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. 22, 1981
Filed:
Apr. 16, 1979
Henry P Barthe, Pittsburgh, PA (US);
William R Cobb, Murrysville, PA (US);
Schroeder Brothers Corporation, McKees Rocks, PA (US);
Abstract
A roof drilling and bolting device comprising a mobile chassis and two cabs mounted to the front of the chassis for independent transverse (outward to the side) movement. The cabs have floors and protective canopies. Extensible hydraulic devices position the cabs outwardly of the chassis. Other extensible hydraulic devices raise and lower the cabs relative to the chassis. Mounted to the front of each cab is a drilling assembly including a rectilinear positioning device for drill pods which provides up-down and side-to-side movement of the drill pod in front of the cab. An extensible standard is positioned by a boom which extends forward of the chassis to provide a temporary roof support.