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. 08, 2011
Filed:
Oct. 17, 2008
Applicants:
Randall W. Nish, Provo, UT (US);
Randy A. Jones, Park City, UT (US);
Inventors:
Randall W. Nish, Provo, UT (US);
Randy A. Jones, Park City, UT (US);
Assignee:
ITT Manufacturing Enterprises, Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 23/00 (2006.01); E21B 33/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A down hole flow control tool for use in a well bore, such as a bridge or frac plug, includes back-flow vent holes in a central mandrel and initially covered by a member on the mandrel, such as a lower slip or a lower cone. In a subsequent, set configuration, the member moves away from the vent hole allowing back flow of well fluids.