Class 210/229 - Imperforate base recess in plate

Subclass of Class 210 - Liquid purification or separation
Definition: Apparatus in which the filter sections are of I or channel
No. of patents: 29
Last issue date: 02/05/2008

Number	Title	Issue Date
7326341	Membrane filter press The invention relates to a membrane filter press. On operation of such a press a secure generation of the necessary pressing pressure can be guaranteed with a membrane filter press that has at least one membrane filter plate, a baseplate with thickened edge region, ...	02/05/2008
7159874	Sealing construction A sealing construction provided with a plate member of metal and a rubber member forming a sealing portion and unitedly fixed to the plate member on which a ring concave groove is formed on an obverse face. And, plural through holes, having enlarged opening end port...	01/09/2007
6919024	Press membrane from a rubber-elastic material The invention relates to a press membrane (9) for a filter plate (1′) of a filter press. Said press membrane consists of a rubber-elastic material and is supported by the filter plate (1′) while supporting a parallel filter cloth (14)...	07/19/2005
6866777	Laminated modular water filter A laminated modular water filter includes superposed annular plates. A filter unit is disposed between each adjacent pair of the annular plates. The annular plates include a top plate, a bottom plate, a plurality of intermediate plates, and at least one flow-guiding...	03/15/2005
6852220	Filter plate of a filter press A filter press for filtering suspensions includes plural parallel filter plates that can be displaced relative to one another. In a filtering position, the filter plates are compressed to a package that forms a filter chamber provided with at least one filter cloth ...	02/08/2005
6716347	Wear resistant inserts for filter press plates A filter plate for a filter press assembly is disclosed which is structured with replaceable wear elements to increase the resistance of the filter plate to degradation caused by processing of abrasive filtrates. While the wear elements may eventually degrade due to...	04/06/2004
6190552	Salt platform A grid (250, 280) is disclosed which can be used as part of a salt platform (10, 50, 80) to support salt in an ion exchange water softener. The grid is preferably formed of ABS plastic and has a border portion (252) and bands (254, 256) without holes (274...	02/20/2001
5855778	Filter press A filter press having a horizontal stack of filter plate assemblies, in which removal of filter cake is automated by means of a vibration/shifter carriage that can be moved in steps along a stack of filter plates after a press closing head has been retrac...	01/05/1999
5851387	Filter plate feed port clamp A feed port clamp member is disclosed for placement through and about the feed port of a filter plate to provide an abrasion-resistant surface through the feed port of the filter plate to prevent degradation of the underlying filter media and filter plate...	12/22/1998
5843310	Filter unit for filter press Since a filter unit is formed by causing an upper portion support bar for a filter cloth put on a filtering surface of a filter plate to be engaged to a washing pipe integrally provided for the filter plate, a filtering mechanism portion of a filter press...	12/01/1998
5804070	Filter press for filtering suspensions, especially sewage sludge A filter press for the filtration of suspensions has a frame, a support plate (1), a pressure plate (2) mounted in the frame and a set of vertically arranged filter plates (4) between the support plate (1) and the pressure plate (2). The filter plate (4) ...	09/08/1998
5770063	Plate-retaining assembly for filter press A filter-plate assembly has a support plate having an outwardly directed face and formed with an annular groove opening outward at the face and a chamber plate confronting the face of the support plate, forming therewith an inlet compartment, and formed w...	06/23/1998
5605621	Unloading device for filter press The unloading device for filter press has upper means for supporting a series of filtering cloths which are associated with the opposite front surfaces of a corresponding series of plates arranged in a pack, the plates being compressible between a fixed h...	02/25/1997
5484526	Membrane plate for plate filter presses A membrane plate for a filter press includes a plate member composed of a plate wall having a peripheral region provided with a plate wall groove and a plate frame surrounding the plate wall. A flexible press membrane is disposed adjacent at least one sid...	01/16/1996
5453184	Filter carrier The present invention relates to a filter carrier 1 for the construction of a filter tower 9. To simplify the construction on the whole, the invention provides for a seal which is arranged on the pressure-exerting plate of the filter carrier and comprises...	09/26/1995
5445733	Plate filter A plate filter press includes a plurality of face-to-face arranged filter plates movable into open and closed positions. Any two adjoining filter plates together define a filter chamber bounded by a continuous, raised sealing edge carried on at least one ...	08/29/1995
5240605	Spiral filter A spiral filtering device disposed within a frame consisting of two draw bars and two end pieces. The spiral filter consists of at least one spiral plate and at least two support plates with attached filter plates inserted between two end plates. On each ...	08/31/1993
5198123	Plate filter press A plate filter press for the mechanical separation of solids from a liquid forming a suspension. The plate filter press is made of a plurality of vertical membrane plates and filter plates, the membrane plates and filter plates alternating. The space betw...	03/30/1993
5051179	Membrane filter plate for filter presses A membrane filter plate for filter presses includes either a membrane holding frame or plate having dovetailed recesses; at least one membrane having an associated covering frame; each membrane and covering frame combination having an associated filter cl...	09/24/1991
5045191	Non-clogging filtrate outlet stopper for use in a plate filter press The plate filter press is designed for removing water from product and sewage sludges and includes several filter plates displacably suspended on horizontal carriers. Each of the filter plates includes grooves formed thereon leading to outlet openings loc...	09/03/1991
5021155	Membrane filter plate A filter plate arrangement for a filter press which includes a carrier plate, at least one membrane arranged on the side of the carrier plate having spacing ribs for positioning a filter cloth, a sealing edge frame for securing the membrane to the carrier...	06/04/1991
5011601	Filter plates for plate filter presses The invention relates to filter plates of plate filter presses, particularly for freeing sewage sludge from water. The problem of premature failure of the filter cloth is overcome in that the filter cloth is fastened only at some of the support bosses sur...	04/30/1991
4948501	Membrane filter plate Membrane filter plate for a filter press or the like, with a carrier plate, at least one membrane arranged on one side of the carrier plate and preferably provided with spacing cams or the like for applying a filter cloth or the like and a sealing edge su...	08/14/1990
4897190	Membrane filter plate Membrane filter plate for a filter press or the like, with a carrier plate, at least one membrane arranged on one side of the carrier plate and preferably provided with spacing cams or the like for applying a filter cloth or the like and a sealing edge su...	01/30/1990
4832840	Membrane filter plate having improved bending characteristics of the membrane Membrane filter plate for a filter press or the like, with a carrier plate, at least one membrane arranged on one side of the carrier plate and preferably provided with spacing cams or the like for applying a filter cloth or the like and a sealing edge su...	05/23/1989
4826593	Membrane filter press A filter press comprises a plurality of membrane filter plates each comprising a base plate and an elastic membrane on at least one side of the base plate. The base plate has a circumferential raised plane edge portion surrounding a recess with a step-for...	05/02/1989
4776955	Press wall for a filter element of a filter press The press wall is provided for a filter element of a filter press comprising a plurality of filter elements clamped together edgewise forming filter chambers for the suspension to be filtered. A filter element carries on one or both sides a press wall is ...	10/11/1988
4316803	Filter support of plates for filter presses A support for the plates of filter presses and filters for filtering over a filter wall, for instance over a filter cloth or filter paper. The support is provided with regularly oriented projections. The upper surfaces of the projections, which are in con...	02/23/1982
4229292	Countercurrent liquid-solid contacting apparatus A countercurrent liquid-solid contacting apparatus comprises a liquid purifying column for substantially purifying a liquid by passing the liquid upwardly through a bed of purifying material and a regenerating column for regenerating the purifying materia...	10/21/1980

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Class 210/229 - Imperforate base recess in plate