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:
Nov. 12, 1991
Filed:
Jun. 28, 1990
Arvo Jonkka, Pori, FI;
Rauma-Repola Oy, Pori, FI;
Abstract
Method and means of conveyance for solid material, f.ex. tree trunks (6) or bark, whereby the solid material is conveyed with parallel, oblong transfer elements (4) moving back and forth in transfer direction. A larger part of the surface of the transfer elements (4) is moving forward at a time than moving backward. The speed of the return motion of the transfer elements is higher than that of the feed motion of the transfer elements. Transfer elements (4) at sides of the conveyor have been inclined on their longitudinal axis so that they slope towards the center of the conveyor. In this way the friction force between the particles (6) of the material to be conveyed is increased and the friction force between the material (6) to be conveyed and the transfer elements (4) is decreased.