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:
Sep. 27, 1977
Filed:
Nov. 11, 1975
Applicant:
Inventor:
William L Sheppard, Romulus, MI (US);
Assignee:
AVM Corporation, Jamestown, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
137242 ; 13762547 ; 251 84 ; 251175 ; 251181 ; 251185 ;
Abstract
A fluid valve particularly suited for controlling the flow of coolant in an automobile heater system and a vacuum responsive servo for actuating the valve. The valve, two embodiments of which are disclosed, has improved sealing means and the servo includes improved sealing of the diaphragm with respect to the servo actuating element and an improved two-piece servo housing. A novel connection between the servo and the valve is also provided, having reduced backlash and less tendency to bind.