Kurt L Weil, 9515736 Bottlebrush Cir, Delray Beach, FL 33484

4350917, Sep 21, 1982

Jun 9, 1980

6/157417

Frederic L. Lizzi - Tenafly NJ
Kurt W. Weil - New York NY

Riverside Research Institute - New York NY

H03J 328
H03H 940
A61B 1000

310320

An ultrasonic wave transducer is formed from a body of piezoelectric material having nonuniform thickness. Each location on the transducer is resonant at a different frequency according to the thickness at that point. By changing the frequency of the applied excitation signal, the origin and direction of the radiation can be altered.

4213464, Jul 22, 1980

Jan 9, 1978

5/867675

Louis Katz - Flushing NY
Kurt W. Weil - New York NY

Sonometrics Systems, Inc. - New York NY

A61B 316

128645

A transducer assembly is provided for moving a transducer into operative contact with a human eye. The assembly comprises a transducer holder that receives a transducer therein. A slide supports the transducer holder for rearward movement from a home position. A spring normally biases the transducer holder to the home position. Thus, as the assembly is moved toward the eye and the transducer engages the eye, the slide moves rearwardly against the spring bias to maintain the transducer against the eye of the patient. In order to prevent undue force on the eye, a release device is provided between the transducer holder and the transducer and is responsive to a preselected value of force for releasing the transducer from the transducer holder.