Double pipe

Details Double pipe Double pipe

2006-07-18

2006-07-18

Brinson, Patrick (Department: 3754)

Pipes and tubular conduits

Combined

With means to support disparate element therein

C138S114000, C138S111000, C285S123300

Reexamination Certificate

active

07077165

ABSTRACT:
A double pipe has an outer pipe and an inner pipe that is formed in a spiral or wavy configuration and is held by an inner circumferential face of the outer pipe.

REFERENCES:
patent: 2259433 (1941-10-01), Kitto
patent: 3163707 (1964-12-01), Darling
patent: 3227800 (1966-01-01), Bondon
patent: 3250420 (1966-05-01), Kohn
patent: 3750058 (1973-07-01), Bankert et al.
patent: 4194560 (1980-03-01), Matsuzaki
patent: 4199955 (1980-04-01), Jonsson
patent: 4320754 (1982-03-01), Watson et al.
patent: 4336798 (1982-06-01), Beran
patent: 4838258 (1989-06-01), Dryden et al.
patent: 6009908 (2000-01-01), Hartnagel et al.
patent: 6131615 (2000-10-01), Hartnagel et al.
patent: 6145545 (2000-11-01), Hartnagel et al.
patent: 6323420 (2001-11-01), Head
patent: 144 701 (1903-11-01), None
patent: 2 320 125 (1974-10-01), None
patent: 2 311 688 (1974-12-01), None
patent: 2001-341027 (2001-12-01), None
patent: 2002-228072 (2002-08-01), None
patent: WO 01/02767 (2001-01-01), None

Affiliated with

Also associated with

Rating

Double pipe does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Double pipe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Double pipe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3565312