Arthur M Epstein

US Patent:

40085210, Feb 22, 1977

Filed:

Mar 24, 1976

Appl. No.:

5/670026

Inventors:

Arthur M. Epstein - New York NY
Hans E. Baumayr - New York NY

Assignee:

Baumayr Instrument Co., Inc. - New York NY

International Classification:

A61C 110

US Classification:

32 27

Abstract:

A dental tool includes an articulated tubular body member having proximal and distal sections angularly adjustable about an elbow housing. An axial drive shaft is located in the proximal section and a slide member is reciprocable in the distal section and spring urged to a retracted position and coupled to the drive shaft by a rotary to reciprocatory motion translator. The motion translator includes an actuator located in the elbow section and limited to a rocking motion and rotatably engaging an eccentric projection forwardly from the shaft at an angle thereto and a connecting rod having spherical ends which respectively engage a mating gripping socket in the actuator eccentric to the pin and a mating gripping socket at the rear of the slide member. A tool holding chuck is carried by the distal end of the slide member. In a modified form the retractor spring is omitted and the connecting rod is coupled to the slide member by a rack and pinion.

US Patent:

47861444, Nov 22, 1988

Filed:

Jan 22, 1987

Appl. No.:

7/013332

Inventors:

Arthur B. Epstein - Great Neck NY

International Classification:

G02B 702
G01N 2101

US Classification:

350321

Abstract:

A contact lens holder including a lens holder and a support for positioning the lens before an optical instrument for visual inspection of the lens. An annular ring having a generally C-shaped channel cross section which defines a groove is provided for accepting and holding the periphery of a soft lens. Similarly, a U-shaped resilient fork holds the periphery of a rigid lens, for central inspection thereof. A hemispherical element is provided for holding a soft lens, and a clip device is provided for holding a rigid lens, during peripheral area inspection. The holder facilitates contact lens inspection using a biomicroscope.