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.

Date of Patent:
Jun. 12, 2007

Filed:

Nov. 05, 2002
Applicant:

Paul David Howlett, Aberdeen, GB;

Inventor:

Paul David Howlett, Aberdeen, GB;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 23/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A safety trip button () is described for a weight-set downhole tool. The button operates between the tool body () and a sleeve () of the tool, locking them initially together. When the tool reaches a selected formation () in a well bore, the button engages the formation () which unlocks the body and sleeve. The button is kept in the unlocked position by virtue of the formation while the tool is set. The button prevents premature setting of the tool and finds application on weight set tools such as packers and circulation tools.


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Howlett, Paul. (2007). Safety mechanism for weight-set downhole tool (U.S. Patent No. 7228910). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7228910

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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