Mandrel with expandable high temperature elastomeric polymer dis

Details Mandrel with expandable high temperature elastomeric polymer dis Mandrel with expandable high temperature elastomeric polymer dis

1992-12-23

1994-06-14

Bishop, Steven C.

Chucks or sockets

Expanding

Axially moving actuator

1988037, 269 481, 294 93, B23B 3140

Patent

active

053203640

ABSTRACT:
A mandrel for transporting a hollow cylinder including an elongated arm having an imaginary axis, an expandable disk shaped member having at least one hole and a circular outermost edge, the disk shaped member being mounted on and coaxially aligned with one end of the arm and including an elastomeric polymer material having a durometer of between about 25 and about 35 and a maximum continuous use temperature rating of at least about 230.degree. C., and means mounted on the mandrel to apply compressive pressure to the disk shaped member to increase the length of the circumference of the circular outermost edge. This mandrel is used in a process for coating hollow cylinders.

REFERENCES:
patent: 574763 (1897-01-01), Rudolph
patent: 3777875 (1973-12-01), Sobran
patent: 3945486 (1976-03-01), Cooper
patent: 4680246 (1987-07-01), Aoki et al.

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