The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 20, 2018
Filed:
May. 02, 2016
Applicant:
Colorado Lining International, Inc., Parker, CO (US);
Inventors:
John Heap, Highlands Ranch, CO (US);
Andre Alan Harvey, Spring Valley, CA (US);
Assignee:
Raven Industries, Inc., Sioux Falls, SD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 19/00 (2006.01);
U.S. Cl.
CPC ...
B01D 19/0031 (2013.01); Y10T 29/49826 (2015.01);
Abstract
A holding tank cover includes a gas permeable insulating membrane and a gas impermeable cover layer sized to overlay and conceal the gas permeable membrane. Together, the gas permeable membrane and the gas impermeable cover layer facilitate a controlled transmission of gas between an interior of the holding tank and an environment external to the holding tank.