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. 17, 2016
Filed:
Oct. 28, 2015
Applicant:
David L Sipos, Youngsville, LA (US);
Inventor:
David L Sipos, Youngsville, LA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 19/06 (2006.01);
U.S. Cl.
CPC ...
E21B 19/06 (2013.01);
Abstract
A self-balancing, shoulder type elevator is comprised of two opposing jaws pivotally connected to a hinge plate. The jaws are engaged for rotation at the hinge plate by corresponding sets of gear teeth. Hangers on the jaws attach the elevator to suspending bails. An offset alignment linkage pivotally attaches each jaw to the hinge plate and a rotatable spindles pivotally attached perpendicular to the jaws. The alignment linkage maintains the spindles angularly congruent in orientation with the bails when the opposing jaws are pivoted open and closed.