Class 29/902 - FILTER MAKING

Subclass of Class 29 - Metal working
Definition: Cross-reference art collections of documents relating to
No. of patents: 24
Last issue date: 07/26/2005

Number	Title	Issue Date
6921423	Separator tank assembly and method of manufacture A separator tank assembly including a separator tank having an interior chamber, a corrosion-resistant layer applied over at least a portion of the separator tank interior chamber, and a separator element positioned within the interior chamber of the tank. The separ...	07/26/2005
6863706	Module for use as a filter, catalytic converter, or heater, and method for the manufacture thereof In order to achieve the object of providing a module having improved mechanical characteristics as well as a wide range of application, it is proposed that the module include at least one layer having open porosity, having an outer side facing a medium flowing into ...	03/08/2005
6863811	Filter cartridge incorporating a peripheral compatibility matrix A filter assembly employs inward and outward radially displaced portions of a peripheral shoulder on the cartridge as components of a cartridge compatibility matrix. Alternative base assemblies include mounting structures complementary to the configuration of the pe...	03/08/2005
6840977	Coolant for air-bag gas generator and production method therefor The present invention provides a coolant for an air bag inflator in which unevenness in density in the axial direction is reduced even though the coolant is compressed in its axial direction. The coolant is a molded product made of wire rods and compressed in...	01/11/2005
6817466	Apparatus for manufacturing filter cartridges, and method of using same An apparatus for placing an end cap on a cylindrical workpiece includes a stationary support base, a guide member, a push bar, and an applicator device. The guide member is affixed to the stationary support base, and includes a ramp, disposed at an angle to the hori...	11/16/2004
6785964	Method for making a mechanical screen cylinder A method of manufacturing a mechanical basket (P) of substantially cylindrical shape for centripetal or centrifugal flow relative to an axis (R) and having rings (A) lying in planes perpendicular to the axis of revolution and wires (F) rigidly connected to the rings...	09/07/2004
6485643	Modular base for a filter cartridge and method of manufacturing therefor A modular base for a filter assembly includes a header portion defining a cavity for receiving a filter cartridge and a communication module defining fluid pathways to and from the base. Brackets extend from the header portion and include slots. Yokes ext...	11/26/2002
6458279	Fuel filter and production process A fuel filter having a formulation of a stable intermetallic compound of materials such as tin and antimony. The filter may have an integral porous structure or may be in the form of particles. It removes trace metal ions such as Ca and Na ions....	10/01/2002
6403008	Method for overwelding filter cassettes and devices produced therefrom The present invention provides a filter cartridge or filter unit (11) produced by a thermoplastic overmolding process that allows for using a single mold for overmolding a variety of different sized filter elements (12) or membranes and a method for seali...	06/11/2002
6340089	Method of fabricating undulating screen for vibratory screening machine A screening screen assembly for a vibratory screening machine including an apertured plate, and a subassembly of an undulating support screen and fine screening screen and finer screening screen bonded to each other by a fused plastic grid and bonded to t...	01/22/2002
6309552	Slack filter tube having an internal resilient support extending there through A filter tube for use in earth coated type filters includes a flexible permeable tubular sheet internally supported by a helical spring. The internal spring is connected between opposite ends of the filter tube to support the full length of the tube wall....	10/30/2001
6053332	Method of fabricating undulating screen for vibratory screening machine A screening screen assembly for a vibratory screening machine including an apertured plate, and a subassembly of an undulating support screen and fine screening screen and finer screening screen bonded to each other by a fused plastic grid and bonded to t...	04/25/2000
6047834	Process for the manufacture of a sifting device with slit-shaped openings and an appropriately manufactured sifting device Process for manufacturing a sifting device (or strainer baskets) for use in, e.g., in the paper industry for sorting and/or filtering fiber pulp suspensions. Sorter slits may be created between a plurality of substantially parallel rods inserted into resp...	04/11/2000
6023834	Method for assembling an improved bead-lock high-pressure filter utilizing a stamped metal cover An improved, spin-on, bead-lock filter which is particularly adapted for use as a high-pressure oil filter in a diesel engine is provided which comprises a housing containing a filter medium and having an inwardly deformed periphery, and a cover assembly ...	02/15/2000
5968357	Screen basket having a removable and replaceable cylindrical mesh liner A screen basket for filtering an aqueous fiber suspension includes a cylindrical foraminous filter element, anchoring collars surrounding and fixed to opposite ends of the filter element, at least two support rings surrounding the filter element, and supp...	10/19/1999
5938925	Progressive gap sand control screen and process for manufacturing the same A progressive gap sand control screen comprising a plurality of parallel ribs spaced around an axis and a screen wire wrapped around the plurality of ribs having turns which extend along the length of the plurality of ribs such that adjacent turns have ga...	08/17/1999
5876552	Method of fabricating screen for vibratory screening machine A screening screen assembly for a vibratory screening machine including an apertured plate or frame, and a bonded subassembly of an undulating support screen and fine screening screen and finer screening screen bonded to each other by a fused plastic grid...	03/02/1999
5833853	Radial-flow filter and method of manufacture A method of manufacture of a radial-flow filter particularly suitable for use as an input filter in a subterranean fluid (oil, gas, water) well starts with a length L of multi-perforate pipe, which may be an integral part of the production tubing of the w...	11/10/1998
5788860	Method for manufacturing a supporting plate for a filter A method for manufacturing a supporting plate provided inside of a disc-type filter having filter media at surface portions thereof including the steps of: forming an annular plate having opposed surfaces; and forming a plurality of wave portions on the annula...	08/04/1998
5711879	Radial-flow filter and method of manufacture A method of manufacture of a long radial-flow filter particularly suitable for use as an input filter in a subterranean fluid (oil, gas, water) well starts with a length of multi-perforate pipe, which may be an integral part of the well 's production tubi...	01/27/1998
5673483	Method for constructing an inflator filter made of wrapped mesh An improved method for fabricating a filter for use in automotive air bag inflators which comprises forming a hollow cylindrical inner core or combustion screen of filter material and outer filter layers wound outward from the surface of the core so as to...	10/07/1997
5589067	Expanded metal filter support structure A generally planar expanded metal filter media support structure is provided. The filter media support structure includes a first row of perforations mutually separated, one from another, by a perforation distance along a first axis parallel to the plane ...	12/31/1996
5504987	Device for manufacturing a screening body A screening body for a pulp digester includes two, spaced apart ring supporting a plurality of axially extending screening bars each of which has a foot portion frictionally received in and welded to a correspondingly formed recess formed on the inner sid...	04/09/1996
5490930	Filter A spin-on filter includes a baseplate secured to an end cover and further includes a filter element disposed in a canister having an open end. The end cover is secured to the open end of the canister by seaming a flange formed at the edge of the end cover...	02/13/1996

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Class 29/902 - FILTER MAKING