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. 03, 2019
Filed:
May. 31, 2017
Access Oilfield Services Lp, Norman, OK (US);
Shea Keller Wesson, Norman, OK (US);
Harold Robinson Wesson, Norman, OK (US);
Michael Scott, Blanchard, OK (US);
Other;
Abstract
A wellhead connection assembly is provided with a landing mandrel, a casing head, and a clamp ring. The landing mandrel and the casing head have mirrored annular grooves formed at an upper end and a lower end, respectively. The annular grooves form an upper flange on the landing mandrel and a lower flange on the casing head. The clamp ring is provided with at least two ring segments; each having a groove formed on an inner surface that matches the profile of the upper flange and the lower flange. The first end of one of the ring segments is connected to the second end of another one of the ring segments in a way that the clamp ring is operable between a non-tightened condition wherein the casing head is rotatable relative to the landing mandrel and a tightened condition to fix the casing head to the landing mandrel.