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:
Oct. 10, 2017
Filed:
Jul. 09, 2015
Christopher A. Branton, Benton, LA (US);
Christopher A. Branton, Benton, LA (US);
Other;
Abstract
Bridge plug or packer assemblies include a mandrel, at least one sealing element provided on the mandrel and a pair of backup rings provided on the mandrel on respective sides of the at least one sealing element. Each of the pair of backup rings including an annular backup ring body having a ring opening receiving the mandrel, a ring opening edge encircling and facing the ring opening, an engaging ring surface, an outer ring surface extending from the engaging ring surface to the ring opening edge, an inner ring surface extending from the engaging ring surface to the ring opening edge opposite the outer ring surface and a single spiraled ring groove in the backup ring body. A mandrel cap may be provided on the mandrel in engaging relationship to a second one of the pair of backup rings. A first shear-able ring retainer pin may couple the backup ring body of the first one of the pair of backup rings to the gauge ring. A second shear-able ring retainer pin may couple the backup ring body of the second one of the pair of backup rings to the mandrel cap.