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:
Dec. 02, 1986
Filed:
Nov. 08, 1985
Applicant:
Inventors:
Hedayat H Hassanzadeh, Houston, TX (US);
Guy L McClung, III, Spring, TX (US);
Assignee:
Weatherford U.S., Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
13762427 ; 251 66 ; 137 75 ;
Abstract
An auto-fill flow valve for use in providing valving action in a conduit, the valve having a releasable locking mechanism which prevents the valving element from moving to seat against the valve seat until the locking mechanism is released. Also provided is a valve guide for receiving the releasable locking mechanism and holding it against the valving element.