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. 21, 1978
Filed:
Dec. 23, 1976
Applicant:
Inventor:
Joseph A Birli, Richmond Heights, OH (US);
Assignee:
Design & Manufacturing Corporation, Willoughby, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F03G / ;
U.S. Cl.
CPC ...
60530 ; 60531 ;
Abstract
An electro-thermal actuator includes a valve in a partition between a boiler chamber containing the fluid and a variable volume chamber formed in part by a diaphragm. Such valve consists of a bore through the partition which is normally closed by a limited portion of the spring biased diaphragm, the bore being opened when the boiler chamber fluid pressure at the limited diaphragm portion overcomes the spring immediately to expose the entire diaphragm to such relatively high pressure rapidly to drive the same through the expansion stroke.