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, 1978
Filed:
Mar. 03, 1977
Applicant:
Inventors:
Wayne M Wagner, Apple Valley, MN (US);
John A Campbell, Minneapolis, MN (US);
Assignee:
Donaldson Company, Inc., Minneapolis, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
285322 ; 285382 ; 285420 ;
Abstract
An improved exhaust conduit lap joint construction is disclosed, wherein the outer tube includes an end portion having therein a plurality of captured take-up slots and a plurality of relief slots which extend through the end of the tube. An inner tube extends telescopically into the outer tube end portion so as to cover the slots from the inside. Clamping means, including means encircling the outer tube and covering the captured take-up slots, hold the two tubes together, whereby a leak proof lap joint is formed.