1979-05-07
1980-11-25
Reger, Duane A.
Spring devices
Rubber
267 63R, F16F 136
Patent
active
042354277
ABSTRACT:
A plastic spring element defined by inner and outer convolutions of different thickness defined by radii and with tapered walls extending therebetween.
REFERENCES:
patent: 1705037 (1929-03-01), Taub
patent: 3037764 (1962-06-01), Paulsen
patent: 3118659 (1964-01-01), Paulsen
patent: 3160407 (1964-12-01), Vaugoyeau
patent: 3201111 (1965-08-01), Afton
patent: 3412990 (1968-11-01), Gladston
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