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:
Apr. 03, 1990
Filed:
Jul. 19, 1988
Applicant:
Inventors:
Derek J Bunting, Sapcote, GB;
Alexander B Graham, Hinckley, GB;
Assignee:
Sandvik AB, Sandviken, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B28D / ;
U.S. Cl.
CPC ...
125 43 ; 125 40 ;
Abstract
A mineral cutter pick and its pick box are secured together through a spigot and socket connection. Opposed end faces of the pick and holding device that surround the connection have laterally oppositely inclined surfaces at opposite sides of a central plane of the pick extending in the direction of cutting movement. These complementary inclined faces improve the load distribution between the pick and its locking device in use and can also be arranged to restrict the entry of foreign matter into the spigot and socket connection.