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:
Jul. 23, 2013
Applicant:
Acorn Engineering Company, City of Industry, CA (US);
Inventors:
James C. Graves, Lake Bluff, IL (US);
Dejan Zivancevic, Arlington Heights, IL (US);
Assignee:
Acorn Engineering Company, City of Industry, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05D 23/13 (2006.01); G05D 23/185 (2006.01); G05D 23/02 (2006.01);
U.S. Cl.
CPC ...
G05D 23/1346 (2013.01); G05D 23/02 (2013.01); G05D 23/1852 (2013.01); G05D 23/1856 (2013.01); G05D 23/021 (2013.01); G05D 23/022 (2013.01);
Abstract
Embodiment thermostatic valves are protected against damage to the wax motor from the leakage of hot water into the valve when the hot water inlet is closed. Embodiments include an improved temperature motive means with fewer parts than conventional valves and with an improved sealing relation between the wax motor/shuttle and the water ports.