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:
Apr. 06, 2004
Filed:
Oct. 26, 2002
Applicant:
Inventors:
Lionel J. Milberger, Houston, TX (US);
Darren W. T. Mills, Houston, TX (US);
Assignee:
Dril-Quip, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 2/912 ;
U.S. Cl.
CPC ...
E21B 2/912 ;
Abstract
A tubing hanger positioned within the bore of a wellhead body has a vertical bore from which a tubing string may be suspended within a well bore. When the hanger is landed, a fluid passageway in the tubing hanger has one end in fluid communication with a passageway in the wellhead body and its other end connected to a pressure responsive downhole function. The poppet valve mounted in the passageway is urged closed, and when opened permits fluid pressure from a source to be supplied to the function.