Method of manufacturing piping having joining portion

Details Method of manufacturing piping having joining portion Method of manufacturing piping having joining portion

2005-08-16

2005-08-16

Jimenez, Marc (Department: 3726)

Metal working

Method of mechanical manufacture

Gas and water specific plumbing component making

C029S890140, C029S509000, C029S523000

Reexamination Certificate

active

06928732

ABSTRACT:
An arbitrary position of a pipe is clamped and a connector is engaged with the pipe. Then, an end portion of the pipe is expanded with a tool such as a diameter expanding punch so as to caulk the pipe to the connector from inside. As a pipe fluctuation-absorbing portion, which is a relief space of pipe material, is provided in a portion of an inner face of the connector, when the diameter-expanding portion is formed, an excess pipe material is absorbed there and the length of the pipe is reduced and adjusted to an appropriate value. A portion in which the pipe fluctuation-absorbing portion is formed is not limited to a forward end portion of the pipe but it may be formed on an inner face of the connector corresponding to an intermediate portion.

REFERENCES:
patent: 4980961 (1991-01-01), Caudill
patent: 5090611 (1992-02-01), Takikawa et al.
patent: 6327771 (2001-12-01), Anglin et al.
patent: 199 56 463 (2000-05-01), None
patent: 0 791 776 (1997-08-01), None
patent: 2 258 232 (1975-08-01), None
patent: 7-269987 (1995-10-01), None
patent: 2000-343170 (2000-12-01), None
French Search Report dated Dec. 18, 2003 in corresponding French Application No. FR 0308874.

Affiliated with

Also associated with

Rating

Method of manufacturing piping having joining portion does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of manufacturing piping having joining portion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing piping having joining portion will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3473879