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:
Oct. 31, 2000
Filed:
Nov. 10, 1998
Applicant:
Inventor:
George Albert Parrott, Barnsley, GB;
Assignees:
Minnovation Limited, , GB;
Kennametal, Inc., Latrobe, PA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21C / ;
U.S. Cl.
CPC ...
299 811 ; 299 812 ; 299 813 ;
Abstract
A continuous type mining machine which includes a pair of articulated support arms extending forwardly from a self-propelled chassis and rotatably carrying a transverse drive shaft divided into two half-shafts, on which a central drum between the two arms, and an end drum beyond each arm, are mounted, the drums being provided externally with a plurality of replaceable mineral cutter picks, and with a plurality of water spray nozzles, and also having a water supply network to the nozzles. The machine includes a third support arm, which incorporates a water supply, located between the pair of articulated support arms.