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:
Jun. 06, 1989
Filed:
Dec. 30, 1987
Applicant:
Inventor:
Rolf Tschudin-Mahrer, Lausen, DE;
Assignee:
Irbit Research & Consulting AG, Fribourg, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428 71 ; 291161 ; 198835 ; 198842 ; 428 36 ; 428 76 ; 428188 ; 4283066 ; 4283084 ; 4283099 ; 4283186 ; 4283193 ; 428 365 ;
Abstract
The present invention relates to a transport roller consisting of elastic material with a rotation shaft of nonelastic material located in a central cavity. In order to optimize the functional properties such as degree of elasticity, resistance to wear and mechanical load-bearing capacity, the roller body (1), which consists of open-cell foam, is closed on its surface by a skin (2) of resilient material which forms an outer surface of the roller and anchors itself by engagement in the foam pores (7).