Gas separation: apparatus – Solid sorbent apparatus – Plural solid sorbent beds
Reexamination Certificate
2005-06-17
2009-02-17
Lawrence, Frank M (Department: 1797)
Gas separation: apparatus
Solid sorbent apparatus
Plural solid sorbent beds
C096S134000, C055S385200, C055S511000, C119S450000
Reexamination Certificate
active
07491265
ABSTRACT:
A cover member adapted to confine gaseous emissions from animal waste in a waste collection area having a base for contacting and floating on at least a portion of a surface of the animal waste and a cover with at least one surface extending from the base. The cover member can include a buoyant frame to define a generally pyramid shape. The cover includes a layer of geotextile material and can include organic filter material with the internal volume of the cover member. A plurality of cover members can be closely aligned to cover a substantial portion of the surface of the animal waste.
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Johnson Dennis J.
Johnson Matthew W.
Faegre & Benson LLP
Lawrence Frank M
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