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:
Aug. 18, 2015
Filed:
Dec. 19, 2012
Applicant:
Tescom Corporation, Elk River, MN (US);
Inventors:
Scott Douglas Mattson, Zimmerman, MN (US);
Eric Jacob Burgett, Maple Grove, MN (US);
Thomas William Logan, Rogers, MN (US);
Assignee:
TESCOM CORPORATION, Elk River, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 17/16 (2006.01); F16K 37/00 (2006.01); F16K 17/04 (2006.01);
U.S. Cl.
CPC ...
F16K 37/00 (2013.01); F16K 17/04 (2013.01); F16K 37/0008 (2013.01); F16K 37/0058 (2013.01); Y10T 137/8158 (2015.04);
Abstract
Apparatus to visually indicate a leak from a relief valve are disclosed. In one example, an apparatus is disclosed that includes a pipe plug having a head and a shaft. The pipe plug is to attach to a relief valve. An opening is to extend through the head and shaft. The apparatus also includes a first flexible membrane to cover an end of the opening. In some examples, the first flexible membrane is to expand when fluid is released via the relief valve into the opening of the pipe plug.