US PATENT SUBCLASS 16 / 286
.~.~ Having transverse helical spring or elastic strip

Current as of: June, 1999
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16 /   HD   MISCELLANEOUS HARDWARE

221  DF  HINGE {32}
277  DF  .~ Resiliently biased hinge {10}
286.~.~ Having transverse helical spring or elastic strip {4}
287  DF  .~.~.~> Plural hinge axes (e.g., multiple pintle ) {1}
289  DF  .~.~.~> To counterbalance weight of hinged member (e.g., closure biased to open position) {1}
291  DF  .~.~.~> Over-center spring or linkage travel (e.g., "holdback hinge")
292  DF  .~.~.~> Having means to hold hinged members against pivotal movement about hinge axis (i.e., catch)

DEFINITION

Classification: 16/286

Having transverse helical spring or elastic strip:

(under subclass 277) Hinge wherein a hinged member* is swung about the hinge axis* by an elastically deformable element comprising either (a) a coil spring in the form of a helix, or (b) a length of resilient material adapted to be stretched in the direction of its length, wherein either the axis of the helix or the length of the resilient material is orthogonal with the hinge axis.

SEE OR SEARCH THIS CLASS, SUBCLASS:

281, for a hinge which employs a coil spring transverse to the hinge axis* to bias a hinged member* from either side of a neutral position toward the neutral position.