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:
Mar. 03, 1981
Filed:
Jun. 23, 1978
Applicant:
Inventors:
W Doyle Lamb, Decatur, IL (US);
Lawrence F Luckenbill, Decatur, IL (US);
Assignee:
A. W. Cash Valve Manufacturing Corporation, Decatur, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F03G / ;
U.S. Cl.
CPC ...
60527 ; 733683 ; 236 / ; 337394 ;
Abstract
A thermal element having a tubular casing with an open end, a volume of heat-responsive, expandable wax positioned in said casing at a distance from the open end thereof, a spherical resilient seal member compressively positioned in the casing adjacent said wax, a motion-transmitting pin extended between the seal member and the open end of the casing and having a relatively soft washer affixed thereto for engagement against the seal member and with at least one peripheral notch in the washer permitting flow of liquid thereacross.