Brake cylinder piston spring

Details Brake cylinder piston spring Brake cylinder piston spring

1991-12-05

1993-01-19

Oberleitner, Robert J.

Spring devices

Coil

Irregular

267176, F16F 106, F16F 108

Patent

active

051801493

ABSTRACT:
A coil spring is provided for use in biasing opposing piston portions of a brake cylinder away from each other. The spring includes a body portion formed of a length of alloy wire and including adjacent coils spaced from each other defining a cylindrical helix. A pair of end portions are formed integrally with the body portion and include a plurality of coils positioned in contact with each other and defining a conical helix shape for engaging the opposing piston portions of the brake cylinder.

REFERENCES:
patent: 2616684 (1952-11-01), Richter
patent: 3292884 (1965-05-01), Scheldorf
patent: 3336842 (1967-08-01), Adelt
patent: 3589226 (1971-05-01), Shadowens
patent: 4017062 (1977-04-01), Zwirner
patent: 4077619 (1978-03-01), Borlinghaus
patent: 4111407 (1978-09-01), Stager
patent: 4463843 (1984-08-01), Taig
patent: 4993376 (1991-02-01), Fukutome et al.

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