Liquid purification or separation – With repair or assembling means
Reexamination Certificate
2011-06-14
2011-06-14
Lithgow, Thomas M (Department: 1776)
Liquid purification or separation
With repair or assembling means
C210S457000, C210S443000, C210SDIG017
Reexamination Certificate
active
07959804
ABSTRACT:
A filter media includes a media pack having a central opening that extends between opposing ends of the media pack. A support member, such as a center tube, extends through the central opening and supports one of the opposing ends. A second support member, such as a guide, is secured to the second support member and supports the other of the opposing ends. The guide loads the components within the filter to provide desired sealing. The guide is provided by flexible plastic tabs in one example and by an elastomeric grommet in another example.
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European Search Report dated Apr. 3, 2008 in corresponding European case.
Most recently filed Reply, dated Jul. 14, 2010, for U.S. Appl. No. 11/409,573.
Most recently filed Reply, dated Jun. 1, 2010, for U.S. Appl. No. 11/410,122.
Most recently filed Reply, dated Dec. 3, 2010, for U.S. Appl. No. 11/410,122.
Cline L. Steven
Wright Allen Buhr
Crowell & Moring LLP
Lithgow Thomas M
Purolator Filters NA LLC
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