Curved mandrel for curing polymeric hose and method

Details Curved mandrel for curing polymeric hose and method Curved mandrel for curing polymeric hose and method

1981-10-28

1984-03-13

Derrington, James H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

29433, 29434, 29526R, B29H 518

Patent

active

044366906

ABSTRACT:
A curved mandrel, method of making same, and method of curing an uncured polymeric hose employing such curved mandrel are provided and the curved mandrel comprises a plurality of members disposed in end-to-end relation to define the configuration of the mandrel including a predetermined curvature therein, interlocking portions for interlocking the members in only one position to define the configuration and curvature, and a readily attachable and detachable device for holding the members axially against each other after interlocking wherein the members with the interlocking portions and holding device are adapted to provide a substantially straight mandrel for installation of an uncured straight hose therearound, define the configuration and curvature in the mandrel and uncured hose, and provide looseness and axial spacing between members to enable easy withdrawal of the cured curved hose from around the members.

REFERENCES:
patent: 1801346 (1931-04-01), Heath
patent: 2970343 (1961-02-01), Johnson
patent: 3203285 (1965-08-01), Schmidt
patent: 4015918 (1977-04-01), McPhee
patent: 4030871 (1977-06-01), Cobb
patent: 4052498 (1977-10-01), Burow
patent: 4197079 (1980-04-01), Patzner

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