch |
September 22, 1998 |
| An adjustable damper for controlling air flow between portions of a building includes a plurality of vanes positioned in a frame opening, which vanes are selectively, simultaneously rotatable between open and closed positions. A reversible motor and an actuating linkage on one side o |
| 5782689 |
Fabric faced air distribution device |
July 21, 1998 |
| An induction diffuser (100), radial flow diffuser (130), linear diffuser (150) and supply or return grille (170) use a fabric face (102, 132, 152, 172) to form the exposed portion thereof. The fabric face is preferably made of fiberglass or Kevlar coated with teflon. The use of the fabri |
| 5730653 |
Compact damper with over center latch |
March 24, 1998 |
| An adjustable damper for controlling air flow between portions of a building includes a plurality of vanes positioned in a frame opening, which vanes are selectively, simultaneously rotatable between open and closed positions. A reversible motor and an actuating linkage on one side o |
| 5730652 |
Damper with stationary pitot-static sensing vanes |
March 24, 1998 |
| An adjustable damper for controlling air flow from one area to another includes a rectangular frame forming an opening with a number of movable vanes positioned to selectively close off or open up the opening. Positioned between each pair of vanes in the frame is a stationary pitot-s |
| 5660371 |
Isolation damper with replaceable seal unit |
August 26, 1997 |
| An isolation damper for positioning in a duct passageway has a housing which forms a sealing chamber. The housing has a removable access panel for providing access to the sealing chamber. The damper has a blade which is capable of being actuated between an open position, wherein it allow |
| 5607355 |
Mounting bracket for damper |
March 4, 1997 |
| A mounting bracket for securing a damper in an opening formed in a wall includes four generally L-shaped segments surrounding the damper sleeve. Each segment has a generally planar wall-engaging plate and a generally planar sleeve-engaging plate. The wall-engaging plate and the sleev |
| 5584312 |
Fire damper for ceiling diffuser |
December 17, 1996 |
| A protective damper for controlling the flow of fluid through a ceiling diffuser has a frame defining an opening through which the fluid flows. A barrier has a closed position which prevents the flow of fluid through the opening and an open position which allows fluid flow through the op |
| 5456338 |
Brake drum providing access to brake adjuster |
October 10, 1995 |
| An improved drum brake assembly in which brake shoes are mounted on a backing plate and coact with a rotating brake drum mounted on an axle and in which a mechanical brake adjuster has a movable component for adjusting the running clearance of the brake shoes, in which the brake drum has |
| 5379792 |
Damper with blade for sensing pressure differential |
January 10, 1995 |
| A fluid flow control damper having one or more blades for sensing pressures to determine velocity pressure in the flow stream. The airfoil damper blade has fluid intake openings in a portion of the blade which extends into the fluid stream upstream of the damper and it has inlet openings |
| 5278392 |
Self-cleaning nozzle for a gas welding torch |
January 11, 1994 |
| A welding torch for gas metal arc welding has a torch body which conducts electricity, receives a cable for directing a welding wire, and defines a passage for directing a shielding gas. A conductor tube has an inner end portion secured to the torch body and a free outer end portion, and |
| 5217407 |
Fire damper with auxiliary springs |
June 8, 1993 |
| A fire damper comprising a plurality of interconnected blades is provided with a pair of primary negator type springs which are attached to the leading blade and a pair of auxiliary negator type springs which are attached to an intermediate blade. The blades are normally maintained in a |
| 5205784 |
Security slot diffuser |
April 27, 1993 |
| A diffuser (10) is disclosed which is suitable for use in high security areas such as a jail. The diffuser is constructed of 10 gauge plate and defines an inlet passage (16) and a return passage (18). The return passage (18) can be utilized as a second inlet passage if desired. The air |
| 5143117 |
Break away check valve |
September 1, 1992 |
| A check valve assembly is disclosed for use with a pool or spa plumbing system and includes first and second hub sections connected together by a nut member. An insert member carrying an elastomeric diaphragm is sandwiched between the first and second hub members to permit fluid flow |
