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:
May. 09, 2006
Filed:
Jul. 10, 2003
Applicants:
Bob Mcguire, Oklahoma City, OK (US);
L. Murray Dallas, Fairview, TX (US);
Inventors:
Bob McGuire, Oklahoma City, OK (US);
L. Murray Dallas, Fairview, TX (US);
Assignee:
HWC Energy Services, Inc., Houston, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
E21B 19/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
Adapters for connecting to a double-locking casing mandrel of an independent screwed wellhead include a lockdown flange with an adapter pin, and a retainer flange that may be used with or without the adapter pin. The retainer flange has a top surface with circumferentially-spaced threaded bores that permit well stimulation equipment to be mounted thereto. The retainer flange threadedly connects to a pin thread at a top of the casing mandrel, and therefore provides a low profile mounting flange for well stimulation equipment.