Accumulator piston having a coil spring secured thereto

Details Accumulator piston having a coil spring secured thereto Accumulator piston having a coil spring secured thereto

1988-02-17

1989-11-21

Oberleitner, Robert J.

Spring devices

Coil

Including end thrust member

92135, 138 31, 403282, F16F 112, F01B 3100, F16L 5504

Patent

active

048817252

ABSTRACT:
Herein disclosed is an accumulator for suppressing an abrupt rise in and suppressing the pressure of a fluid. In this accumulator, a coil spring for urging a piston fitted in a cylinder in the axial direction thereof is secured on the pistion by securing it on one side of a plate and by securing the plate on the piston. The plate is formed with a cylindrical nub, on which is fitted on turn of the coil spring. This coil spring is secured on the plate by deforming the nub radially outward to trap that one turn of the coil spring. The plate in turn is secured in a bottomed cylindrical hollow portion which is formed in the piston.

REFERENCES:
patent: 3122829 (1964-03-01), Schaad et al.
patent: 3782708 (1974-01-01), Dulude et al.
patent: 4651782 (1987-03-01), Fulmer

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