Spring drive assembly

Details Spring drive assembly Spring drive assembly

1998-08-25

2000-08-08

Matecki, Katherine A.

Motors: spring, weight, or animal powered

Composite

Spring only

185 43, 185 45, 242372, 254364, F03G 102

Patent

active

06098757&

ABSTRACT:
A device is disclosed comprising (a) a first and second member in rotational alignment to each another; (b) a torsional resilient mechanism for providing torsional resilience between the first and second members, the torsional resilient mechanism comprising at least two or more coaxial helical springs connected in series with the inner-most spring connected to the first member and the outer-most spring connected to the second member; and (c) one or more stops for preventing at least one of said springs from winding or unwinding beyond a particular point.

REFERENCES:
patent: 470611 (1892-03-01), Wood
patent: 740114 (1903-09-01), Fiske
patent: 1258158 (1918-03-01), Sims
patent: 1581527 (1926-04-01), Yingling
patent: 2481037 (1949-09-01), Pringle
patent: 3384321 (1968-05-01), Becker et al.
patent: 3804407 (1974-04-01), Saint
patent: 5217208 (1993-06-01), Stephenson
patent: 5590741 (1997-01-01), Storms
patent: 5775619 (1998-07-01), Tabellini

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