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:
May. 24, 2005
Filed:
May. 15, 2003
Denis P. Biglin, Jr., Glastonbury, CT (US);
Daniel E. Burgess, Portland, CT (US);
Carl Allison Perry, Middletown, CT (US);
Thomas Floyd Rzasa, Rocky Hill, CT (US);
Ronald E. Seppa, Marlborough, CT (US);
William E. Turner, Durham, CT (US);
Denis P. Biglin, Jr., Glastonbury, CT (US);
Daniel E. Burgess, Portland, CT (US);
Carl Allison Perry, Middletown, CT (US);
Thomas Floyd Rzasa, Rocky Hill, CT (US);
Ronald E. Seppa, Marlborough, CT (US);
William E. Turner, Durham, CT (US);
PS Technology, Inc., Cromwell, CT (US);
Abstract
A latching system for maintaining the position of a component within a downhole drill string section during operation of a drill string. One preferred latching system embodiment has a shoe member including a cavity for receiving a component, a chamber opening into the shoe member cavity, an engagement member movable in the chamber between a retracted position and an engagement position, a first passage in fluid communication with the chamber and extending to an end surface of the shoe member, and a second passage extending from an outer side surface of the shoe member to the first passage. A pressure differential between pressure in the first passage and pressure in the second passage alters the position of the engagement member.