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:
Feb. 05, 1980
Filed:
Apr. 11, 1978
Wolfgang Gebetsroither, Wolfsberg, AT;
Alfred Zitz, Zeltweg, AT;
Abstract
In a rock cutting machine which includes a cutter arm having an inner end and an outer end carrying a toothed cutter which rotates about an axis transverse to the longitudinal dimension of the arm, an improved cooling device for the cutting teeth of the cutter comprising a nozzle device for receiving supplies of compressed air and water and constructed to create and discharge a stream of air in which particles of liquid water are dispersed or atomized, the nozzle device being carried by the cutter arm at a location spaced from the cutter toward the inner end of the arm and arranged in a position to discharge the stream toward the cutter in a spray pattern such that the stream impinges on the teeth of the cutter as the teeth pass through the pattern during rotation of the cutter.