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:
Mar. 17, 1981
Filed:
Nov. 15, 1979
Karl-Heinz Schwarting, Voerde, DE;
Roland Guenther, Wesel, DE;
Abstract
A chain conveyor section of a longwall conveying device for underground mining of a longwall using a winning machine riding on the conveying device comprising a trough member defining a trough adapted to receive a scraper chain therein the trough member having one flanged side wall and one unflanged side wall positionable next to the longwall, a main rack section connected to the unflanged side wall extending over the trough and toward the flanged side wall for holding one end of the scraper in the trough, and an intermediate rack segment pivotally connected to the main rack segment for interconnecting at least the unflanged side wall sides of adjacent chain conveyor sections of the conveying device.