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:
Oct. 29, 2019
Filed:
Oct. 05, 2017
Applicant:
Esco Corporation, Portland, OR (US);
Inventors:
Mark Alexander Cheyne, Gresham, OR (US);
Jack Charles Rickey, Vancouver, WA (US);
Assignee:
ESCO GROUP LLC, Portland, OR (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21C 35/18 (2006.01); E21C 35/19 (2006.01);
U.S. Cl.
CPC ...
E21C 35/19 (2013.01); E21C 35/18 (2013.01); E21C 2035/1826 (2013.01);
Abstract
A pick for mineral winning includes an elongate shank configured to be positioned into a cavity of a holder. A profile is defined on an outside surface of the shaft which includes a first surface formed into the profile and disposed to receive a leveraging device to enable a first forced translational movement of the shaft relative to the holder, and a second surface formed into the profile and disposed to receive the leveraging device to enable a second forced translational movement of the shaft relative to the holder.