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| Number | Title | Issue Date |
| 7334420 | Air conditioning unit installation The installation of an air conditioning unit upon a roof having a sloping surface includes providing a framework having a first frame and a second frame which are joined for relative reciprocal movement whereby the framework can be secured to roof and adjusted to pr... | 02/26/2008 |
| 7331854 | Common filtration unit for building makeup air and emergency exhaust A building protection system comprises a filtration unit, an air handling unit, an emergency exhaust subsystem, a first damper positioned between the filtration unit and the air handling unit, and a second damper positioned between the emergency exhaust subsystem an... | 02/19/2008 |
| 7204096 | Indoor apparatus for air conditioner An air discharge outlet comprises line air discharge outlets (35) and corner air discharge outlets (36). The line air discharge outlets (35) are so formed as to extend, respectively, along four sides of a casing bottom part having four side part... | 04/17/2007 |
| 7185504 | Air conditioner An operational air conditioning mode is allowed to set to a temperature uniformization mode and a spot air conditioning mode, and is selectively switched between these modes automatically by a control means (53) or manually. In such an embodiment, a comfortab... | 03/06/2007 |
| 7174918 | Air flow control valve for vehicle air conditioning module A novel air flow control valve for an air outlet in an HVAC housing provides for strong, even seal pressure all the way around the edge of the opening. In stead of a swinging door hinged at one edge of the opening, in which seal pressure is strong on the hinge edge ... | 02/13/2007 |
| 7156892 | Filter protection device for preventing damage to an air filter A filter protection apparatus includes a frame of a closed curve defining an inner space isolated from surroundings, the frame having a shape of a filter securing part for securing an air filter, an attaching part for attaching the frame to a filter securing part, a... | 01/02/2007 |
| 7140960 | Boot hanger mounting bracket The present invention relates to duct systems, registers and ductwork components used with floor or ceiling registers employed in warm air heating, ventilating and air conditioning systems, and specifically to improvements for mounting and installing the components ... | 11/28/2006 |
| 7125332 | Ceiling radiation damper and mounting method A ceiling damper system that comprises a damper housing having an input opening to accept air from a heating, ventilation and air conditioning HVAC system, and an output opening to supply the HVAC air to a room. The system further comprises a damper mechanism to sub... | 10/24/2006 |
| 7108600 | Air duct register The present invention provides an air duct registrer for adding forced air (heat, air conditioning), exhausting air or simply to balance air quality. The air duct register has a manifold and is designed with a removable manifold collar connectible to the flexible or... | 09/19/2006 |
| 7022010 | Air conditioner with a circular air diffuser system A ceiling has an upper surface, a lower surface and a circular aperture. A boot has a cylindrical lower section and a large circular cross sectional configuration and with a cylindrical upper section and a small circular cross sectional configuration. The diameter o... | 04/04/2006 |
| 7013606 | Roof pipe chase housing system A roof pipe chase housing system for allowing pipes to pass through a roof without leaking. The roof pipe chase housing system includes a roof curb, a housing structure attached to the roof curb, and a tower structure attached to the housing structure. The housing s... | 03/21/2006 |
| 7011578 | Plenum and diffuser for heating, ventilating and air conditioning applications A plenum and diffuser for use with an HVAC system for distributing air through an opening in a ceiling, the plenum having a large diameter bottom opening by which air is passed through an opening in the ceiling, and having an air inlet opening. A hanger bar extends ... | 03/14/2006 |
| 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 |
| 6931794 | Method and apparatus for installing fitting A framing device or support member (1) for framing a fitting, such as a power point or switch (8), within orifice (4) provided in a surface member (3). The device/member is provided with a lip (5) on the extremity thereof which ena... | 08/23/2005 |
| 6929447 | Steam line closing valve and steam turbine plant comprising such a steam line closing valve The invention relates to a steam line closing valve for closing a steam line, especially in a steam turbine plant between a first partial turbine and at least one second partial turbine that is operated at a lower pressure than the first partial turbine. According t... | 08/16/2005 |
| 6929057 | Building heating assembly A heating assembly for a house or other building includes a furnace module, an evaporator coil module and an adaptor module disposed between the furnace module and the evaporator coil module. Tension straps are employed to connect the modules and maintain the adapto... | 08/16/2005 |
| 6923111 | Mobile container for perishable goods An enclosed mobile container having a refrigeration unit for providing conditioned air to a mixing chamber located at the front of the container. Air penetratable cartons containing perishable produce are stacked in rows along the length of the container to create a... | 08/02/2005 |
| 6866579 | Boot hanger mounting bracket The present invention relates to duct systems, registers and ductwork components used with floor or ceiling registers employed in warm air heating, ventilating and air conditioning systems, and specifically to improvements for mounting and installing the components ... | 03/15/2005 |
| 6837787 | Flexible duct sleeve A sleeve assembly (2) for supporting flexible duct (4) includes a frame (6) with first and second frame sections (10a, b). The frame sections are secured together by fastener subassemblies (8). The sleeve assembly accommodat... | 01/04/2005 |
| 6554880 | Adjustable air diffuser and related methods Apparatus for a discharge vent on an air circulation system includes structures for controlling the direction and quantity of airflow. Filter elements may be provided to help reduce contaminants that might otherwise be discharged through the vent. Preferr... | 04/29/2003 |
| 6533656 | Air handling system duct closure and heat trap A counterweight biased duct vent closure and door for a conventional overhead or surface mounted forced hot/cool air supply vent opening. The closure door includes a covering sized to fit over and sealably cover the register or vent opening from communica... | 03/18/2003 |
| 6511522 | Quick connect, stabilized clean room filter support system A clean room filter support system has a filter unit comprising a perimetrical frame having four sides of a predetermined vertical extent with upper and lower edges and filtering material held within the frame for air flow between a first plane incorporat... | 01/28/2003 |
| 6478673 | Diffuser for heating and air conditioning systems A diffuser for a heating and air conditioning system includes a body portion and an adapter. The body portion includes a flange with a cylindrical portion. Flexible arms having projections are located about the cylindrical portion. Clamp guides are positi... | 11/12/2002 |
| 6458028 | Diffuser and ceiling fan combination A diffuser for a ceiling allows a ceiling fan to be mounted directly below the diffuser so that the fan may distribute the air being delivered out of the diffuser. The diffuser includes an upper box section mounted on a lower section that mounts the diffu... | 10/01/2002 |
| 6435963 | Barrier device to surround air delivery structures Devices, methods of using the devices, and kits are described that provide a protective barrier device between an air delivery structure of an air conditioning unit and the ceiling components that are adjacent to the air delivery structure. The device is ... | 08/20/2002 |
| 6405644 | Environmentally controlled storage and ripening apparatus The present invention describes an apparatus useful for maintaining perishable products in a controlled environment as a modular unit. This modular unit, or self-contained apparatus, encompasses all the equipment necessary for installation while offering ... | 06/18/2002 |
| 6354937 | Flexible duct sleeve A sleeve assembly for supporting flexible duct includes a frame with first and second frame sections. The frame sections are secured together by fastener subassemblies. The sleeve assembly accommodates flexible duct in various angular and straight configu... | 03/12/2002 |
| 6251007 | Transition inlet diffuser An air diffuser plenum for use with climate control systems to direct air to desired locations within the interior of a building. An inlet receives air from the climate control system. Within the air diffuser plenum is a cavity which receives the incoming... | 06/26/2001 |
| 6206778 | Air diffuser plenum An air diffuser plenum for use with climate control systems to direct air to desired locations within the interior of a building. An inlet receives air from the climate control system. Within the air diffuser plenum is a cavity which receives the incoming... | 03/27/2001 |
| 6193603 | Wind outlet plate of an air conditioner for cleaning air A wind outlet plate of an air conditioner for cleaning air comprises a wind outlet panel, an upper cover, a wind guiding plate, a filter, a negative ion generator, an ultraviolet lamp. The wind outlet panel has a wind outlet. The upper cover is installed ... | 02/27/2001 |
| 6168517 | Recirculating air mixer and fan with lateral air flow An air circulation and mixing device is disclosed which can cover a ceiling air ventilation duct, taking air discharged from the duct and drawing air at the room's ceiling, mixing the two, and redirecting the mixed air so that it is discharged radially an... | 01/02/2001 |
| 6077160 | Method and apparatus for ripening products in a temperature-controlled room A ripening room is disclosed for ripening perishable products, such as fruits and vegetables, and more particularly bananas, in which the air flow and temperature are closely controlled by the room construction and by a cooling control system that archive... | 06/20/2000 |
| 6070383 | Clean room ceiling A clean room filter unit mounting system including a bracket, a bracket and fastener assembly, and individually mounted filter units. The bracket and fastener assembly includes a bracket having a relatively fixed member and a relatively movable member to ... | 06/06/2000 |
| 6030287 | System for distributing air through a ceiling in a room A system for distributing air through an opening in a ceiling into a room, the ceiling being supported by spaced apart joists or other ceiling structural members, the air being supplied by a duct located above the ceiling, including a plenum having an ope... | 02/29/2000 |
| 5946875 | Bracket and fastener assembly for easily installed clean room ceiling with self-supporting filter units A clean room filter unit mounting system including a bracket, a bracket and fastener assembly, and individually mounted filter units. The bracket and fastener assembly includes a bracket having a relatively fixed member and a relatively movable member to ... | 09/07/1999 |
| 5795220 | Ceiling fan with an air diffuser system A system for distributing air in a room, the air being supplied by duct work. A plenum having an open top and an open bottom, the open top being in communication with the duct work. An air diffuser is positioned within the room in communication with the p... | 08/18/1998 |
| 5658196 | Insulated air diffuser An air duct diffuser is shown for attachment to a ceiling grid. The diffuser includes a frame which mounts to the ceiling grid and a louvre which mounts to the frame for directing diffused air within an associated air space. A pre-formed, composite housin... | 08/19/1997 |
| 5569078 | Air diffuser having fixed and variable outlet ports A diffuser introduces air into a conditioned space to obtain a desired indoor atmospheric environment. The diffuser has a diffuser body and an inlet through the diffuser body. The inlet has an inlet area to receive the air within the diffuser. The diffuse... | 10/29/1996 |
| 5564980 | Room air quality conditioning system An air circulation system includes an inflow system which includes a tube enclosure or cowl suspended from a ceiling of a room or from a roof above the room. The tube enclosure or cowl is fitted with a ceiling fan. An air supply unit external to the room ... | 10/15/1996 |
