Back to results
US 5,474,585 AGranted
Filtering apparatus
AssigneePall Corporation
InventorsStephen Geibel, Ulrich Otto, Glen Petaja, Eric Simonson
Life of this patent
Estimating the term…
Abstract
A filtering apparatus includes a filter vessel having an inlet and an outlet for fluid. A tube sheet is disposed within the filter vessel and separates the inlet from the outlet. A plurality of elongated filter elements extend nonvertically from the tube sheet, each filter element having a first end and a second end farther from the tube sheet than the first end and being at a different height than the first end.
Claims68
A filtering apparatus comprising:
- a filter vessel having an inlet and an outlet for fluid;
- a tube sheet disposed within the filter vessel and dividing the filter vessel into a first chamber for unfiltered fluid communicating with the inlet and a second chamber for filtered fluid communicating with the outlet, the tube sheet surrounding the second chamber between first and second lengthwise ends of the second chamber;
- and
- a plurality of elongated filter elements extending nonvertically from the tube sheet, each filter element having a first end and a second end farther from the tube sheet than the first end and being at a different height than the first end.
1 more element
A filtering apparatus comprising:
- a filter vessel having an inlet and an outlet for fluid;
- a tube sheet disposed within and formed separately from the filter vessel and separating the inlet from the outlet and having a double-walled structure with first and second opposing walls separated by a space and a spacer extending around a periphery of the tube sheet and sealingly connected between the walls;
- and
- a plurality of filter elements supported by the tube sheet.
1 more element
A filtering apparatus comprising:
- a filter vessel having an inlet and an outlet for fluid;
- a tube sheet dividing an interior of the filter vessel into a first chamber for unfiltered fluid communicating with the inlet and a second chamber for filtered fluid communicating with the outlet of the filter vessel, the tube sheet having inner and outer walls surrounding the second chamber between first and second ends lengthwise ends of the second chamber, the outer wall surrounding the inner wall and being separated from the inner wall by a space;
- and
- a plurality of elongated filter elements extending from the outer wall of the tube sheet.
1 more element
A filtering apparatus comprising:
- a filter vessel having an inlet and one or more outlets for fluid;
- a plurality of tube sheets disposed within the filter vessel, each tube sheet surrounding a different corresponding chamber for filtered fluid having an interior communicating with one of the outlets;
- and
- a plurality of filter elements disposed in the filter vessel, each of the tube sheets having a plurality of the filter elements extending nonvertically therefrom,
- the interior of each chamber being accessible for the removal of filter elements from the corresponding tube sheet into the chamber.
2 more elements
A filtering apparatus comprising:
- a filter vessel having an inlet and an outlet for fluid;
- a tube sheet disposed within the filter vessel separating the inlet from the outlet and surrounding a chamber for filtered fluid communicating with the outlet, the tube sheet having an upright outer surface;
- and
- a plurality of filter elements supported by the upright surface of the tube sheet,
- the interior of the chamber being accessible for the removal of filter elements from the tube sheet.
2 more elements
A filtering apparatus comprising:
- a filter vessel having an inlet and an outlet for fluid;
- a tube sheet disposed within the filter vessel and separating the inlet from the outlet and having a first tubular wall and a second tubular wall surrounding the first tubular wall and separated from the first tubular wall by a space;
- a plurality of filter elements extending from the second wall of the tube sheet;
- and
- a passage for cleaning fluid communicating between the space and the outside of the vessel for supplying cleaning fluid to the filter elements through the space.
2 more elements
A filtering apparatus comprising:
- a filter vessel having an inlet and an outlet for fluid;
- a tube sheet disposed within the filter vessel and dividing the filter vessel into a first chamber for unfiltered fluid communicating with the inlet and a second chamber for filtered fluid communicating with the outlet, the tube sheet comprising first and second opposing walls separated by a space and a plurality of support tubes each rigidly secured to the first and second walls of the tube sheet and communicating between the first and second chambers;
- a plurality of filter elements disposed in the first chamber and each supported by one of the support tubes.
A filtering apparatus comprising:
- a filter vessel having an inlet and an outlet for fluid;
- a tube sheet disposed within the filter vessel and dividing the filter vessel into a first chamber for unfiltered fluid communicating with the inlet and a second chamber for filtered fluid communicating with the outlet, and
- a plurality of elongated ceramic candle filter elements mounted on and sloping nonvertically from the tube sheet.
Dependencies are inferred from the claim text.