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:
Jul. 01, 1980
Filed:
Mar. 14, 1979
Applicant:
Inventors:
David M McStravick, Houston, TX (US);
William M Roberts, Deer Park, TX (US);
Assignee:
Baker International Corporation, Orange, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166330 ; 251251 ; 251352 ;
Abstract
A valve apparatus is provided for use in a subterranean well and is responsive to manipulation of a fluid transmission conduit to manipulate a valve head relative to a valve seat between open and closed positions, the valve head means comprising camway slot means defined exteriorly thereon. Camway ball means are secured to the valve seat means and carriable in the camway slot means to pivot the valve head means as the head is rotated relative to its seat.