US PATENT SUBCLASS 16 / 277
.~ Resiliently biased hinge

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

221  DF  HINGE {32}
277.~ Resiliently biased hinge {10}
278  DF  .~.~> Including means to render spring ineffective through all or a portion of swing {1}
280  DF  .~.~> Biased from either direction toward neutral position (e.g., double acting) {4}
286  DF  .~.~> Having transverse helical spring or elastic strip {4}
293  DF  .~.~> Over-center spring or linkage travel (e.g., "holdback hinge") {3}
297  DF  .~.~> Having means to hold hinged members against pivotal movement about hinge axis (e.g., catch)
298  DF  .~.~> Having force adjustment {1}
302  DF  .~.~> Plural hinge axes (e.g., multiple pintle)
303  DF  .~.~> Having axially biased camming surface
304  DF  .~.~> Coil {3}
308  DF  .~.~> Torsion spring

DEFINITION

Classification: 16/277

Resiliently biased hinge:

(under subclass 221) Hinge including, in addition to the structure for swingably connecting the hinged members*, an element which is elastically deformed to exert a force upon a hinged member tending to swing the member about the hinge axis*.

(1) Note. The elastically deformable element must provide bias through a substantial arc during swinging movement of the hinged member* about the hinge axis*.

SEE OR SEARCH THIS CLASS, SUBCLASS:

225+, for a resiliently biased hinge wherein the elastically deformable element is the only structure which connects the hinged members*.

255+, for a resiliently biased hinge which is readily assembled or disassembled.

321+, for a hinge having a resiliently biased catch by which a hinged member* "snaps" into open or closed position, but is not biased during the remainder of the swing.