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:
Jan. 29, 1991
Filed:
Apr. 25, 1990
Applicant:
Inventor:
Richard A Donner, Hanover Park, IL (US);
Assignee:
Eaton Corporation, Cleveland, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; B08B / ; F16K / ;
U.S. Cl.
CPC ...
137242 ; 152565 ; 92 9 / ; 251 3003 ; 251 3005 ; 251 46 ;
Abstract
A pilot operated, diaphragm actuated fluid valve assembly having an annular main valve seat with a tapered annular surface disposed therearound. A movable diaphragm has a generally flat central main valving surface thereon and an integrally formed annular wiper extending outwardly therefrom. The annular wiper contacts the tapered annular surface a relatively small distance before the main valving surface contacts the main valve seat.