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. 17, 1980
Filed:
May. 09, 1978
Applicant:
Inventor:
Nils G Jonsson, Taby, SE;
Assignee:
Atlas Copco Aktiebolag, Nacka, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23Q / ; E21C / ; F15B / ; F15B / ;
U.S. Cl.
CPC ...
91508 ; 91533 ; 92137 ; 92151 ; 173 31 ; 173147 ;
Abstract
A feed beam for a rock drill comprises a box girder (13), a saddle (10) slidable along the box girder, and two power units (20,20a) inserted into the ends of the box girder. Each power unit comprises a pair of fixed pulleys (22,24) located outside the end of the box girder, an hydraulic jack (26) carrying a pair of movable pulleys (28,30) within the box girder, and a cable coupled between the power unit and the saddle and passing over the four pulleys.
Quick Actions:
Jonsson, Nils. (1980). Feed beam (U.S. Patent No. 4207805). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4207805
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile