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. 15, 1985
Filed:
Dec. 29, 1982
Applicant:
Inventors:
Matyas Martinko, Varpalota, HU;
Andras Elekes, Budapest, HU;
Kalman Simon, Budapest, HU;
Jozef Bohnert, Budapest, HU;
Janos Nemeth, Budapest, HU;
Karoly Bole, Varpalota, HU;
Zoltan Ilyes, Budapest, HU;
Assignees:
Kozponti Banyaszati Fejlesztesi Intezet, Budapest, HU;
Varpalotai Szenbenyak, Varpalota, HU;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21D / ;
U.S. Cl.
CPC ...
405291 ; 405296 ;
Abstract
A mine excavator especially for heavy coal beds comprises a base on which the power loader and conveyor are provided and on which the roof support or shield is pivotally mounted. According to the invention, a back member connected to the roof plate and spaced above the base has a downwardly and forwardly swingable door which deposits caved material onto the conveyor at a forward portion of the main base.