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:
Mar. 22, 2022
Filed:
Feb. 01, 2019
Oil States Energy Services, L.l.c., Houston, TX (US);
Bob McGuire, Meridian, OK (US);
Oil States Energy Services, L.L.C., Houston, TX (US);
Abstract
An improved mandrel head for use with a wellhead isolation tool for protecting a wellhead. In an exemplary embodiment, the wellhead isolation tool includes a lock assembly with a mandrel head with a longitudinally extending annular sleeve. The inner surface of the mandrel head is connected to the mandrel and adapted to sealingly engage the mandrel. The outer surface of the mandrel head also sealingly engages with a seal pack within the wellhead isolation tool, and the mandrel head is configured such that the point of the connection between the mandrel and mandrel head is axially located below the engagement with the seal pack.