Spring devices – Bendable along flat surface – Ring or annular spider
Patent
1999-03-22
2000-05-30
Schwartz, Christopher P.
Spring devices
Bendable along flat surface
Ring or annular spider
267158, 267148, 267164, 267166, 267181, F16F 120, F16F 118, F16F 136, F16F 106, F16F 100
Patent
active
060682507
ABSTRACT:
A circular multi-wave composite compression spring (10) is formed from a carbon fiber (58) reinforced laminate. The circular compression spring (10) is comprised of unidirectional graphite fibers (58) encased in a polymeric resin of generally rectangular cross-section such that adjacent crests (14) and troughs (16) of the waves in adjacent turns (12) of the spring (10) contact each other along a radial line generally extending from the longitudinal axis (30) of the spring (10). The line contact provides for increased fatigue life and more stable loading of the spring (10) under compression. The carbon fiber reinforced laminate provides comparable strength characteristics similarly configured springs fabricated from conventional materials while providing significantly reduced weight. Furthermore, the composite spring (10) offers increased performance parameters such as increased linearity response over a wider spring deflection range and with insignificant hysteresis.
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Smalley Steel Ring Company, Wheeling, Ililnois, Engineering and Parts Catalog, Catalog No. WS-93.
Hawkins James T.
Hawkins Michael
Proteus Engineering Inc.
Schwartz Christopher P.
Woller Jeffrey
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