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:
Apr. 04, 1978
Filed:
Jan. 15, 1976
Applicant:
Inventors:
Ralph C Raabe, Letts, IA (US);
Roger G Cleffman, Muscatine, IA (US);
Raymond G Stratton, Muscatine, IA (US);
Assignee:
Bandag Incorporated, Muscatine, IA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B31F / ;
U.S. Cl.
CPC ...
156153 ; 156159 ; 156258 ; 156304 ; 156502 ; 156517 ;
Abstract
A machine for splicing or joining the ends of two precured rubber tread strips each having a pattern of ribs and grooves in one surface thereof. The machine includes first and second tread-clamping assemblies each of which grip the opposite surfaces of one of the tread strips between two elements and further includes power means for moving one of the assemblies toward the other in order to tightly abut the ends of the tread strips while heat is applied to effect vulcanization of a bonding material which previously has been inserted between the ends.