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US 4,055,368 AGranted
Biasing element having one or more force stages
AssigneeCaterpillar Tractor Co.
InventorJohn W. Sogge
Life of this patent
Estimating the term…
Abstract
A biasing element has a force transmitting material positioned within a chamber of a housing having deflectable walls. A piston contacts and moves the force transmitting material into forcible contact with the housing walls in response to movement of the piston. Further movement of the piston deflects the housing walls in response to forces from the force transmitting material in the housing.
Claims6
A biasing element, comprising:
- a housing having resilient walls, an axis, and a chamber, said walls being outwardly movable in response to a force of a preselected magnitude;
- a compressible force transmitting material positioned within the housing chamber, said force transmitting material transmitting said force outwardly against the housing walls;
- means for maintaining the force transmitting material within the housing;
- a piston positioned in the housing and being movable through the chamber between a first position at which the piston is urging against the force transmitting material and a second position at which the force transmitting material is moved by the piston into forcible contact with the resilient housing walls and said housing walls are moved outwardly in response to said forcible contact by said force transmitting material being at said preselected magnitude;
- and
- a Belleville spring positioned in the chamber between the piston and force transmitting material.
3 more elements
Dependencies are inferred from the claim text.