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:
Jun. 13, 2000
Filed:
Feb. 06, 1998
Applicant:
Inventors:
John C Stankus, Canonsburg, PA (US);
Kendal L Taylor, Masontown, WV (US);
Assignee:
Jennmar Corporation, Pittsburgh, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
E21D / ;
U.S. Cl.
CPC ...
4052596 ; 4052591 ; 4053022 ; 411-8 ; 411 82 ;
Abstract
A tensionable mine roof cable bolt having a resin grouted upper portion and a mechanically anchored lower portion. The lower portion includes a shaft which is swaged to the cable and accepts a mechanical anchor. The cable bolt is rotated during installation in a mine roof bore hole to mix resin and simultaneously engage the mechanical anchor with the rock. A drivehead press fitted onto the lower end of the cable fails upon tensioning of the bolt to a predetermined load.