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. 30, 2002
Filed:
Apr. 17, 2001
Applicant:
Inventors:
Glenn Ray Davis, Euless, TX (US);
Stuart Morton Dennistoun, Carrollton, TX (US);
Assignee:
Halliburton Energy Services, Inc., Dallas, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 1/503 ; E21B 3/410 ;
U.S. Cl.
CPC ...
F16K 1/503 ; E21B 3/410 ;
Abstract
A valve ( ) for controlling fluid flow therethrough in downhole applications is disclosed. The valve ( ) comprises a valve housing having a valve closure mechanism ( ) and a valve seat ( ) disposed therein. The valve closure mechanism ( ) has sealing surface ( ) and a secondary load bearing surface ( ). The valve seat ( ) has a valve seat sealing surface ( ) that mates with the sealing surface ( ) of the valve closure mechanism ( ). The secondary load bearing surface ( ) of the valve closure mechanism ( ) mates with a valve secondary load bearing surface ( ) which may be supported by the valve seat ( ).