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:
Sep. 11, 1990
Filed:
Jul. 30, 1987
Applicant:
Inventor:
Leo J Hyde, New South Wales, AU;
Assignee:
Du Pont (Australia) Ltd., New South Wales, AU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21D / ;
U.S. Cl.
CPC ...
405261 ; 405259 ; 411-5 ; 411-8 ;
Abstract
A tensionable dowel for reinforcing walls and/or roofs in excavations such as mines and tunnels is described. The dowel is particularly useful in coal mines where mine walls or roofs are subject to failure. The dowel is fabricated in fibre reinforced engineering plastic and is used with a threaded nut for tensioning the dowel in the wall or roof. Also described is a process for manufacturing the dowel as well as a method for reinforcing walls and/or roofs by inserting the dowels therein.
Hyde, Leo. (1990). Reinforcing method and means (U.S. Patent No. 4955758). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4955758
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile