Gas separation – With means securing or retaining separating media – Unit or cohesive sheet-like media in flow line or frame
Reexamination Certificate
2008-05-20
2008-05-20
Smith, Duane (Department: 1797)
Gas separation
With means securing or retaining separating media
Unit or cohesive sheet-like media in flow line or frame
C055S502000
Reexamination Certificate
active
07374595
ABSTRACT:
The disclosure provides a filter for mounting in a vacuum cleaner, such as a wet and dry vacuum cleaner, having a seal at generally each end, and a corresponding mounting structure that focuses compressive sealing forces on specific seal components rather than the filter body as a whole. The sealing is directed primarily to portions of the seals on the filter ends that are compressed or “pinched” between adjacent surfaces. The concentrated compressive stress provides a well-defined region to consistently provide a sealing engagement. The compressive force can thereby remain relatively constant through multiple uses of the filter.
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Emerson Electric Co.
Locke Lord Bissell & Liddell LLP
Smith Duane
Turner Sonji
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