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:
Jan. 29, 2013
Filed:
May. 15, 2010
Allen Kent Rives, Cypress, TX (US);
Allen Kent Rives, Cypress, TX (US);
Other;
Abstract
An underreamer that can be assembled easily is formed from a tubular body having a flow tube running to a distal end delivering fluid which moves an actuator against the underreamer arms which are hinged to a moveable stop block and stopped to positively seat the arm at the end of a key slot to rigidly hold the underreamer arm in full extension during operations. Once hydraulic pressure is released, a spring moves the arm down the slot to a position where the arm can be removed from the slot in the underreamer body. A lower sub assembly is affixed to the underreamer body to prevent premature back off of the lower sub. Jets are disposed on either side of the underreamer to remove cuttings from the well bore. The tool is adaptable in the field for several hole sizes by adjustment in the length of the stop block and the angle of the flat on the top side of the key.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile