Variable rate secondary spring for a primary leaf suspension spr

Details Variable rate secondary spring for a primary leaf suspension spr Variable rate secondary spring for a primary leaf suspension spr

1989-03-09

1991-07-30

Halvosa, George E. A.

Spring devices

Vehicle

Leaf

267 45, 267265, 280718, F16F 122

Patent

active

050354060

ABSTRACT:
A vehicle spring suspension system comprising a primary spring and a secondary spring attached to the primary spring for aiding the primary spring to restore vehicle height and to carry increasing loads placed on or in the vehicle. The secondary spring is connected at one end by an assembly which can have serveral different arrangments for varying the load supporting function of the secondary spring on the primary spring, depending on the need for more or less load carrying cooperation between the primary and secondary springs.

REFERENCES:
patent: 606386 (1926-11-01), Rouanet
patent: 621962 (1927-03-01), Stringer
patent: 671675 (1928-05-01), Hansen
patent: 854442 (1932-04-01), Baird
patent: 860656 (1932-05-01), Crabtree
patent: 901287 (1933-03-01), Corriveau
patent: 915227 (1909-03-01), Scott
patent: 1778887 (1930-10-01), Crabtree
patent: 3069150 (1962-12-01), Lenett

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