U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Process for fixing a transverse partition in a tubular header of a heat exchanger

Patent 5450667 Issued on September 19, 1995. Estimated Expiration Date: Icon_subject June 20, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3909920

Heat exchanger and method of assembly thereof
Patent #: 4546825
Issued on: 10/15/1985
Inventor: Melnyk ,   et al.

Rod plug caps
Patent #: 5016674
Issued on: 05/21/1991
Inventor: Kiss

Method for joining heat exchanger tubes with headers
Patent #: 5067235
Issued on: 11/26/1991
Inventor: Kato, et al.

Removable fluid seal and method
Patent #: 5118079
Issued on: 06/02/1992
Inventor: Watts

Method of production of anchor-bonded composite structures
Patent #: 5121537
Issued on: 06/16/1992
Inventor: Matsui, et al.

Method of tube plugging
Patent #: 5207247
Issued on: 05/04/1993
Inventor: Hood

Condenser header and tank assembly with interference fit baffle
Patent #: 5209292
Issued on: 05/11/1993
Inventor: Arneson, et al.

Extruded tank pocket design for separator
Patent #: 5226490
Issued on: 07/13/1993
Inventor: Ryan, et al.

Method of making a heat exchanger having a tubular manifold with transverse baffles Patent #: 5233756
Issued on: 08/10/1993
Inventor: le Gauyer

Inventor

Application

No. 261774 filed on 06/20/1994

US Classes:

29/890.052, Header or manifold making29/521, Surface interlocking29/522.1, Radially expanding part in cavity, aperture, or hollow body29/890.043, Tube joint and tube plate structure165/176Side by side

Examiners

Primary: Cuda, Irene
Assistant: Butler, Marc W.

Attorney, Agent or Firm

Foreign Patent References

  • 0521489 EP. 07/13/1993
  • 2676535 FR. 05/13/1991

International Class

B29D 039/00

Abstract

In a process for producing a heat exchanger comprising at least one header having a tubular wall is separated into compartments by a substantially disc-shaped transverse partition. The partition is introduced into the tubular wall through an open end of the wall to bring it into the position it has to occupy. Then, the partition is deformed by means of punches comprising annular ribs applied against the two faces thereof by expanding it radially so as to immobilize into position by clamping within the tubular wall. The invention is particularly applicable to condensers for air conditioning units of motor vehicles.

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