US PATENT SUBCLASS 267 / 164
.~ Bow spring or superposed spring elements

Current as of: June, 1999
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267 /   HD   SPRING DEVICES

158  DF  BENDABLE ALONG FLAT SURFACE (E.G., LEAF SPRING) {5}
164.~ Bow spring or superposed spring elements {1}
165  DF  .~.~> Zigzag or plural

DEFINITION

Classification: 267/164

(under subclass 158) Spring device in which either (a) the spring element is a unitary member bent back upon itself

intermediate the ends thereof to present superposed or confronting portions or (b) a group (e.g., pair) of separate, overlapping spring elements is provided; whereby said confronting portions or overlapping elements present a common bending plane or flexural arc.