Variable tension device with adjustable features for spring rate

Details Variable tension device with adjustable features for spring rate Variable tension device with adjustable features for spring rate

1984-06-08

1986-05-20

Silverberg, Fred

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Hinge

Resiliently biased hinge

16308, 16DIG36, 267154, 403397, E05F 108

Patent

active

045891648

ABSTRACT:
In a variable tension device having an elongated torsion member adapted to be connected at axially spaced points to a relatively fixedly mounted support and to an object rotatably movable relative to said support, novel structure is provided for adjusting (a) the effective length of the torsion element, thereby to vary the effective spring rate, (b) the angular anchor position of that portion of the torsion bar secured to the support, and (c) the axial and, if desired, angular position relative to the torsion element of the member connecting that element to said external object.

REFERENCES:
patent: 397366 (1889-02-01), Jarrell
patent: 3022536 (1962-02-01), Floehr
patent: 3377882 (1968-04-01), Schrempp
patent: 3476375 (1969-11-01), Brasseur
patent: 3787923 (1974-01-01), Peterson
patent: 3965533 (1976-06-01), Frohlich
patent: 4309120 (1982-01-01), Werthmann

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