1
Harold T Sawyer: Dynamic self-cleaning filter for liquids. Vernon D Beehler, Beehler Mockabee Arant and Jagger, June 19, 1979: US04158629 (56 worldwide citation)

A continuous self-cleaning filter for liquids has an outer resonant tube concentrically mounted around an inner composite tube in spaced relationship providing an annular chamber between them. There is an inflow at one end of the annular chamber for the liquid and an outflow at the other end for res ...


2
Roland A Levy, Emmanuel S Ramos: Subnanoscale composite, N2-permselective membrane for the separation of volatile organic compounds. New Jersey Institute of Technology, Klauber & Jackson, August 4, 1998: US05789024 (43 worldwide citation)

A composite membrane is disclosed which operates as a filter for liquids, solids and gases and combinations thereof, having high permeability for the filtrate, e.g., nitrogen passing therethrough, and high selectivity for matter retained thereby, e.g., volatile organic compounds, so that the N.sub.2 ...


3
Charles Doucet: Disc filter for liquids. Martin Smolowitz, February 7, 1984: US04430232 (40 worldwide citation)

A disc filter of the counter-current flow cleaning type in which the filtering body has a general cylindrical annular shape with a central cylindrical flow channel extending axially along the length of said filter body. It has annular solid filter elements spaced from each other in uniform sequence ...


4
Masakatsu Urairi, Kenji Matsumoto: Membrane filter for liquids and filtering device using the same. Nitto Denko Corporation, Sughrue Mion Zinn Macpeak & Seas, February 1, 1994: US05282965 (39 worldwide citation)

Objects of the present invention are to provide a membrane filter for liquids which is used in microfiltration or ultrafiltration of liquids such as chemicals, water, and the like and to provide a filtering device using the membrane. The membrane is a membrane filter for liquids which has been rende ...


5
Gerhard Ziemek: Filter for liquids. Kabel und Metallwerke Gutehoffnungshutte, Smyth Pavitt Siegemund Jones & Martella, September 9, 1980: US04221670 (27 worldwide citation)

The filter is constructed as a cylindrical or tapered body preferably having longitudinal grooves and ridges as flow channels, the body being made of thin metal, preferably gold plated nickel, to be self-supporting and having perforations to obtain a perviousness from 40 to 200 mesh (metric-DIN). A ...


6
Ulrich Conrad, Gerd Niemeier: Filter for liquids. Daimler Benz Aktiengesellschaft, Craig & Antonelli, September 27, 1977: US04051036 (24 worldwide citation)

A filter for liquids with a filter head provided with inlet and outlet channels and with a filter body arranged therebelow which is retained at the filter head by a central threaded connection, and in which the discharge of the liquid takes place centrally; a bolt engaging by means of a thread in th ...


7
Doucet Charles: Disc filter for liquids.. Doucet Charles, August 11, 1982: EP0057670-A2 (22 worldwide citation)

1. A disc filter for liquids, of the type with counter-flow cleaning and comprising a set of coaxial annular filter elements (1) between which spacer elements (6), made of an elastically deformable material of constant volume, are locally arranged so that these filter elements leave annular filtrati ...


8
Albert E Thomas: Non-drip and full prime filter. Hadd S Lane, July 9, 1991: US05030345 (20 worldwide citation)

A filter for liquids is disclosed, which has a base with a central inlet, and an outlet, a central post with a filtering element surrounding and sealing therewith, a cannister enclosing the element and releasably sealed to the base, a passageway in the post, which is sealed to the inlet, and which h ...


9
Petitjean Elie Raymond: Tubular filter with resilient deformable support. Comptior de la Filtration Cofi, January 11, 1972: US3633753 (20 worldwide citation)

A tubular filter for liquids or the like, including a deformable plastic perforate tubular member having a longitudinal slot permitting radial deformation thereof, and a plurality of longitudinal external channels with liquid-flow apertures at their base portions. A perforate cylindrical filter casi ...


10
Hans Gebert, Rolf M ohle, Dietmar Sonntag, Elke Bruss, Dietwart Guntert, Hubert M uller: Filter for liquids, in particular internal-combustion engine lubricant oils. Knecht Filterwerke, Collard & Roe P C, December 31, 1996: US05589060 (19 worldwide citation)

A filter for liquids is disclosed herein. The filter includes a filter housing containing an exchangeable filter element. A support part is provided within the housing that is separable from the at least one filter element and extends at least partly centrally through the interior space of the filte ...



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