High pressure filter apparatus and related methods
AssigneeEntegris, Inc.
InventorsBenjamin Schooler, Virendra Warke
Life of this patent
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Abstract
Described are high pressure filter housings and apparatuses that are useful to contain a fluid under high pressure, with example housings including first and second pieces having complimentary tapered joint surfaces that can form a fluid-tight seal without a gasket located between the surfaces, and methods of making and using the high pressure filter apparatuses.
Claims35
A high pressure filter apparatus having sealing surfaces between a housing piece and an end piece, the filter apparatus comprising:
- the housing piece comprising
- a first tapered joint surface,
- a filter chamber, and
- a fluid flow opening connected to the filter chamber;
- a filter located in the filter chamber,
- the end piece comprising
- a second tapered joint surface contacting the first tapered joint surface under pressure, without a gasket material placed between the first tapered joint surface and the second tapered joint surface, and
- a fluid flow opening connected to the filter chamber, and
- a mechanical fitting that releasably secures the end piece to the housing piece with pressure to form a seal between the first tapered joint surface and the second tapered joint surface.
A method of filtering a fluid, the method comprising:
- providing a high pressure filter apparatus comprising
- a housing piece comprising
- a first tapered joint surface,
- a filter chamber, and
- a fluid flow opening connected to the filter chamber;
- a filter located in the filter chamber,
- an end piece comprising
- a second tapered joint surface contacting the first tapered joint surface under pressure, without a gasket material placed between the first tapered joint surface and the second tapered joint surface, and
- a fluid flow opening connected to the filter chamber, and
- a mechanical fitting that releasably secures the end piece to the housing piece with pressure to form a seal between the first tapered joint surface and the second tapered joint surface,
- passing fluid that contains an impurity through the filter to cause the impurity to be removed from the fluid.
A method of forming a high pressure filter apparatus, the method comprising:
- providing:
- a filter,
- a housing piece comprising
- a first tapered joint surface,
- a filter chamber, and
- a fluid flow opening connected to the filter chamber;
- an end piece comprising a second tapered joint surface adapted to contact the first tapered joint surface under pressure,
- securing the filter at a location within the filter chamber,
- connecting the end piece to the housing piece using a mechanical fitting, with pressure to form a seal between the first tapered joint surface and the second tapered joint surface, without placing a gasket material between the first tapered joint surface and the second tapered joint surface.
A high pressure filter apparatus comprising:
- a fluid inlet at an inlet end,
- a fluid outlet at an outlet end,
- metal sidewalls between the fluid inlet and the fluid outlet,
- a filter chamber defined by the metal sidewalls, and
- a filter located in the filter chamber,
- wherein the apparatus is capable of containing fluid in the filter chamber at a fluid pressure of at least 40,000 psig at 20 degrees Celsius without leaking.
Dependencies are inferred from the claim text.