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. 06, 1988
Filed:
Feb. 23, 1988
Dieter Nowak, Herne, DE;
Klockner-Becorit GmbH, Castrop-Rauxel, DE;
Abstract
A coal shaver includes an elongated carriage body that can be pulled by a link chain back and forth in parallel with the side wall of a coal deposit and two shaver devices respectively mounted on the elongated carriage body near its opposite ends. Each shaver device includes a first cutter member which includes a first elongated cutter strip of vertically spaced apart shearing blades that extend inwardly of the coal shaver, i.e., toward the first elongated cutter strip of the other shaver device, and towards the side wall of the coal deposit, and a second cutter member which is pivotally connected to the first cutter member so as to pivot about a horizontal axis, the second cutter member including a second elongated cutter strip which faces outwardly of the coal shaver and towards the side wall of the coal deposit.