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. 18, 1983
Filed:
Apr. 23, 1981
Manfred Nussbaumer, Leonberg-Ezach, DE;
Ed. Zublin Aktiengesellschaft, Stuttgart, DE;
Abstract
A driving shield having a shield shell and a transverse wall for defining a work chamber, and a removal arm pivotally journalled on the transverse wall. The removal arm has a removal tool for mining or removing a face wall which also delimits the work chamber. A pressure medium supply is provided for attaining a support pressure in the work chamber. Material worked away from the face wall is removed by a discharge conduit arranged essentially along the bottom of the shield shell. The work or material-removing arm is journalled on the transverse wall in the pneumatic pressure duct, and the pressure medium supply is embodied as a pneumatic conduit. A sealing medium application device is movably coupled with the work arm, and the delivery nozzle of the device is directed upon the immediate surroundings at the free end of the removal tool.