Pipes and tubular conduits – Flexible – Corrugated
Patent
1998-08-07
2000-02-15
Hook, James F.
Pipes and tubular conduits
Flexible
Corrugated
138129, 138138, 138143, 138144, 138154, 138DIG11, 156194, F16L 1111, B65H 8104
Patent
active
060241314
ABSTRACT:
A method of forming a flexible spiral-wound tube includes the steps of spiral wrapping at least two webs of material in an overlapping relationship about a mandrel to form a multi-ply tube and advancing the tube along the mandrel and off a reduced diameter portion of the mandrel at a forward end of the mandrel. Advancement of the tube along the mandrel includes rotating the tube as the tube longitudinally moves such that the tube advances in a spiral manner. The method further includes the step of retarding movement of the tube along the reduced diameter portion of the mandrel by providing frictional resistance between the tube and the mandrel to form folds or pleats in the tube so that the tube becomes extremely flexible. The flexible spiral-wound tube has a uniform pattern of generally diamond-shaped folds therein.
REFERENCES:
patent: 1670162 (1928-05-01), Neidich
patent: 2663321 (1953-12-01), Jantsch
patent: 2679887 (1954-06-01), Doyle
patent: 2819488 (1958-01-01), Gimbel
patent: 3716733 (1973-02-01), Keith et al.
patent: 3783908 (1974-01-01), Stump et al.
patent: 4125130 (1978-11-01), Yamamoto
patent: 4284455 (1981-08-01), Morin
patent: 4294638 (1981-10-01), Rasmussen
patent: 4802511 (1989-02-01), Hensley
patent: 5019012 (1991-05-01), Townsend et al.
patent: 5228479 (1993-07-01), Thomas
Clevaflex, Ltd., "Convoluted Multi-Ply Shielding", Jan. 1997, 6pgs. Sept. 1999.
Lester Michael E.
Schmitt Steven P.
Electrolock, Inc.
Hook James F.
LandOfFree
Flexible tubing does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flexible tubing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flexible tubing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1898065