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:
Sep. 22, 2020
Filed:
Sep. 22, 2017
Nexen Group, Inc., Vadnais Heights, MN (US);
Justin William Hillukka, Otsego, MN (US);
Anthony Will Kliber, Andover, MN (US);
Nexen Group, Inc., Vadnais Heights, MN (US);
Abstract
An apparatus (B) controls rotation of an annular member () relative to top and bottom housings (). The bottom housing () includes a disk () extending radially and terminating in a cylindrical portion () having circumferentially spaced slits (). A wedge () abuts with the cylindrical portion () and is moved radially between first and second positions by an axially moveable piston (), with the wedge including an angle surface () which interfaces with an angled surface () of the piston () through a plurality of balls (). The disk () and the cylindrical portion () are formed as a single component of material having sufficient material strength and yield to allow engagement and disengagement of the cylindrical portion () with the annular member (). The wedge () is slideable between an axial surface () of the disk () and a guiding flange () of the top housing ().