Asymmetrical convolute tube

Details Asymmetrical convolute tube Asymmetrical convolute tube

1997-05-01

2000-09-26

Hook, James F.

Pipes and tubular conduits

Flexible

Corrugated

138119, 138137, 138DIG11, F16L 1111

Patent

active

061231134

ABSTRACT:
A tube having a cylindrical main body and a thin wall defined by an inner surface and outer surface. The tube includes a first segment having a generally constant cylindrical cross-section and another segment having a variable cross-section containing convolutions to allow for flexing of the tube during installation. The convolutions extend less than the entire circumference of the tube or have tapered side walls which substantially reduce the size of the convolutions as the convolutions extend from one position along the circumference to a second position.

REFERENCES:
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patent: 2695038 (1954-11-01), Parce et al.
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patent: 5305799 (1994-04-01), Dal Palu
patent: 5439035 (1995-08-01), Dal Palu
patent: 5460771 (1995-10-01), Mitchell et al.
patent: 5469892 (1995-11-01), Noone et al.
patent: 5542716 (1996-08-01), Szabo et al.

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