Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7789927 | Portable breathable dust partition system A portable partition system includes an air permeable nonwoven sheet material as the primary isolation material. An elongated support member with an attachment device are used to erect the sheet material. The attachment device includes a head with opposed separable ... | 09/07/2010 |
| 7416577 | Air intake filter screen assembly including a stand-off frame for preventing hail damage to surface coils of an associated air intake unit A filter screen assembly for use with an air intake structure, the structure including a face within which is formed an air intake opening. The filter screen assembly includes a screen having a flexible mesh material and an outer perimeter edge. A three-dimensional ... | 08/26/2008 |
| 7387654 | Screen assembly kit for an air processing unit A screen assembly, associated kit and method of forming the same. The screen assembly is adapted to filter intake air passing through an exterior surface of an air processing unit, and includes a substantially rectilinear screen mesh having opposing top and bottom e... | 06/17/2008 |
| 7354470 | Multiple retainer bridge A multiple retainer bridge device is provided for securing a utility member (e.g., a magnet or bracket) to posts on a housing member (e.g., a filter housing). When assembled, the utility member is staked onto the posts. A single retainer member prevents the utility ... | 04/08/2008 |
| 7332011 | Equipment air filter assembly A filter assembly for a structure having an air intake, the filter assembly including a filter media that is sized and shaped to cover the air intake. The ends of the filter media are connected by an elastic fastener, such that the filter media and the fastener enci... | 02/19/2008 |
| 7332007 | Dusting device with multiple stream nozzles A dedusting device 1 with a demister 15 advantageously arranged standing obliquely has a very compact construction because sufficient moistening or wetting of dust-containing crude air 24 is possible through the use of intensively acting multipl... | 02/19/2008 |
| 7323028 | Air intake filter screen assembly A filter screen assembly for use with an air intake structure, the structure including a face within which is formed an air intake opening. The filter screen assembly includes a screen having a flexible mesh material and an outer perimeter edge. The perimeter edge i... | 01/29/2008 |
| 7303605 | Snap together filter A fluid filter is provided with a snap-together housing for the filter media. The housing is designed with two main parts that are easily snapped together to encapsulate the filter media. The filter housing is substantially cylindrical, and contains an inlet on one ... | 12/04/2007 |
| 7255838 | Apparatus with nano-sized platinum black and oxygen-rich ceramic powder for filtering the incoming air into an internal combustion engine An air filter for an internal combustion engine having a rigid type ceramic filter element made by foaming oxygen-rich ceramic powder for creating a plurality of pass-through holes. In this way, the incoming air obtains a thorough contact with the oxygen-rich powder... | 08/14/2007 |
| 7223340 | Hollow fibre restraining system A restraining system for hollow fibers is provided. The restraining system includes a plurality of longitudinally extending elements spaced from one another and supported by a number of discrete spacer elements, each spacer element extending generally transverse of ... | 05/29/2007 |
| 7097692 | Air filter arrangement and method of making same An air filter arrangement for use in a heating or cooling system including a frame and a filtration member secured within the frame. The frame is defined by a pair of opposed frame components or halves, which are removably or permanently fastened to one another with... | 08/29/2006 |
| 6966443 | Paraffin filter element A paraffin filter for a paraffin spa includes a first end cap and a second end cap with a filter medium sandwiched therebetween. Each end cap is disk-like body having a respective tubular connection for the input or output of melted paraffin, thus providing a low pr... | 11/22/2005 |
| 6962258 | Hollow fiber restraining system A restraining system for hollow fibers is provided. The restraining system includes a plurality of longitudinally extending elements spaced from one another and supported by a number of discrete spacer elements, each spacer element extending generally transverse of ... | 11/08/2005 |
| 6955700 | Snap together filter A fluid filter is provided with a snap-together housing for the filter media. The housing is designed with two main parts that are easily snapped together to encapsulate the filter media. The filter housing is substantially cylindrical, and contains an inlet on one ... | 10/18/2005 |
| 6852150 | Molded core filter drier This filter-drier for removing moisture from a refrigerant includes a casing having an inlet for receiving refrigerant, an outlet for discharging refrigerant and a molded core, formed from dessicant and a binder, and disposed in the casing between the inlet and the ... | 02/08/2005 |
| 6848990 | Register assembly for covering an air duct opening A register assembly for covering an air duct opening is comprised of a faceplate, a base, a damper mechanism and a filter frame that are easily assembled together. Most if not all of the component parts may be constructed of plastic reducing the manufacturing cost o... | 02/01/2005 |
| 6835235 | Molded core filter drier with filter media molded to core for use in heat pump systems This filter-drier for removing moisture from a refrigerant includes a casing having an inlet for receiving refrigerant, an outlet for discharging and a molded core disposed in the casing between inlet and outlet. In one embodiment, the core includes an outer surface... | 12/28/2004 |
| 6811685 | Fouling mitigation device with movable screen A self-cleaning strainer which may be installed upstream of a heat exchanger to prevent debris greater than a critical size from reaching the heat exchanger. The strainer is preferably mounted just upstream of a heat exchanger in order to minimize the possibility of... | 11/02/2004 |
| 6652748 | Treated filter media and frame A filter medium and frame therefore wherein the filter medium is treated by a novel adhesive comprised of a major portion by weight of an oil group consisting of vegetable and animal oils and a minor portion of a preselected thickening material with the r... | 11/25/2003 |
| 6616842 | Sheet of filtration, separation or reaction elements, and a module comprising such a sheet There are provided a sheet of filtration, separation or reaction elements, a method for preparing such a sheet, a filtration, separation or reaction module comprising at least one such sheet, and a method for preparing this module.... | 09/09/2003 |
| 6579351 | Integrated filter and adsorbent unit for an integrated receiver-dryer and related method of manufacturing An integrated filter body and adsorbent unit capable of being integrally fastened together for easy and economical assembly into a refrigerant pressure vessel assembly. The integrated filter and adsorbent unit includes a filter puck, an adsorbent unit mou... | 06/17/2003 |
| 6494940 | Air purifier An air purifier including a housing supporting an air inlet, an air outlet and an air flow passage interconnecting the air inlet and the air outlet. The airflow passage is defined by a filtration chamber positioned upstream from a blower chamber and an ul... | 12/17/2002 |
| 6478858 | Desorbable sorption filter suitable for a motor vehicle heating or air-conditioning system A desorbable sorption filter, in particular for a heating or air-conditioning system of a motor vehicle, has a metallic support (12) which can be heated by flow of current and an adsorber (14) mounted at or on the support (12). To provide an improved, dir... | 11/12/2002 |
| 6309297 | Register assembly for covering an air duct opening A register assembly for covering an air duct opening is comprised of a faceplate, a base, a damper mechanism and a filter frame that are easily assembled together. Most if not all of the component parts may be constructed of plastic reducing the manufactu... | 10/30/2001 |
| 6293983 | Filter assembly having a disposable pre-filter A filter assembly for use in an air filtration unit, particularly for filtering cooking vapors. The assembly includes a filter disposed across an air flow and a grease pre-filter located upstream of the filter. The grease pre-filter is formed principally ... | 09/25/2001 |
| 6293860 | Motor-vehicle passenger-compartment air-cleaner An improved air filtration method and device by which to more effectively clean the ambient air (19) being fed into a motor vehicle's passenger compartment, via the existing OEM ventilation and heating/air conditioning system (10, 15, 16). The notion of a... | 09/25/2001 |
| 6197077 | Filter screen assembly for mounting over an air intake opening A filter screen assembly for mounting over an air intake opening of a structure. The structure has a height, a width and a depth and defines a selected face within which the air intake opening is formed. The selected face further includes a top, a bottom,... | 03/06/2001 |
| 6152980 | Size adjustable filter element The present invention 10 discloses an air filter element 18 that is partially fabricated on site wherein one or more wire frames 28 are fastened to one another using a high tensile strength adhesive tape 34 to form a structure substantially conforming to ... | 11/28/2000 |
| 6080059 | Motor-vehicle passenger-compartment air-cleaner An air filtration method and device which more effectively clean the ambient air being fed into a motor vehicle's passenger compartment, via the existing OEM ventilation and heating/air conditioning system. The notion of more conveniently accessible air f... | 06/27/2000 |
| 6044892 | Frame assembly A frame assembly is adjustable to fit within a range of desired openings and includes juxtaposed first and second frame units detachably assembled together. An intervening media material is releasably sandwiched between the frame units. The media material... | 04/04/2000 |
| 6036737 | Safety cabinet having easily attachable and detachable transition boot A safety cabinet having a work area defined by an enclosure and including an air circulation and cleaning system. The air circulation and cleaning system includes a plurality of air plenums and passageways through which air is circulated by a blower assem... | 03/14/2000 |
| 6007596 | Adjustable air filter kit An air filter kit for residential and light commercial air filtration applications including a user assembled, dimensionally adjustable, air filter frame assembly capable of telescopic adjustment of both length and width. Telescopic adjustment is facilita... | 12/28/1999 |
| 5984776 | Register assembly for covering an air duct opening A register assembly for covering an air duct opening is comprised of a faceplate, a base, a damper mechanism and a filter frame that are easily assembled together. Most if not all of the component parts may be constructed of plastic reducing the manufactu... | 11/16/1999 |
| 5914413 | Gas filter unit The invention concerns a gas filter unit or cartridge type, including a filter material put together to form one or several filter bags, and a support frame of essentially U-shaped cross-sectional configuration, including a web portion and two lateral leg... | 06/22/1999 |
| 5904744 | Fan filter with fasterning means An air filter designed to be placed at a definite distance L beyond the periphery of the primary airflow which is created by an operating fan, and attached to a stationary element of the fan or to a stationary element of an enclosed space with fasteners w... | 05/18/1999 |
| 5868808 | Velocity stack filter A carburetor air intake velocity stack engagable with a carburetor inlet, has a cylindrical throat section having first and second ends. The first end is adapted to be coupled to the carburetor, while the second end is open to the air. A shaped, mesh filt... | 02/09/1999 |
| 5863310 | Grill/filter mounting assembly A grill filter assembly for mounting in the exit or entrance wall opening of a forced air duct wherein the grill plate may be installed in a hinged relation to the duct enabling easy access to the duct opening. In a preferred embodiment, the grill face pl... | 01/26/1999 |
| 5797974 | Respiratory filter and sampling device A combination respiratory filter and sampling device has been developed which collects airborne contaminants for respiratory exposure measurements. The devices, which fit existing commercial half-mask respirators, are generally smaller and lighter in weig... | 08/25/1998 |
| 5797975 | Filter frame A filter frame that includes a hinge structure for coupling a series of like filter frames together such that the series of filter frames may be folded together. Moreover, the filter frame includes a series of separable sub-sections that correspond to sta... | 08/25/1998 |
| 5776213 | Respiratory filter and sampling device A combination respiratory filter and sampling device has been developed which collects airborne contaminants for respiratory exposure measurements. The devices, which fit existing commercial half-mask respirators, are generally smaller and lighter in weig... | 07/07/1998 |
