End adaptor for flexible corrugated tube

Details End adaptor for flexible corrugated tube End adaptor for flexible corrugated tube

1987-02-12

1989-02-14

Bryant, III, James E.

Pipes and tubular conduits

Combined

With end structure

138122, 285175, 264286, F16L 916

Patent

active

048040193

ABSTRACT:
A flexible corrugated tube containing an integral flared end adaptor is made by applying an uncured elastomer tube about a forming mandrel as well as a flared end mold. Corrugations having grooves and ribs generally exist along at least a portion of the forming mandrel usually in the form of a cured, corrugated elastomer sleeve. Optionally, a portion of the flared end mold also has corrugations thereon. A cord is wrapped about the uncured tube thereby pressing the cord into the grooves between the corrugated ribs. The elastomeric sleeve is then cured and the cord removed.

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patent: 3809522 (1974-05-01), Kramer
patent: 3899012 (1975-08-01), Sather
patent: 4362187 (1982-12-01), Harris et al.

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