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:
Oct. 01, 2019
Filed:
Sep. 27, 2017
Applicant:
Ademco Inc., Golden Valley, MN (US);
Inventors:
Frederick Hazzard, Plymouth, MN (US);
David Heil, Robbinsdale, MN (US);
Ravindra Khosla, Maple Grove, MN (US);
Assignee:
Ademco Inc., Golden Valley, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 31/128 (2006.01); F16K 7/17 (2006.01); F16K 31/126 (2006.01);
U.S. Cl.
CPC ...
F16K 31/128 (2013.01); F16K 7/17 (2013.01); F16K 31/1268 (2013.01); Y10T 137/87917 (2015.04);
Abstract
A gas valve assembly configured to operate without a pilot assembly is disclosed. In an illustrative embodiment, a servo valve actuates a diaphragm valve to selectively allow for fluid coupling of a gas inlet and gas outlet. The diaphragm valve may be a normally closed valve that opens in response to a pneumatic force resulting from the opening of the servo valve.