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:
Jan. 13, 2009
Filed:
Jun. 23, 2006
Applicant:
Alois Scheunert, Recklinghausen, DE;
Inventor:
Alois Scheunert, Recklinghausen, DE;
Assignee:
DBT Bergbau-Service GmbH, Hamm, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21D 23/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The disclosure concerns a mining roof support frame including at least one hydraulic lifting ram which is mounted on a bridging member connecting two base skids of the main frame, and which by way of a pressure-generated force can be extended downward against a walking bar of the walking unit of the mining roof support frame located between the base skids. In accordance with the disclosure, the base skids lifting device is connected with the bridging member such that it can pivot. With walking unit ram pivot pins withdrawn only on one side, the base skids lifting device can be pivoted out of the way about opposing pivot pins.