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. 27, 2006
Filed:
Aug. 16, 2005
Applicants:
Alexander I. Wallstein, Laguna Beach, CA (US);
Richard Pope, Kahibah, AU;
Inventors:
Alexander I. Wallstein, Laguna Beach, CA (US);
Richard Pope, Kahibah, AU;
Assignee:
Dywidag-Systems International USA, Bolingbrook, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21D 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A twin cable mine roof bolt includes a barrel having a first end, a generally dome-shaped second end, and an outer surface, a pair of angled and narrowing bores extending through the barrel, with each bore sized to receive a cable, a pair of wedges sized for placement in each of the bores to secure the cables, and a protrusion extending from the first end of the barrel and sized for insertion into a socket wrench.