Collapsible filter element

Liquid purification or separation – Plural distinct separators – Filters

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C210S487000, C210S497010, C210S451000

Reexamination Certificate

active

07001517

ABSTRACT:
A filter element assembly has at least two cylindrically shaped and concentrically arranged filter media sleeves each connected at one end thereof to an inlet plate and each connected at the other end to a closed end terminal plate. Openings are provided in the inlet plate to permit entry of liquid to be filtered into the annular space between the filter sleeves. The closed end terminal plate prevents flow of unfiltered liquid from the annular space between the sleeves so as to force the liquid through the porous media of the sleeves to effect filtration.

REFERENCES:
patent: 410767 (1889-09-01), Pierce
patent: 446342 (1891-02-01), Goodacre
patent: 575478 (1897-01-01), Haefner
patent: 1647799 (1927-11-01), Hammer
patent: 1754320 (1930-04-01), Hopkins
patent: 1840153 (1932-01-01), Bull
patent: 2387368 (1945-10-01), Vokes
patent: 2405838 (1946-08-01), Lawson et al.
patent: 2792118 (1957-05-01), Kraissl, Jr.
patent: 3029951 (1962-04-01), Cannon
patent: 3053391 (1962-09-01), Nelson
patent: 3249228 (1966-05-01), Arvanitakis
patent: 3261468 (1966-07-01), Dick
patent: 3262563 (1966-07-01), Pall
patent: 3280982 (1966-10-01), Barto
patent: 3347386 (1967-10-01), Kraissl, Jr.
patent: 3420377 (1969-01-01), Vandersip
patent: 3672506 (1972-06-01), Syrjanen
patent: 3890290 (1975-06-01), McCabe
patent: 4081379 (1978-03-01), Smith
patent: 4166793 (1979-09-01), Turetsky
patent: 4253959 (1981-03-01), Tafara
patent: 4285814 (1981-08-01), Morgan, Jr.
patent: 4496459 (1985-01-01), Rosaen
patent: 4609465 (1986-09-01), Miller
patent: 4669167 (1987-06-01), Asterlin
patent: 4749485 (1988-06-01), DeGraffenreid
patent: 4769052 (1988-09-01), Kowalski
patent: 4877526 (1989-10-01), Johnson et al.
patent: 4956089 (1990-09-01), Hurst
patent: 5102545 (1992-04-01), Hoffman
patent: 5152890 (1992-10-01), Linnersten
patent: 5269919 (1993-12-01), von Medlin
patent: 5312544 (1994-05-01), Kinney
patent: 5358638 (1994-10-01), Gershenson
patent: 5417855 (1995-05-01), Gershenson
patent: 5431706 (1995-07-01), Paas
patent: 5454945 (1995-10-01), Spearman
patent: 5484529 (1996-01-01), Malugade et al.
patent: 5573666 (1996-11-01), Korin
patent: 5624559 (1997-04-01), Levin et al.
patent: 5645721 (1997-07-01), Carroll, Jr.
patent: 5910247 (1999-06-01), Outterside
patent: 6030531 (2000-02-01), Gershenson
patent: 63-107708 (1992-07-01), None
Loftex* “System 10” Special Filter Bag, Loeffler Filter-Technik GMBH, not dated.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Collapsible filter element does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Collapsible filter element, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Collapsible filter element will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3643685

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.