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. 01, 1985
Filed:
Aug. 10, 1984
Gerhard Gnadig, Ditzingen, DE;
Siegfried Kuklinski, Stuttgart, DE;
Werner & Pfleiderer, Stuttgart, DE;
Abstract
A wear-protected workpiece of metal, particularly a perforated granulation plate for plastic extruders, comprising shaped members of wear-resistant material inserted in recesses in the work surface of the workpiece, the spaces between the walls of the recesses and the shaped pieces being filled with a binder. In order to minimize the expenses of manufacture and repair of the wear-protected workpiece and make it possible to use non-metallic wear-resistant material for the insert member, the recesses and the shaped members have walls which widen at least in two opposed regions, the largest dimension of the widened wall of the shaped member being equal to or smaller than the dimension of the opening of the corresponding recess so that the insert member is freely inserted into the recess and forms a space therewith in which a binder can be filled to form a locking means for the insert member in the workpiece.