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. 01, 1992
Filed:
Jan. 21, 1992
Applicant:
Inventors:
Assignee:
Fosroc International Limited, Birmingham, GB;
Primary Examiner:
Int. Cl.
CPC ...
E21D / ;
U.S. Cl.
CPC ...
2483542 ; 405289 ;
Abstract
A support between the floor (22) and the roof (24) of e.g. a mine stope, is made by using an inflatable container comprising an inner bag (10), received in an outer bag (12). An inlet valve (14) extends through both bags as does a relatively higher pressure relief outlet valve (16). In use, air is pumped into the container until it is fully inflated, following by a grout, the air escaping via the valve (16) until the inner bag (10) is filled.
Wood, Richard. (1992). Load support (U.S. Patent No. 5143340). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5143340
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile