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| Number | Title | Issue Date |
| 7645188 | Air diffuser apparatus An air diffuser for distributing air into a room from a supply duct of an air distribution system having: a frame member, wherein the frame member includes an inner surface, and an outer surface; an attachment member, wherein the attachment member is associated with... | 01/12/2010 |
| 7442121 | Textile ducts A textile duct for an air circulation system, the duct having an inner gas-permeable layer and an outer gas-impervious layer, and one or more spaces therebetween. An air circulation system having one or more ducts and one or more air treatment units and/or air handl... | 10/28/2008 |
| 7377952 | System and method for removing contaminates from the air in a mail-sorting room An air decontamination system including a sealed room to hold at least one person and the sealed room having an air inlet. The system further including a vacuum unit to create a negative pressure within the sealed room, by suctioning air through the air inlet into t... | 05/27/2008 |
| 7361082 | System, device and method for ventilating a room A system and method for ventilating a room in which the system has at least one air supply unit and one air exhaust unit. The air inlet unit has a guiding slot diffuser for guiding an airstream in a certain direction, such that a patient, lying down in a bed on his ... | 04/22/2008 |
| 7191615 | Air conditioning system Air conditioning system including an outdoor unit, a compact indoor unit, air supply duct, air discharge duct, and preheat exchanger. An indoor heat exchanger in the indoor unit has a space therein in communication with a room, a fan in the indoor unit provided in t... | 03/20/2007 |
| 7168126 | Central vacuum cleaner having an energy recovery ventilator system A central vacuum assembly including a vacuum cleaning apparatus, a ventilation apparatus, a heat exchanger for transferring heat energy between air in the vacuum cleaning apparatus and air in the ventilation apparatus. Optionally, a fan for circulating air within th... | 01/30/2007 |
| 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 |
| 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 |
| 6958011 | Pliable air duct with dust and condensation repellency A fabric air duct with main discharge openings includes additional, much smaller openings that help ventilate the surface of the duct. Ventilating the surface of the duct with a slight yet even amount of airflow helps inhibit the accumulation of condensate and dust ... | 10/25/2005 |
| 6868693 | Air conditioning system The present invention provides an air conditioning system including an outdoor unit, an indoor unit, and air supply and air discharge duct. The outdoor unit includes a compressor and an outdoor heat exchanger, and the indoor unit in a ceiling includes an indoor heat... | 03/22/2005 |
| 6811587 | Biological hazard mitigation apparatus for mail/package handling personnel safety and operating methods therefor A biological hazard mitigation apparatus permitting a material handling operation in the vicinity of a work area includes a plenum pneumatically coupled and proximate to one side of the work area, a filter sized to trap biological hazards and including an exhaust po... | 11/02/2004 |
| 6645298 | Active substance and device for the deacidification of printed matter Modern techniques for manufacturing paper using mechanical wood pulp has lead to a persistent over-acidification of printed manner, and threatens to permanently destroy the same. This over-acidification can be neutralized by using an alkaline active subst... | 11/11/2003 |
| 6602129 | Air cooling element, method for operating the same, and an air cooling arrangement In order to achieve a high cooling power while avoiding troublesome cold air flows, a chamber (2) is sealed, from the room to be cooled, by a thin cooling wall (1) of powder-coated steel with micro-holes which are arranged in a square 5 mm grid and have a... | 08/05/2003 |
| 6565430 | Pliable air duct with dust and condensation repellency A fabric air duct with main discharge openings includes additional, much smaller openings that help ventilate the surface of the duct. Ventilating the surface of the duct with a slight yet even amount of airflow helps inhibit the accumulation of condensat... | 05/20/2003 |
| 6511373 | Cornice duct system An energy efficient air distribution system placed within the conditioned space of a building comprising a duct having an interior volume for conducting air. One of the exterior surfaces may have an ornamental design providing the impression the device is... | 01/28/2003 |
| 6425821 | Pore-containing web for diffusing fluids A fluid diffuser and a method for diffusing fluid are provided. In one preferred embodiment, the diffuser comprises a frame adapted to be connected to the end of fluid supply duct. Mounted within the frame is a pore-containing web. The web redirects fluid... | 07/30/2002 |
| 6280320 | Frame to support a deflated fabric air duct A flexible air duct is provided for conveying and distributing a source of forced air to a room or other area of a building. The air duct includes a flexible outer casing made of an air permeable fabric that evenly disperses the air into the room. To prev... | 08/28/2001 |
| 6139426 | Molded polymer air diffusing screen A molded plastic air diffusing screen in an air supply system provided for effectively diffusing or deflecting air supplied through a coreless or vane-free duct such that undesirable air turbulence and draft/currents are substantially diminished; more par... | 10/31/2000 |
| 6135878 | Modular core air diffusers Modular ceiling air diffusers are provided in which the core deflector elements are pre-fabricated in a one-hit one-part pressing operation to form a selected pattern of integral louvers shaped to deflect air in a desired horizontal air pattern. This redu... | 10/24/2000 |
| 6113486 | Fabric sheath for ventilation and laminar flow hood A fabric sheath (1) for the close protection of the conveyance of sensitive products by sterilized air stream diffusion, in particular in a substantially vertical direction is formed by a sealed wall (2) and a porous wall (3) extending longitudinally and ... | 09/05/2000 |
| 6059655 | Fabric air diffuser, method for diffusing air, and method for attenuating noise associated with flowing air A fabric air diffuser and a method for diffusing air are provided. The diffuser comprises a frame adapted to be connected to the end of an air supply duct. Mounted within the frame is a flat, open-weave, fabric sheet. The fabric sheet redirects and scatte... | 05/09/2000 |
| 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 |
| 5807171 | Air diffuser apparatus An air diffuser apparatus has a box-like air diffuser chamber with sheet metal side walls, that are provided with a series of laterally spaced outlet orifices. Each orifice is formed by cutting out wing portions of the sheet metal on each side of a center... | 09/15/1998 |
| 5782689 | Fabric faced air distribution device 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 ... | 07/21/1998 |
| 5779534 | Multiple stage airflow diffuser apparatus for paint booth A multiple stage airflow diffuser apparatus for spreading the airflow to provide a uniform airflow in a plenum. The diffuser includes a plurality of diffuser stages positioned in a spaced, nested relationship.... | 07/14/1998 |
| 5769708 | Fabric air dispersion system with air dispersing panels An air dispersion system is provided for conveying and distributing a source of forced air to a room, building, or other enclosure. The air dispersion system includes a fabric tube having a proximal end coupled to the source of forced air, a distal end op... | 06/23/1998 |
| 5735738 | Condensation preventing vent structure A condensation preventing vent structure has therein at least one blade including an innermost vent to define a passage for a flow of air. The innermost fin is provided with open upper and lower ends to define therein an inner air flow passage. An air flo... | 04/07/1998 |
| 5725427 | Fabric air diffuser, method for diffusing air, and method for attenuating noise associated with flowing air A fabric air diffuser and a method for diffusing air comprises a frame adapted to be connected to the end of an air supply duct. Mounted within the frame is a flat, open-weave, fabric sheet. The fabric sheet redirects and scatters air passing through the ... | 03/10/1998 |
| 5671610 | Fan guard of a freezing chamber in a refrigerator A fan guard of the freezing chamber in the refrigerator directs the cool air ejected from the cooling fan into the freezing chamber in quantities for shortening the time required for maintaining the optimum ambience of the freezing chamber, economizing th... | 09/30/1997 |
| 5620366 | Diffuse ventilation system for passenger vehicles and method for making same A system is provided for the diffuse ventilation of a vehicle interior in a dashboard area which, for avoiding manufacturing problems and for the purpose of an advantageous mounting, has an insert which is composed of a top and bottom part and which is in... | 04/15/1997 |
| 5595068 | Ceiling mounted indoor unit for an air conditioning system A ceiling mounted indoor unit (10) for an air conditioning system of the type that is generally recessed within a false or drop ceiling. The air conditioner has a fan (11) and heat exchanger (12) mounted within an enclosure (20). There is a primary fan su... | 01/21/1997 |
| 5495724 | Cooling system A cooling system which can be fastened on a ceiling with a suspension provided beneath the ceiling disposed above a space to be cooled and with cooling pipes between the ceiling and the suspension wherein the space to be cooled and the space between the c... | 03/05/1996 |
| 5490813 | Air injection tube and a method for air injection An air injection tube for injecting ventilating, cooling and/or heating air for installation in a room where the tube has a plurality of small, mutually spaced air injecting openings defined in its peripheral wall along longitudinally extending wall zones... | 02/13/1996 |
| 5462484 | Clean-room ceiling module A module for the construction of a cleaning room ceiling has a housing wh can be fitted like a tile in the ceiling and which is divided internally into three chambers. A fan in an upper false floor draws air into the housing along an upper chamber which ... | 10/31/1995 |
| 5454756 | Clean room ventilation system A clean room ventilation system having a diffuser panel attached to a ceiling grid, with a filter element positioned well above the panel. The diffuser panel is perforated throughout its area with increased size and/or density of perforations in a periphe... | 10/03/1995 |
| 5318474 | Radial flow diffuser A device to produce a high capacity, low velocity, non-aspirating, semi-cylindrical air pattern, to be mounted in a ceiling. The device has a box-shaped backpan connected to a ceiling air duct and a flow directing assembly attached to the backpan and hang... | 06/07/1994 |
| 5281187 | Unitary vent and duct assembly A unitary vent and duct assembly for installation within a framed section of a suspended ceiling structure comprises a cowling having a substantially closed top end and a substantially closed bottom end. The bottom end of the cowling is covered with a for... | 01/25/1994 |
| 5259817 | Diffuser with ceiling-penetrating nozzles An air diffuser that injects triangular columns of air into a space to be air conditioned. The triangular columns of air entrain air into their wake and set up a cross flow of air in a direction normal to the path of travel of the air in the triangular co... | 11/09/1993 |
| 5232401 | Air supplying apparatus An air supplying apparatus for supplying a clean room with air having a conditioned cleanliness, temperature and/or humidity includes an air control unit for discharging the controlled air, and an air outlet duct connected to an air outlet of the air cont... | 08/03/1993 |
