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:
Oct. 24, 2000
Filed:
Sep. 15, 1998
John Kraus, Akron, OH (US);
Carlisle Engineered Products, Chardom, OH (US);
Abstract
An inventive air duct includes a blow molded tubular body of a first material having at least one annular open end, the open end terminating at a radially outwardly extending lip. A cuff of a second material is molded to the main body such that at least a portion of the lip is embedded within the cuff. Before molding the cuff, a portion of the main body adjacent the open end is pre-formed to remove any seams created during blow molding and to provide improved dimensional stability. Thus, leak pathways are minimized. The improved dimensional stability in combination with the use of an outwardly extending lip, a portion of which is embedded within the cuff, helps promote a strong seal between the cuff and the main body.