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:
Jul. 18, 1978
Filed:
Nov. 23, 1973
Applicant:
Inventors:
Clifford R Stine, Solon, OH (US);
Jennings A Boyce, Ravenna, OH (US);
Assignee:
Samuel Moore & Company, Mantua, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29F / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
428 36 ; 138141 ; 138177 ; 138D / ; 264 22 ; 264 25 ; 264173 ; 264230 ; 264D / ; 264D / ; 428212 ; 428517 ; 428521 ; 428523 ;
Abstract
A synthetic resinous tube having a plurality of bonded coaxial layers with at least one layer being thermoplastic and another substantially non-thermoplastic is formed by the simultaneous coaxial extrusion of thermoplastic tubes and electron irradiation of one of the layers of the tube to convert it from a thermoplastic resin.