Corrugated pipe

Details Corrugated pipe Corrugated pipe

2005-09-13

2005-09-13

Hook, James (Department: 3754)

Pipes and tubular conduits

With pressure compensators

C138S115000, C138S120000, C138S121000, C138S177000

Reexamination Certificate

active

06941972

ABSTRACT:
A corrugation has a radially inner wall circumferentially surrounding an axis. The inner wall defines an inner cavity configured to conduct a liquid axially through the inner cavity. A radially outer wall of the corrugation overlies the inner wall. The outer wall adjoins the inner wall so as to form a closed outer cavity bounded by the inner and outer walls and separated from the inner cavity by the inner wall. The inner wall has at least one opening providing fluid communication between the inner and outer cavities for the corrugation to serve as a reservoir for the liquid.

REFERENCES:
patent: 1055674 (1913-03-01), Smith
patent: 3625242 (1971-12-01), Ostwald
patent: 3699684 (1972-10-01), Sixt
patent: 3958425 (1976-05-01), Maroschak
patent: 4163474 (1979-08-01), MacDonald et al.
patent: 4182580 (1980-01-01), Hieda et al.
patent: 4188154 (1980-02-01), Izatt
patent: 4950103 (1990-08-01), Justice
patent: 5603358 (1997-02-01), Lepoutre
patent: 5810509 (1998-09-01), Nahlik, Jr.
patent: 5921711 (1999-07-01), Sipaila
patent: 5954451 (1999-09-01), Presby
patent: 5992469 (1999-11-01), Hegler
patent: 5996635 (1999-12-01), Hegler
patent: 6199592 (2001-03-01), Siferd et al.
patent: 6343623 (2002-02-01), Hegler
patent: 6399002 (2002-06-01), Lupke et al.
patent: 6461078 (2002-10-01), Presby
patent: 2133681 (1973-01-01), None
patent: 3842298 (1990-06-01), None
patent: 0890770 (1999-01-01), None
Two sheets comprising a web-page at http://poweronline.com/content/productshowcase/product.asp, Nov. 2001.
European Search Report dated Aug. 16, 2004 for the corresponding European patent application (4 pp.) EP 03016901.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3370988