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:
May. 01, 1979
Filed:
Jun. 13, 1977
Applicant:
Inventors:
Ken Takahashi, Tokyo, JP;
Hajime Endo, Kushiro, JP;
Assignee:
Taiheiyo Engineering Incorporated, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21F / ; B61B / ;
U.S. Cl.
CPC ...
198321 ; 104165 ; 1041 / ; 104233 ; 187 12 ;
Abstract
An operator carriage intended to be used at a long-walled pit face in a coal or metal mine and comprising endlessly running members arranged at both ends of a conveyor and driven by a motor, an operation table suspendedly attached to the side of a spill plate of the conveyor and supported by running supports such as guide rollers which are engaged with guide rails attached to the same side of the spill plate, and a carrying mechanism arranged at the operation table so as to hold the endlessly running members.