Pressure roll for jacketing steel pipes with thermoplastic strip

Details Pressure roll for jacketing steel pipes with thermoplastic strip Pressure roll for jacketing steel pipes with thermoplastic strip

1978-03-09

1979-12-11

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

29132, B65H 8100, B21B 3108

Patent

active

041782003

ABSTRACT:
A roll or roller for urging extruded thermoplastic strip onto an axially advancing, rotating pipe is constructed from a silicon rubber core with a shore hardness of 40 and having a softer silicon rubber jacket with a shore hardness not exceeding 30. The core is traversed by axial bores.

REFERENCES:
patent: 1997442 (1935-04-01), Walsh
patent: 2248191 (1941-07-01), Pratt
patent: 2997406 (1961-08-01), Freeman et al.
patent: 3401439 (1968-09-01), Staats et al.
patent: 3460221 (1969-08-01), Korch
patent: 3686731 (1972-08-01), Koori et al.
patent: 3691949 (1972-09-01), Giori et al.
patent: 3786549 (1974-01-01), Pott
patent: 4078286 (1978-03-01), Takaguichi

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