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:
Aug. 21, 1990
Filed:
Apr. 20, 1989
Applicant:
Inventors:
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264103 ; 15624413 ; 264166 ; 264173 ; 264236 ; 264347 ;
Abstract
A process is disclosed for producing a composite hose constructed with a core tube, a reinforcement layer and a cover laminated one on another, the core being made up of a resin inner wall and a rubber outer wall. Gas impermeability and flexibility are enhanced by formation of the inner wall on a mandrel of selected synthetic material and specified bending strength.