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. 29, 1987
Filed:
Jan. 14, 1986
Applicant:
Inventors:
Alfred Zitz, Zeltweg, AT;
Wilfried Maier, Zeltweg, AT;
Assignee:
Voest-Alpine Aktiengesellschaft, Linz, AT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21C / ; E21B / ;
U.S. Cl.
CPC ...
299 75 ; 299 81 ;
Abstract
In a cutting machine (1) comprising cutting heads (5) rotatably supported on a universally swivellable cutting arm (2) and having arranged therein a gearing stage (7), supply of water is effected via the outer front disc (8) of the cutting head and the water flows via passages provided within the interior of the main body (15) of the cutting head to nozzles provided at the circumference thereof. The water supply flows via an essentially axial bore (12) into a cavity of the main body (15) of the cutting head and is passed from this cavity via passages (21, 22, 23) to the nozzles (FIGS. 1,2).