BUCKLING SPRING MEMBER FOR CLUTCH MECHANISM
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United States of America Patent
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app pub date -
Nov 4, 2013
filing date -
Nov 12, 2012
priority date (Note) -
Abandoned
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Abstract
Buckling spring member, particularly for use with a friction clutch mechanism for dual mode water pumps. The buckling spring member is made from a thin piece of a metal material and has a circular configuration. The center portion of the spring member is concave with a plurality of openings and spokes. The openings are preferably heart-shaped. The inner and outer rings are substantially planar and provide rigidity. The friction clutch mechanism and buckling spring mechanism are preferably used for dual mode coolant pumps with two modes of operation, namely an electric motor operation and a mechanical pulley-driven operation.
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