US PATENT SUBCLASS 351 / 151
.~.~.~.~ Spring between lens and strap

Current as of: June, 1999
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351 /   HD   OPTICS: EYE EXAMINING, VISION TESTING AND CORRECTING

41  DF  SPECTACLES AND EYEGLASSES {29}
140  DF  .~ Connectors {3}
142  DF  .~.~ Strap type {8}
150  DF  .~.~.~ With resilient parts (e.g., resilient strap arms) {1}
151.~.~.~.~ Spring between lens and strap

DEFINITION

Classification: 351/151

(under subclass 150) Subject matter wherein resilient metal elements, such as leaf springs, are interposed between the strap member and the adjacent edge of the lens to maintain the connection between the lens and the strap flexibly but firmly in proper relation.

(1) Note. These springs are usually provided in rimless-type spectacles.

SEE OR SEARCH THIS CLASS, SUBCLASS:

110, for rimless lens-type mountings.

145+, for strap connectors with a cushion around the lens screw or bolt.

SEE OR SEARCH CLASS

267, Spring Devices, for spring structures generally.