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:
Nov. 11, 1997
Filed:
Dec. 21, 1995
Steven S Gieseke, Richfield, MN (US);
Thomas A Boeckermann, Lakeville, MN (US);
Larry R Nepsund, Savage, MN (US);
Donaldson Company, Inc., Minneapolis, MN (US);
Abstract
Air conduit construction is provided. The construction generally comprises a conduit section having an open end; and, a support member positioned inside of the conduit section open end. In preferred arrangements, the conduit construction has two open ends, with a reinforcing member in each of the open ends. In preferred arrangements, the reinforcing member includes a friction fit construction on an outer surface thereof. In typical and preferred embodiments, the friction fit construction includes a bead on the reinforcing member. A method of preparing air conduit constructions is also provided.