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.

Date of Patent:
Apr. 27, 2010

Filed:

Jun. 25, 2007
Applicants:

Robert Arnold Judge, Houston, TX (US);

Dustin Dean Gass, Houston, TX (US);

Inventors:

Robert Arnold Judge, Houston, TX (US);

Dustin Dean Gass, Houston, TX (US);

Assignee:

Hydril USA Manufacturing LLC, Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

A ram-type blowout preventer includes a first ram block having a first shearing element and a first sealing element, a second ram block opposing the first ram block and having a second shearing element and a second sealing element, a load intensifying member coupled to the first ram block, wherein the load intensifying member is a stiff cantilever beam, a receptacle of the second ram block to receive the load intensifying member when the first ram block and the second ram block close together, and shims between a top surface of the load intensifying member and a top surface of the receptacle. The load intensifying member is configured to apply a spring force when the load intensifying member is engaged within the receptacle.


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