Class 210/426 - Encased

Subclass of Class 210 - Liquid purification or separation
Definition: Apparatus wherein the valve is within the same housing as
No. of patents: 24
Last issue date: 09/19/2006

Number	Title	Issue Date
7108002	Steam cleaning system and method for semiconductor process equipment Disclosed are systems and methods for removing stubborn contaminants, aluminum fluoride and aluminum chloride in particular, from components of semiconductor-processing equipment. One embodiment forces steam through small holes in a gas distribution plate to remove ...	09/19/2006
7105090	Backflushing filter A filter has three filter elements, e.g., screens, for trapping particulate material while allowing passage of a fluid. The second sides of each of the first and second screens are connected to an intermediate passage, and the second side of the third screen, and th...	09/12/2006
6644349	In-tank water conditioner valve A water conditioner valve configured for use with a tank in a water conditioning system, including a main housing a working portion disposed within the main housing and further including at least one valve chamber, and at least a portion of the working po...	11/11/2003
6447678	Regeneration of water treatment media Regeneration of water treatment media is disclosed which includes a water treatment unit having one or more media therein, and which upon initiation of flow of the water, imparts turbulence and abrasion to the treatment medium to automatically cleanse the...	09/10/2002
6398954	Multimedia backwashable filtration system A multimedia fluid treatment unit and rotatable valve are disclosed in which a plurality of discreet containers are removably stacked upon each other and contain various different and distinct water treating media. The rotatable valve is rotatable between...	06/04/2002
6197192	Filter array with connector for successive backwash A filtration apparatus includes an array of filters arranged in parallel about a rotatable assembly 24 for successively backwashing each of the filter elements 19 within the array. The rotatable assembly includes a connector bachwash shoe 26 and a cage ha...	03/06/2001
6148613	Reversing flow catalytic converter for internal combustion engine A compact reversing flow catalytic converter for reducing noxious substances in exhaust gases produced by internal combustion engines is described. The catalytic converter includes a valve unit which reversibly directs exhaust gases through a container fi...	11/21/2000
5853584	Self-cleaning filter for filtering of liquids and gases A filter for filtering of a fluid, including a housing having an inlet port for the fluid to be filtered, an outlet port for filtered fluid and an outlet port for filtered fluid and an outlet port for rehect, In a body arranged in the housing to be rotata...	12/29/1998
5779898	Control device for filters in at least two partial fluid streams A control device for at least two partial fluid ducts comprises a common fluid supply duct and a common fluid removal duct. The fluid supply duct is connected with the fluid removal duct by at least two partial fluid ducts. A filtering device, a valve dev...	07/14/1998
5601713	Filter systems and apparatus A filter and a filter and valve assembly primarily intended for use in fluid analyzer systems for particulate or coalescing filtration of fluids includes a filter assembly having a base element with all port openings in the base and with the port openings...	02/11/1997
5342520	Filter for a rockdrill A filter having a filter element is provided for a rockdrill. The filter can be operated in three modes, namely, filtering or drilling, rinsing and back-flushing. As the filter element becomes clogged a handle on the filter can be turned to a back-flushin...	08/30/1994
5032267	Apparatus for filtering a heat-softened stream of plastic material In the filtering apparatus for an extrusion machine, a stream of heat-softened plastic material arrives via a flow conduit in a filter housing at an outlet, and thereby permeates replaceable filter means which are carried by a slide which is temporarily s...	07/16/1991
4869817	Backwash valve lever control system A valve structure for a swimming pool water filter includes: (a) a hollow body having multiple flow apertures, (b) a rotary plate on the body and having flow porting, the plate being movable toward and away from said flow apertures, (c) seal means between the body ...	09/26/1989
4806258	Straining and stop valve A fluid filtering stop valve having a body with a cylindrical chamber having a circumferential sidewall with inlet, outlet and flush ports, and a cylindrical plug member rotatably disposed in the chamber. The plug member has spaced apart first and second ...	02/21/1989
4648971	Flow through filter with backflush clearing capability A filter consisting of a housing, a rigid, porous filtering element, means for forming a primary filter path along the filtering element, and a non-rigid expanding element, wherein when a solution to be filtered flows through the primary flow path, filtra...	03/10/1987
4642188	Backwash apparatus for multi element filter unit A multi-element filter unit includes backwash apparatus and comprises a filter casing with provision for alternative, oppositely directed process liquid and backwash liquid flows therethrough. A plurality of filter tubes are close spaced within the filter...	02/10/1987
4639315	Apparatus for mechanical purification of waste water Apparatus for mechanical purification of waste water has a stationary hollow shaft which is installed in a vessel for waste water and carries a variable number of hollow drum-shaped frames with pairs of filters adjacent to the openings in their sidewalls....	01/27/1987
4601826	Filter fitted with a deblinding device The present invention related to a filter consisting of a stack 4 of elements 5 comprising one cylindrical side and each element consisting of several isolated sections 23-24 and provided with orifices 35 for communication of its sections with the circumf...	07/22/1986
4592848	Flow through filter with backflush clearing capability A flow-through filter including a two-stage valve head assembly and a filtering body which is designed to provide a helical flow path for the solution over a cylindrical porous filter which captures the particulate matter contained by the solution being f...	06/03/1986
4577498	Double multiple change-over valve, for controlling the operation of a water treatment plant A multiple change-over valve which can be set into various positions suite for the operation of a water treatment plant. A moulded synthetic resin body defines two valve units with seats for two movable assemblies controlled by cylinder-piston systems su...	03/25/1986
4504390	Selectable filter assembly A filter arrangement has two hollow, coaxial, cylindrical filter elements, one of which is closed at one end and the other of which is connected to a clean fluid outlet. The outsides of the filter elements are separated from each other by an intermediate ...	03/12/1985
4210538	Filter back-washing Apparatus for removing suspended solids from electroplating solutions and the like includes a housed cluster of slotted plastic tubes about which are fitted fabric filter sleeves and through which the solution is normally forced into the tubes continuousl...	07/01/1980
4105555	Multi-port valve A valve is provided adapted to multiple modes of use including filter, backwash, rinse, recirculate, and direct to waste, on a swimming pool filter of the type normally filtering water under pressure through a backwash-regenerable filtering medium dispose...	08/08/1978
4046692	Domestic water control unit A control unit is formed of a housing containing a filter with an inlet and outlet in line above the filter, the latter forming a channel with the housing; a pressure reducer is positioned between the inlet and the outlet above the filter. A rotary valve ...	09/06/1977

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Class 210/426 - Encased