Pipe joints or couplings – Having plural independent paths – Parallel paths
Reexamination Certificate
2006-12-26
2006-12-26
Bochna, David (Department: 3679)
Pipe joints or couplings
Having plural independent paths
Parallel paths
C285S131100, C029S890140
Reexamination Certificate
active
07152885
ABSTRACT:
A connection structure of a multi-channel tube with branching tubes is provided with a multi-channel tube having an end, the multi-channel tube including; an outer tube; a partition being formed in a unitary body and running parallel with the outer tube, the partition partitioning an interior of the outer tube into two or more channel holes; and a passage formed at an end of the partition, the passage linking the channel holes; two or more branching tubes respectively inserted into the channel holes to an insertion depth greater than a depth of the passage measured from the end of the multi-channel tube; and brazing material spreading beyond the passage over clearances between the multi-channel tube and the branching tubes and connecting the multi-channel tube and the branching tubes.
REFERENCES:
patent: 1984242 (1934-12-01), Trainer et al.
patent: 5150926 (1992-09-01), Egli
patent: 5372388 (1994-12-01), Gargiulo
patent: 6027146 (2000-02-01), Kurimoto
patent: 64-6465 (1989-02-01), None
patent: 10-009716 (1998-01-01), None
U.S. Appl. No. 11/019,663, filed Dec. 23, 2004, Takamatsu et al.
Satou Susumu
Takamatsu Yoshikazu
Takasaki Hiromi
Bochna David
Calsonic Kansei Corporation
Foley & Lardner LLP
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