Exhaust pipe, and method of making an exhaust pipe

Details Exhaust pipe, and method of making an exhaust pipe Exhaust pipe, and method of making an exhaust pipe

2005-06-28

2005-06-28

Hook, James (Department: 3754)

Pipes and tubular conduits

Plural duct

Coaxial

C138S109000, C138S121000, C138S148000, C138S155000

Reexamination Certificate

active

06910506

ABSTRACT:
An exhaust pipe includes first and second length portions, each having an outer pipe and an inner pipe positioned relative to one another to define an annular gap therebetween. The length portions are placed in confronting disposition with their adjacent first ends interconnected for relative movement in a longitudinal direction. An end piece of the outer pipe of the first length portion is disposed in surrounding relationship to an end piece of the outer pipe of the second length portion at interposition of an end portion of the inner pipe of the first length portion, wherein the end pieces of the outer pipes of the first and second length portions and the end portion of the inner pipe of the first length portion are positioned for relative movement in the longitudinal direction, so as to define a triple sliding fit.

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