Spring devices – Press cushion
Patent
1974-08-21
1976-02-17
Marbert, James B.
Spring devices
Press cushion
F16F 500
Patent
active
039387941
ABSTRACT:
A spring unit comprising spring means, a cage for the spring means, and means to control the path of movement of the spring means within the cage having in association therewith means to apply a required pre-load on the spring means within the cage.
In preferred embodiments of the caged spring assemblies, the open spaces between the coils of a contained spring are reduced to a dimension less than that of the thickness of the coils themselves. This prevents the coils from winding or screwing and from materially affecting the prescribed pre-load in event of spring breakage.
REFERENCES:
patent: 2540525 (1951-02-01), Howarth et al.
patent: 2815200 (1957-12-01), Gerhart et al.
Randolph, Sr. Allan E.
Stevens Harry G.
Bloom Jerome P.
Dayton Progress Corporation
Marbert James B.
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