ApplicationNo. 634764 filed on 12/27/1990
US Classes:351/106, Screwless lens mounting351/110, Rimless mounting351/116Detachable
ExaminersPrimary: Bovernick, Rodney B.
Attorney, Agent or Firm
International ClassesG02C 001/04
AbstractEyeglasses including lens and frame portions with a holder and holding engagement with the lens. The frame portions are shaped of a wire material with the holder including looped bent wire portions projecting forwardly of the frame portions. The lens include a mounting hole or recess for receiving the loop bent wire portions, with the hole or recess being of an oblong shape corresponding to a cross-sectional shape of the loop bent wire portions so as to be operable to receive the respective loop bent wire portions with the loop bent wire portions resiliently squeezed between opposed narrow end portions of the oblong holes or recesses thereby insuring a firm yet releasable fixation between the lens and the frame portions.
Field of SearchWITH PERIODOIC OR REPETITIOUS AMPLITUDE VARYING MEANS (E.G., TREMOLO)
Blocking oscillator type
With sync, trigger, or pulsing circuit (e.g., self-pulsing)
TUBE STRUCTURE FORMS INDUCTIVE PART OF RESONANT CIRCUIT
Amplitude stabilization and control
Secondary emission (e.g., dynatron)
PHASE SHIFT TYPE
Cyclic frequency sweeping means (e.g., vibrato)