Helical spring damper

Details Helical spring damper Helical spring damper

2011-01-18

2011-01-18

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

With diversely oriented inlet or additional inlet for...

Diverse fluids to motor

C415S175000, C267S169000, C251S064000

Reexamination Certificate

active

07871240

ABSTRACT:
A damped spring assembly includes a helical spring. The helical spring is movable along an axis and has a winding direction. A damper is movable along the axis and includes a helical shape. The damper is wound in a direction opposite the winding direction. The damper applies a radial load to the spring for damping movement of the spring along the axis as the spring vibrates. The damper has a very low axial spring rate and it contributes very little to the axial load provided by the spring.

REFERENCES:
patent: 1928678 (1933-10-01), Sjolander
patent: 2040435 (1936-05-01), Griswold
patent: 2136908 (1938-11-01), Pierce et al.
patent: 3602205 (1971-08-01), Turkish
patent: 5351732 (1994-10-01), Mills et al.
patent: 6910851 (2005-06-01), Franconi et al.

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