Exhaust pipe joint with insert
AssigneeTru-Flex Metal Hose Corporation
InventorScott Swank
Life of this patent
Estimating the term…
Abstract
A connection assembly for pipes is provided. The assembly includes a pipe, a corrugated conduit, a circumferentially expandable and contractable seal positioned between portions of the conduit and the pipe and a clamp encircling the conduit, seal and pipe. The seal is circumferentially contractible to secure the conduit and the pipe together with the seal serving to effect a gas-tight seal while filling the annular gap between the conduit and pipe. Additional embodiments provide flared sleeves on the corrugated conduit and stops for limiting movement of the components.
Claims32
A pipe assembly comprising:
- a pipe;
- a corrugated conduit section for connection with said pipe at a joint;
- a circumferentially contractable seal element positioned at said joint between said pipe and said conduit section, said seal element having free ends movable relative to one another;
- and
- a clamp adapted to encircle said joint and to be tightened to connect said pipe and conduit section and compress said seal element therebetween in a manner to effect a seal at said joint.
An exhaust pipe assembly for vehicular exhaust, comprising:
- a pipe;
- first and second corrugated conduit sections having corrugations interfitting in a manner to effect a seal between corrugations on the conduit sections that mate while allowing relative rotation of said conduit sections, said pipe and first conduit section interfitting at a joint;
- a circumferentially contractable seal element at said joint positioned between said pipe and said first conduit section, said seal element having free end portions movable relative to one another;
- and
- a clamp applicable to said joint in a manner to connect said pipe and said first conduit section while compressing said seal element therebetween to effect a seal at said joint.
In an exhaust system for vehicular exhaust which includes a pipe and first and second corrugated conduit sections having corrugations that interfit in a manner to accommodate relative rotation of the conduit sections, the improvement comprising:
- a circumferentially contractable seal element positioned between mating end portions of said pipe and said first conduit section, said seal element having free end portions movable relative to one another;
- and
- a clamp adapted to encircle said mating and portions and to be tightened to compress said seal element therebetween, thereby effecting a connection between said pipe and said first conduit section with said seal element providing a seal between said mating end portions.
An exhaust pipe assembly for vehicular exhaust, comprising:
- a pipe;
- a corrugated conduit having a neck interfitting with said pipe at a joint;
- a circumferentially contractable seal element at said joint positioned between said pipe and said conduit;
- a clamp applicable to said joint in a manner to connect said pipe and said conduit while compressing said seal element therebetween to effect a seal at said joint;
- and
- at least one projection on the inside of said seal element limiting the extent of overlap between said pipe and said conduit at said joint.
An exhaust pipe assembly as set forth in claim 22, including a second projection on the inside of said seal element at a location substantially diametrically opposed to said one projection.
An exhaust pipe assembly for vehicular exhaust, comprising:
- a pipe;
- a corrugated conduit having a neck interfitting with said pipe at a joint;
- a circumferentially contractable seal element at said joint positioned between said pipe and said conduit;
- a clamp applicable to said joint in a manner to connect said pipe and said conduit while compressing said seal element therebetween to effect a seal at said joint;
- and
- a protrusion on the outside of said neck engageable with said clamp to limit movement of said clamp toward said corrugations.
An exhaust pipe assembly for vehicular exhaust, comprising:
- a pipe;
- a flexible conduit for connection to said pipe at a joint adjacent to one end of said conduit;
- a sleeve secured to said one end of said conduit and constructed in a manner to be compressible circumferentially, said pipe fitting inside of said sleeve;
- and
- a clamp applicable to said sleeve at said joint in a manner to compress said sleeve onto said pipe to effect a seal at said joint.
Dependencies are inferred from the claim text.