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:
Aug. 21, 2018

Filed:

Apr. 10, 2015
Applicant:

David L Sipos, Youngsville, LA (US);

Inventor:

David L Sipos, Youngsville, LA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 19/10 (2006.01); E21B 19/08 (2006.01);
U.S. Cl.
CPC ...
E21B 19/10 (2013.01); E21B 19/08 (2013.01);
Abstract

A pipe gripping apparatus is disclosed having a plurality slips slidably mounted on corresponding slip support surfaces disposed radially the vertical axis of a central opening. The slip support surfaces include an upper region having a radially outwardly curved surface and a lower region having a flat inwardly tapered surface with respect to the vertical axis of the central opening. Powered actuators and a timing ring pivotally linked to the slips move the slips towards and away from each other along their corresponding slip support surfaces to engage and release a pipe. Move of the slips fully upward and outward along outwardly curved slip support surfaces will substantially remove the slips from the central opening to prevent obstruction of the central opening by the slips.


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