Title: Polymer spring

Abstract: This specification discloses a polymer spring including an elongated shank having a first end with a longitudinal slit and an enlarged portion, an integral enlarged head at a second end of the shank opposite from the first end, and an integral, cupped flange for providing a biasing force surrounding the shank and opening toward the first end. Deflection of the flange creates a biasing force tending to cause the flange to return to an undeflected state.

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Inventors: Garn, Larry W. (Sparta, MI, US)

Application Number: 855969
Filing Date: 1977-11-30
Publication_date: 1980-08-19
Assignee: Steelcase Inc. (Grand Rapids, MI)
Primary Class(es): 200/530 16/86R, 24/453, 200/341, 267/140, 292/70
Other Classes:
US Patent Ref:

1915249	Jun, 1933	Jorgensen	16/86.
3168961	Feb, 1965	Yates	220/307.
3424051	Jan, 1969	Baugh	24/214.
3928741	Dec, 1975	Comer	200/159.
3932722	Jan, 1976	Obata et al.	200/340.
3940585	Feb, 1976	Schaad	200/159.

Other Refs: 1444846

Aug, 1976	GB

Primary Examiner: Pollard, Steven M.
Assistant Examiner:
Attorney: Price, Heneveld, Huizenga & Cooper