Pipes and tubular conduits – Flexible – Spirally wound material
Patent
1976-04-20
1983-05-17
Bryant, III, James E.
Pipes and tubular conduits
Flexible
Spirally wound material
138122, 138154, 428192, 156143, F16L 1108
Patent
active
043835554
ABSTRACT:
A flexible hose having resistance to radial crush is formed from a bonded and interlocked helically wound rod or strip of plastic co-extrusion. The co-extruded profile of the strip is defined by a pair of matable rib components which are joined by a web. The rib components are bonded, sealed and interlocked together at adjoining convolutions of the profile not only to form the hose but also to form a composite rib integrated into the hose for resisting radial crushing and axially directed deformation forces exerted on the hose. The composite rib is formed from a material having a hardness which is greater than that of at least a part of the web for rendering the rib with a relatively stiff bend resistance characteristic and the web with a relatively soft and flexible characteristic. The web itself may be a co-extrusion of two materials placed in series, or in parallel as a laminate, or a combination thereof. If a laminate, one of its materials may be the same as that of the rib but much thinner so as to provide a larger surface area for greater bonding or adhesion among the several parts of the extruded profile. Different materials, especially in a laminate, enable the hose to be tailored for specific uses and environments which come into contact with either or both the inside and outside of the hose.
REFERENCES:
patent: 2713381 (1955-07-01), Seck
patent: 2731040 (1956-01-01), Warburton
patent: 2739089 (1956-03-01), Hageltorn
patent: 2901024 (1959-08-01), Marsden
patent: 3184358 (1965-05-01), Utz
patent: 3199541 (1965-08-01), Richitelli
patent: 3248272 (1966-04-01), Sawada
patent: 3255780 (1966-06-01), Squirrell
patent: 3297055 (1967-01-01), Beck
patent: 3765329 (1973-10-01), Kirkpatrick et al.
patent: 3890181 (1975-06-01), Stent et al.
patent: 3910808 (1975-10-01), Steward
Bryant III James E.
Plastiflex Company International
Sternfels Lewis B.
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