Gas separation – Two or more separators
Reexamination Certificate
2006-12-22
2008-08-12
Smith, Duane (Department: 1797)
Gas separation
Two or more separators
C055S484000, C055S493000, C055S497000, C055S521000
Reexamination Certificate
active
07410520
ABSTRACT:
A method for packaging, shipping, displaying and positioning a foldable filter having a hinge into an air filtration unit wherein the foldable filter is pivotable about the hinge between a collapsed position and an expanded position. The method includes the steps of positioning the foldable filter in the collapsed position, inserting the collapsed foldable filter into a package, shipping the collapsed foldable filter within the package to a store, positioning the packaged foldable filter for display at the store, removing the foldable filter from the package, moving the foldable filter to the expanded position and positioning the foldable filter into the air filtration unit. The foldable filter includes first and second frame sections connected by the hinge and pleated filter material that includes at least one pleat edge extending generally parallel to a hinge axis. The hinge is formed at least partially by a portion of the at least one pleat edge.
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Carroll John F.
Haeberle Robert
Nowak Steven J.
Hamilton Beach Brands, Inc.
Panitch Schwarze Belisario & Nadel LLP
Pham Minh-Chau T.
Smith Duane
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