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:
Sep. 12, 2000
Filed:
Apr. 28, 1999
Applicant:
Inventor:
Michio Yamamura, Kobe, JP;
Assignee:
Tigers Polymer Corporation, Toyonaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ; B29C / ;
U.S. Cl.
CPC ...
138118 ; 138121 ; 138173 ; 156245 ;
Abstract
An air intake duct comprising a main body with bellows which is made by blow molding soft resin and ring-like reinforcements made of hard resin. As the soft resin, a material which is capable of keeping a form of a tube by itself is adopted. The reinforcements are previously mounted on the internal surface of a blow molding die and unite with the bellows in the main body in blow molding.