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. 28, 1995
Filed:
Nov. 22, 1994
Applicant:
Inventor:
Peter Schmidt, Waldkraiburg, DE;
Assignee:
Gummiwerk Kraiburg Development GmbH, Waldkraiburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E01C / ;
U.S. Cl.
CPC ...
404 32 ; 156245 ; 238-8 ; 264241 ;
Abstract
Assemblies of resilient moldings are used as track crossings. A molding has a rubber surface layer which is bonded to a body formed from scrap rubber. In forming the molding, granular vulcanized rubber is mixed with a binder including crude rubber and a vulcanizing agent. The mixture is placed in a mold together with a crude rubber layer which also includes a vulcanizing agent. The molding is formed upon vulcanizing under heat and pressure.