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| Number | Title | Issue Date |
| 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 |
| 7238106 | Air delivery system The present invention relates to a system for delivering temperature and flow rate controlled warmed air to outlets for use in various apparatus. The system is typically in residential structures, such as homes, but could easily be adapted for apartment buildings as... | 07/03/2007 |
| 7210995 | Roof air make-up for exhaust of fire smoke A system for introducing make-up air into a building from above the roof for smoke control includes air shafts extending from the roof into a space in the building below a layer of smoke. The air shafts can be rigid or can be made of a flexible material which folds ... | 05/01/2007 |
| 7022008 | Air duct seal for HVAC case An HVAC duct sealing system has an air duct wall, a sealing surface, such as an HVAC case, against which the air duct wall is biased, and a seal member interposed between the duct wall and the sealing surface. The seal member is interposed between the air duct wall ... | 04/04/2006 |
| 7022011 | Air duct expander An apparatus for directing air away from a register grill includes a shroud covering that is applied over the grill and a flexible conduit that is attached over an opening provided in the shroud. The flexible conduit is used to discharge air away from the grill wher... | 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 |
| 6953396 | Fabric flow restriction and method for conveying a volume of air A fabric flow restriction and method for conveying a volume of air through a fabric duct prevents the violet popping that may occur with a fabric duct upon start-up. The fabric ducts are air permeable and/or include discharge openings that evenly disperse supply air... | 10/11/2005 |
| 6902473 | Vehicle ventilation conduit system A vehicle ventilation conduit system for distributing heating or cooling air from an air vent to a rear vehicle compartment in a vehicle such as a police cruiser. The system includes an elongated main air flow conduit having an inlet end and a discharge end. A front... | 06/07/2005 |
| 6899615 | Conical air filter An air duct system includes a conical fabric filter disposed within a cylindrical air duct. In some embodiments, both the filter and the air duct are inflatable. A fabric collar and a pair of zippers not only allow the filter to be readily removed for cleaning, but ... | 05/31/2005 |
| 6884159 | Hose assembly for conduiting and directing air from an air outlet vent of a vehicle to various locations within the vehicle A hose assembly for directing conditioned air from an air outlet vent of a vehicle's air conditioning system to various locations within the vehicle. The hose assembly comprises a boot which is selectively attachable to the vent, and a length of hose selectively att... | 04/26/2005 |
| 6843717 | Automobile vent extender An automobile vent extender that decreases discomfort by allowing hot and cold air to be directed from an automobile vent directly onto a body portion of an automobile passenger. Preferably, the automobile vent extender removably attaches to a vent diffuser embedded... | 01/18/2005 |
| 6745586 | Supply air duct arrangement for a bus air conditioner A module is provided for attachment to the roof of a bus and includes all of necessary components for conditioning the return air from the passenger compartment and delivering conditioned air thereto. Each module includes an evaporator section, a condenser section a... | 06/08/2004 |
| 6746323 | Airflow system for maintaining constant temperature inside a lead trailer and attached pup trailer An airflow system adapted for receiving airflow from a refrigeration unit mounted on a front of a lead trailer. The airflow system is also adapted for transferring and receiving airflow from a pup trailer pulled behind the lead trailer. The airflow system uses heate... | 06/08/2004 |
| 6669552 | Telescopic ventline An apparatus and method for ventilating tunnels and other confined spaces. The apparatus includes a telescopic ventline assembly. The telescopic ventline assembly includes a plurality of tubes wherein each inner tube or first intermediate tube is slidably... | 12/30/2003 |
| 6632134 | Building fire extinguisher system A building fire extinguisher system for promptly removing smoke and flammable gases from a room upon detection of a fire. The building fire extinguisher system includes a vacuum unit, a housing having a door with a powered door latch, and an intake nozzle... | 10/14/2003 |
| 6626754 | Conical air filter An air duct system includes a conical fabric filter disposed within a cylindrical air duct. In some embodiments, both the filter and the air duct are inflatable. A fabric collar and a pair of zippers not only allow the filter to be readily removed for cle... | 09/30/2003 |
| 6616524 | Raised floor air handling unit A raised floor air handling system for use in a building that is used in combination with and set into an elevated floor assembly that is mounted on a principal floor of a building so as to provide an air plenum between the two floors. An air handling ass... | 09/09/2003 |
| 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 |
| 6558250 | Fabric flow restriction and method for restricting a fabric duct A fabric flow restriction and method for adjusting the flow resistance through a fabric duct enables balancing the airflow through a network of fabric ducts. The fabric ducts are air permeable and/or include discharge openings that evenly disperse supply ... | 05/06/2003 |
| 6402613 | Portable environmental control system A portable environmental control system for evacuating particulate laden, toxic, and explosive gasses from an interior space includes a flexible partition for erection at the interior space, and a first section of flexible duct connected to the partition ... | 06/11/2002 |
| 6230418 | Low profile dryer exhaust vent system System for installation of a complete, safe, compact, and efficient dryer exhaust. Provides access to internal areas of conduit for dryer lint build-up removal. Allows dryer placement in tight confines: laundry closets, pantry areas, first floor apartment... | 05/15/2001 |
| 6131645 | Individualized cooling system used in a motor vehicle An individualized system used in a motor vehicle that has a system supplying conditioned air to selectively heat and cool an interior of the motor vehicle. The system comprises tubular apparatus to route a portion of the conditioned air to a chosen locati... | 10/17/2000 |
| 5829210 | Method to prepare for the installation of units using channels in dwellings, and multiple channel means to perform said method A method of preparing an installation of channel using units in several rooms on the one and same floor so as to allow a subsequent completion of units with multiple channel elements. Onto a flooring support between a distributing central unit and the roo... | 11/03/1998 |
| 5794683 | Beverage cooler for automobile A beverage cooler for heating and cooling beverages using a vehicle air conditioning system including a flexible hose with a securing attachment at one end to secure the hose to an outlet of the air conditioning system and a holding attachment at the othe... | 08/18/1998 |
| 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 |
| 5720656 | Aircraft air conditioning hose A hose for an aircraft parked at a remote location from a source of pre-conditioned air through which the pre-conditioned air, under pressure, is delivered through the hose, wherein the hose construction uses to advantage a length portion having a bellows... | 02/24/1998 |
| 5655963 | Air-releasing endcap for fabric air dispersion system A fabric air dispersion device system with a fabric tube, and a closure attached to an open end of the tube, the closure being movable between a closed, blocking position, and an air-releasing position wherein forced air in the tube can flow past the clos... | 08/12/1997 |
| 5575714 | Method and apparatus to pour fluid around fresh produce A method and apparatus for providing a stream of fluid around fresh produce, which produce is stored in containers provided with openings in the sides. A consecutive row of a multiplicity of such containers is arranged along a wall some distance from the ... | 11/19/1996 |
| 5404865 | Portable outside heater A portable outdoor heater comprises a plurality of hollow, rigid drum sections releasably connected in an end-to-end relationship so as to form an elongated conduit having a horizontally disposed longitudinal axis. Adjacent drum sections are releasably se... | 04/11/1995 |
| 5403232 | Utility distribution system for furniture A ventilation system is provided for communicating ventilation air through a modular furniture arrangement, such as open office partition panel systems or the like. The ventilation system includes an air source, and a collapsible duct connected to the air... | 04/04/1995 |
| 5399121 | Vehicle air distribution system with improved space utilization A vehicle heating and cooling system has an air duct arrangement that makes efficient use of the available duct space. The initial duct in the system is forced to run through a body area of limited size, and so has a limited cross sectional area and conse... | 03/21/1995 |
| 5362273 | Vehicle exhaust distribution system for buildings An exhaust fumes distribution system for use within a structure adjacent to a space in which a vehicle having an engine coupled to a vertically oriented, open ended, exhaust stack is to be located to discharge exhaust fumes out of the structure. The syste... | 11/08/1994 |
| 5344364 | Circulation air distribution system A circulation air distributing system for supplying fresh conditioned, hot or cold air through the use of cells metal cellular flooring. Distribution box inserts are uniformly distributed along the cellular flooring units prior to concrete placement. Sele... | 09/06/1994 |
| 5219403 | Plastic self-insulating ductwork system The present invention relates to a system of adjustable preformed ductwork for the conveyance of a fluid. The system uses a distribution box which includes an upper portion having a plurality of walls and a bottom plate. The distribution box may act eithe... | 06/15/1993 |
| 5165732 | Gas appliance connection A combination of metallurgical and vent engineering design solutions that result in a superior product, lower installed cost, and corrosion-free performance for venting modern fan-assisted gas appliances by using a flexible, compressible, corrugated gas v... | 11/24/1992 |
| 5137057 | Flexible duct and method of suspending a duct A flexible duct adapted to be suspended from a support and method of making same. The duct comprises a conduit of heat-sealable plastic film having a longitudinally extending fin on the conduit for suspending the conduit. The fin comprises first and secon... | 08/11/1992 |
| 5121948 | Dryer duct and vent assembly including a flexible duct portions Disclosed is a metal dryer exhaust duct assembly using a pair of flexible corrugated metal ducts capable of linear extension and capable of reorientation of the duct ends, a pair of elbow connectors, one for attachment to a dryer exhaust outlet and the ot... | 06/16/1992 |
| 5111739 | Air flow control system A duct to carry air has openings along it and a flexible sheet extending longitudinally within it. The end of the sheet adjacent the point of air intake can be brought against one side of the duct or the other, either to allow air to be blown through the ... | 05/12/1992 |
| 5104194 | Continuous miner with improved duct system and method of increasing duct cross section A self-propelled continuous mining machine which includes a mobile frame assembly having a material dislodging device, and a conveying system. A dust collecting system is positioned on the mobile frame assembly for inducing a flow of air through a duct sy... | 04/14/1992 |
| 5095942 | Plastic self-insulating ductwork system The present invention relates to a system of adjustable preformed ductwork for the conveyance of a fluid. The system uses a distribution box which includes an upper portion having a plurality of walls and a bottom plate. The distribution box may act eithe... | 03/17/1992 |
