Gas separation – With means facilitating transportability or handling of... – Handle feature for apparatus or part thereof
Reexamination Certificate
2007-05-01
2007-05-01
Pham, Minh-Chau T. (Department: 1724)
Gas separation
With means facilitating transportability or handling of...
Handle feature for apparatus or part thereof
C055S490000, C055S492000, C055S498000, C055S500000, C055S502000, C055S521000, C055S524000, C055SDIG007, C055SDIG031, C095S273000
Reexamination Certificate
active
11275873
ABSTRACT:
A filter arrangement includes a filter element, a frame construction secured to the filter element, and a handle member secured to the filter element. In preferred embodiments, the handle member is secured to the frame construction. Preferably, the filter element includes a central core member, wherein fluted filter media is coiled around the central core member. Preferably, the central core member includes a plurality of corrugations, wherein the corrugations mateably engage at least some flutes. Preferably, the handle member is integral with the central core member, and also includes a fastening member for connection to a frame construction on the filter element. Methods for cleaning air and servicing an air cleaner preferably include constructions as described herein.
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Translated copy of the contentions filed in European Opposition No. 00913578 by Mann & Hummel opposing Donaldson European Appl. 1 169 109, submitted Jan. 13, 2005.
Bishop Wayne R. W.
Gieseke Steven Scott
Golden Patrick
Juliar William M.
Musselman Wayne C.
Donaldson & Company, Inc.
Merchant & Gould P.A.
Pham Minh-Chau T.
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