Class 55/517 - Between telescoped or nonplanar retainers

Subclass of Class 55 - Gas separation
Definition: Apparatus in which the confining or retaining means is comprised
No. of patents: 34
Last issue date: 02/19/2008

Number	Title	Issue Date
7332012	Multi-stage filtering apparatus A filtering apparatus having a filter retrieval apparatus, an integrated jib, and a clamping assembly for providing a seal between a filter and a cabinet. ...	02/19/2008
7041159	Separation apparatus A separation cartridge is disclosed which comprises a first separation medium, a second separation medium, and a frame. The second separation medium is positioned adjacent to the first separation medium. The frame is configured to hold the first and second separatio...	05/09/2006
7037354	Expandable air filtration apparatus An apparatus for air filtration has a pleated filter media with an expandable mesh bonded to the pleated filter media, an outer frame, an inner frame, support members disposed within the outer and inner frame wherein the support members create openings in the inner ...	05/02/2006
6783572	Panel-bed method and apparatus for gas and granular material contacting There is provided an improved panel-bed method and apparatus for achieving an intimate contact of a gas and a loose granular solid material (e.g., for filtering dust from the gas). A bed of the material is housed in a tall, narrow panel, across which gas moves in a ...	08/31/2004
6716267	Multi-position, spring loaded filter rack A filter rack is spring loaded to an expanded position to help hold the filter rack at various positions and orientations within a furnace enclosure. The rack may also include a spring-loaded channel whose position adjusts to receive filters of various widths. One s...	04/06/2004
6475270	Nested diffusional filter A diffusion channel assembly for use with a device enclosure with two or more nested cups forming at least one diffusion channel. The nested cups are formed of a thermoplastic film material. Each of the cups has a perimeter seal portion substantially arou...	11/05/2002
6276408	Installation for the treatment of at least one fluid, uses in the treatment of an air flow and process for loading a mass of particulate material of such an installation An installation for the treatment of fluid having a receptacle (1) defining a non-vertical portion of a path for fluid through at least two adjacent masses (A; B; C) of particulate materials, typically different from each other, each mass being in direct ...	08/21/2001
6190440	Odor absorbing container with an absorbent material between inner and outer concentric walls An air and water purifying device includes a housing having an annular space containing a suitable adsorbent or desiccant material. The housing includes an inner wall forming an axial passage and an outer wall and end caps closing the annular space. The i...	02/20/2001
5958096	Air filter for vehicle An air filter for a vehicle engine includes an outer frame having ribs and an inner frame nested within the outer frame, the inner frame having air redirecting baffles. The outer frame includes a central downwardly-depending finned support that extends be...	09/28/1999
5931980	Installation for the treatment of at least one fluid, by passage through two adjacent masses of material An installation for the treatment of fluid having a receptacle (1) defining a non-vertical portion of a path for fluid through at least two adjacent masses (A; B; C) of particulate materials, typically different from each other, each mass being in direct ...	08/03/1999
5897691	Telescoping canister for containing filter material A compact canister assembly for containing a filter media. The assembly includes an outer metal container, an inner structure of filter media and an inner metal container for insertion into an open end of the outer metal container and over the inner struc...	04/27/1999
5882385	Plant for treating at least one fluid and use for the separation of at least one constituent of a gas mixture An apparatus for improving the flow of fluid to be treated in boundary regions of a mass (2) of particulate material. The apparatus has at least one deflecting surface (4), making an angle with the main direction of the flow of fluid passing through the m...	03/16/1999
5837022	High efficiency air filter system This invention relates to improving the efficiency of air filter systems that incorporate adjustable air filter frames having telescoping frame sections. In such systems, an air bypass space exists between the frame and the filter frame support member in ...	11/17/1998
5837021	Installation for the treatment of at least one fluid, by passage through two adjacent masses of material An installation for the treatment of fluid having a receptacle (1) defining a non-vertical portion of a path for fluid through at least two adjacent masses (A; B; C) of particulate materials, typically different from each other, each mass being in direct ...	11/17/1998
5819820	Installation for the treatment of at least one fluid, by passage through two adjacent masses of material An installation for the treatment of fluid having a receptacle (1) defining a non-vertical portion of a path for fluid through at least two adjacent masses (A; B; C) of particulate materials, typically different from each other, each mass being in direct ...	10/13/1998
5733350	Container for solid filtration media and filtration system utilizing same A disposable paperboard container for holding a bed of solid filtration media is disclosed. The container is strong enough to prevent excessive pillowing, has sufficient open area to minimize the pressure drop across the bed, avoids bypass gaps caused by ...	03/31/1998
5730786	Multiple in-duct filter system A fiber bed mist eliminator system is disclosed that includes a collector vessel having at least one inlet and at least two outlets. The system further includes at least two filter housings removably secured to the collector vessel, in which each filter h...	03/24/1998
5673493	Telecoping desiccant cartridge for an air dryer disposed in an air system An air drying cartridge for use in an air drying system is disclosed. The air drying cartridge comprises a telescoping casing resiliently self adjustable in height which has an inner cylindrical apertured wall and an outer cylindrical apertured wall. The ...	10/07/1997
5464461	Filter for mounting on an avionic line replaceable unit A filter assembly for a coolant air stream flowing through an LRU box has a base frame with a large opening superimposed on the perforated top surface of the box. A filter element is superimposed over the opening and a cover having a large opening is hing...	11/07/1995
5290457	Filter element with regenerable bulk material filling and method for making same A regenerable deep bed filter element and method for making it, the element being provided as a closed system, in the case of which a deep bed filter (21), disposed inside at least one hollow-cylindrical chamber (17), is formed by a bulk material filling ...	03/01/1994
5169528	Filter element A regenerable deep bed filter element provided as a closed system, in the case of which a deep bed filter (21), disposed inside at least one hollow-cylindrical chamber (17), if formed by a bulk material filling of regenerable, filtration-active substances...	12/08/1992
4867770	Filter cartridge A filter cartridge incorporates a layer of granular material (4d) for adsorbing gases and/or vapors retained in position by porous retaining elements (4e, 4f, 4g). The cartridge includes a housing (2) and a closure element (3) for closing the housing. The...	09/19/1989
4795616	Catalytic converter monolithic substrate retention A monolithic catalytic converter has a two-piece slip pin that extends through a monolithic substrate and is connected at its opposite ends to the housing so as to retain the substrate therein while freely allowing differential thermal expansion between t...	01/03/1989
4365981	Gas filter A gas filter is formed from two uniformly spaced nesting screens extending along a serpentine path, with the space between them filled with granular filtering material. Each screen has laterally spaced areas curved in one direction lengthwise of the serpe...	12/28/1982
4318720	Exhaust filter muffler A combined muffler and engine exhaust filter comprises a fixed outer shell and an inner shell. The inner shell is formed from two concentric perforated tubes held in fixed relationship to each other. Granulated or powdered filtering material fills the spa...	03/09/1982
4308041	Air filter cartridge A cartridge including a sheet of filtering media in annular form through which air is passed as it moves in a generally toroidal path within an enclosed housing due to rotation of a computer tape disc, or the like, mounted adjacent the cartridge within th...	12/29/1981
4279630	Air cleaning means for internal combustion engine Air cleaning means suitable for use with an internal combustion engine including a fuel vapor adsorbing filter element and a sucked air cleaning filter element arranged independently of and separately from each other. The fuel vapor adsorbing filter eleme...	07/21/1981
4229418	Apparatus for the catalytic treatment of hydrocarbons Apparatus for catalytic processes such as desulphurization of hydrocarbons comprises an upright reactor vessel containing at least one tray, and catalytic support means for one or more catalyst beds said support means are attached to the inner wall of the...	10/21/1980
4203736	Method and apparatus for purifying a gas of suspended particles A shell and two perforated cylindrical walls are radially spaced about a common vertical axis so as to define three coaxial spaces. A gas to be purified of suspended particles is admitted to the annular first space between the shell and a filter bed of gr...	05/20/1980
4167482	Filtering method and apparatus A filtering apparatus has a housing and a brush-like filter element in the housing. The filter element includes a support which is permeable to the liquid or gas to be filtered. A filtering medium is secured to the permeable support and is in the form of ...	09/11/1979
4140497	Screenless granular bed filter A granular bed filter, capable of being backwashed, is disclosed without screens. The filter beds of granular material are generally U-shaped in section....	02/20/1979
4026687	Dust separator arrangement In a dust separator arrangement including a battery of filter chambers, the cavity of each filter chamber is divided into an upper compartment and a lower compartment by a layer of filter medium. A tubular member has an upper orifice in the upper compartm...	05/31/1977
3969095	Air filter apparatus An air filter apparatus comprising an inner sleeve having a number of small apertures, an externally tapered outer sleeve having a number of small apertures, said inner sleeve being inserted in said outer sleeve and fixed in position to form a double-wall...	07/13/1976
3942964	Clean room perforated floor panel A perforated floor panel for use in the construction of a floor for a "clean room" having a return air system, and the like, which provides a controlled constant balanced pressure drop across the floor and a roughing filtration of air passing through it, ...	03/09/1976

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Class 55/517 - Between telescoped or nonplanar retainers