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:
Mar. 17, 1981
Filed:
Apr. 16, 1979
Applicant:
Inventors:
Henry P Barthe, Pittsburgh, PA (US);
William R Cobb, Murrysville, PA (US);
Assignee:
Schroeder Brothers Corporation, McKees Rocks, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21C / ; E21D / ; E21D / ;
U.S. Cl.
CPC ...
173 23 ; 173 38 ; 173 52 ; 175219 ; 299 11 ;
Abstract
An operator cab and drilling assembly for a roof drilling and bolting device. The cab comprises a floor and a canopy having extensible hydraulic means for adjusting the distance between the cab floor and at least the front edge of the canopy. A horizontal rail extends along the entire length of the front edge of the floor and is spaced therefrom. A roof bolting and drilling apparatus slidably engages the horizontal rail. The rail is mounted by swinging arms to always be parallel to the cab floor.