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.

Date of Patent:
Jul. 17, 2012

Filed:

Mar. 30, 2010
Applicants:

Dominick G. More, Middletown, CT (US);

Jeremy M. Payne, New Haven, CT (US);

Kenneth W. Cornett, Ivoryton, CT (US);

Paul A. Dudzinski, East Berlin, CT (US);

Inventors:

Dominick G. More, Middletown, CT (US);

Jeremy M. Payne, New Haven, CT (US);

Kenneth W. Cornett, Ivoryton, CT (US);

Paul A. Dudzinski, East Berlin, CT (US);

Assignee:

Parker-Hannifin Corporation, Cleveland, OH (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 25/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An engine exhaust system comprises duct pieces and a thermally expandable sealing joint for interconnecting their adjoining ends. The sealing joint comprises a tubular body including a first axial end portion, a second axial end portion, and a bridge portion extending therebetween. The first end portion is at least partially positioned within a female recess of the first duct piece and the second end portion is at least partially positioned with a female recess of the second duct piece. The bridge portion can extend across a gap and/or it can be positioned partially within female recesses. Upon thermal activation, the sealing joint radially expands permanently to engage the inner radial surfaces of the duct pieces.


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