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. 30, 1980
Filed:
Nov. 20, 1978
Maurice K LeBegue, Argillite, KY (US);
National Mine Service Company, Pittsburgh, PA (US);
Abstract
A cutter drum member of a continuous mining machine is rotatably mounted on the front end of the machine. The drum member includes an intermediate section and a pair of canted end sections. Cutting elements extend from the surface of the respective drum sections and provide a continuous cutting pattern along the entire length of the drum member. Input drive shafts extend through rear openings between the adjacent ends of the intermediate section and the end sections. Rotation is transmitted from the input drive shafts through meshing bevel gears and planetary gears to rotate the intermediate section. The adjacent ends of the intermediate section and end sections include meshing gear teeth secured to the external surface of the sections so that the canted end sections are driven by the external meshing gear teeth. Passageways formed between the gear teeth on the external cylindrical surfaces of the drum sections facilitate the flow of dislodged material between the gear teeth to prevent material from accumulating between the teeth and thereby ensure positive drive to the canted end sections.