Pipes and tubular conduits – Plural duct
Patent
1983-08-03
1985-07-16
Bryant, III, James E.
Pipes and tubular conduits
Plural duct
138114, 138113, F16L 918
Patent
active
045290091
ABSTRACT:
A multiple core hose comprises a plurality of discrete hose assemblies, each including a primary hose formed from a flexible synthetic plastics material, having a fluid passage extending generally longitudinally therethrough, and a plurality of generally longitudinally extending recesses adapted to seat secondary hoses; a plurality of secondary hoses formed from a flexible synthetic plastics material, seated in the primary hose recesses, the secondary hoses having fluid passages extending generally longitudinally therethrough in heat transfer relation with the primary hose passage; and a flexible tubular sheath of a thermally insulating material, the primary/secondary hose assemblies being assembled together, side-by-side, with the seated secondary hoses disposed around the primary hose passages, within the sheath.
REFERENCES:
patent: 437445 (1890-09-01), Morton
patent: 2000906 (1935-05-01), Turner
patent: 3233567 (1966-02-01), Goldfield
patent: 3590855 (1971-07-01), Wollen et al.
patent: 3699692 (1972-10-01), Smith
patent: 3797529 (1974-03-01), Gebelius
patent: 4456058 (1984-06-01), Powell
Horner David J.
Robertson Robert B.
Searle Kenneth G.
Bryant III James E.
Plascoat U.K. Limited
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