Variable strength spring

Details Variable strength spring Variable strength spring

1989-06-09

1990-06-26

Halvosa, George E. A.

Spring devices

Vehicle

Elastomeric

180312, 180902, 248635, 248638, 248677, 280716, 2671417, 267153, F16F 138

Patent

active

049365584

ABSTRACT:
A variable strength spring includes a tubular body, at whose inner surface is coaxially provided a concave contact seat, a ring made of elastomeric material rigidly engaged in the tubular body and a connection tang rigidly engaged in the elastic ring. The elastic ring has a radial groove that defines, on the longitudinal length of the ring, a first portion rigidly engaged inside the tubular body opposite the contact seat, and a second portion slidably engaged in the tubular body. On the outer circumferential end of the second portion is situated a rigid rabbet edge positioned opposite to a stopping seat inside the tubular body.

REFERENCES:
patent: 2069270 (1937-02-01), Piron
patent: 2117264 (1938-05-01), Workman
patent: 2242212 (1941-05-01), Hankins
patent: 2245296 (1941-06-01), Piron
patent: 2553188 (1951-05-01), Grube
patent: 3037764 (1962-06-01), Paulsen
patent: 4424960 (1984-01-01), Dan et al.

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