Liquid purification or separation – With repair or assembling means – Hoist or handle means
Reexamination Certificate
1999-02-26
2001-05-22
Savage, Matthew O. (Department: 1723)
Liquid purification or separation
With repair or assembling means
Hoist or handle means
C210S470000, C210S492000, C210S493400, C055S357000, C055S502000, C055S521000
Reexamination Certificate
active
06235195
ABSTRACT:
FIELD OF THE INVENTION
This disclosure describes filter constructions for filtering fluids, such as gas or liquid. In particular, the disclosure describes a filter element having a handle.
BACKGROUND OF THE INVENTION
Straight through flow filter elements have been used in systems for cleaning fluid passing therethrough. Straight through flow filter elements typically will have an inlet face and an oppositely disposed outlet face. In this manner, fluid flows in one certain direction upon entering the filter element at the inlet face and will have the same direction of flow as it exits the outlet face. Typically, straight through flow filter elements will be installed in a duct or housing of some sort. After a period of use, the filter element will require servicing, either cleaning or a complete replacement. If it is difficult or inconvenient to service the filter element, the user may delay the proper servicing, which can cause damage to whatever system is being filtered. Improvements to straight through flow filter elements are desirable.
SUMMARY OF THE DISCLOSURE
One aspect of the disclosure describes a filter arrangement. In certain implementations, the filter arrangement includes a filter element and a handle member secured to the filter element. The filter element is configured for straight through flow. For example, the filter element may typically have opposite first and second ends and a plurality of flutes. Each of the flutes has an end portion adjacent to the filter element first end, and a second end portion adjacent to the filter element second end. Alternating first end portions and second portions of adjacent flutes are closed. The handle member will typically be constructed and arranged to accommodate a grasping force applied by portions of a human hand.
Preferably, the filter element includes a central core member, with the flutes forming a coil around the central core member.
In preferred embodiments, the handle member is secured to the central core member.
In another aspect, the disclosure describes a system having a filter element installed in a duct in the system. The filter element may be configured for straight through flow. A method for servicing the system can include grasping a handle secured to the filter element, and pulling the handle to remove the filter element from the duct in the system.
REFERENCES:
patent: 2599604 (1952-06-01), Bauer et al.
patent: 2890796 (1959-06-01), Blood
patent: 2914785 (1959-12-01), Ela
patent: 3025963 (1962-03-01), Bauer
patent: 3209917 (1965-10-01), Yelinek
patent: 3912631 (1975-10-01), Turman
patent: 4065341 (1977-12-01), Cub
patent: 4255175 (1981-03-01), Wilkins
patent: 4394147 (1983-07-01), Caddy et al.
patent: 4678489 (1987-07-01), Bertelsen
patent: 4767531 (1988-08-01), Holzer
patent: 5069790 (1991-12-01), Mordeki
patent: 5211846 (1993-05-01), Kott et al.
patent: 5472463 (1995-12-01), Herman et al.
patent: 5536290 (1996-07-01), Stark et al.
patent: 5601717 (1997-02-01), Villette et al.
patent: 5820646 (1998-10-01), Gillingham et al.
patent: 1171615 (1989-07-01), None
patent: WO 97/40917 (1997-11-01), None
Donaldson & Company, Inc.
Merchant & Gould P.C.
Savage Matthew O.
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