Pickering & Company, Inc.

Stanton Magnetics, Inc.

Frank J Frielingsdorf

Alan Hofer

Peter Untersander

George Alexandrovich, Sr

Roland C Wittenberg

John Kuykendall

A mounting for a microphone includes a plate with an opening the plate being shaped and arranged so that it holds a microphone secured in said opening with the microphone contacting a person's neck. In this position the microphone can pick up sounds produced by the person through bone conduction.

Microphone mounting for a person's neck

A microphone assembly for mounting in a head gear of a person includes a microphone positioned in intimate contact with the person for receiving vibrations from the vocal cords by bone conduction, a housing for holding the microphone, a mounting ring for mounting the housing to the head gear and a damper element disposed between the microphone and the head gear for damping extraneous sides transmitted through the headgear before they are picked up by the microphone.

Bone conduction microphone with mounting means

Phonograph cartridge

Collapsible headset

A phonograph turntable having a tone arm cueing mechanism is provided with a switch arrangement for activating the cueing mechanism and stopping the phonograph when the tone arm reaches the end of the information bearing groove of a record. The switch arrangement includes a reed switch and magnet one of which is mounted to move with the tone arm. The position of at least one of the reed switch and magnet may be varied to alter the position at which the cueing mechanism is activated.

Automatic stop for turntable tone arm

A turntable to enable playback of record matrices and stampers is provided. The turntable rotates in the direction opposite that of a conventional turntable and is provided with a tone arm carrying a stylus designed to ride the ridges of the stamper. Magnetic members on the table support surfaces hold the stamper flat to prevent 'oil canning'. The magnetic poles of the members are oriented radially to minimize the effect of the magnetic members on the turntable transducer. The tracking force of the tone arm is variable by means of a sliding weight.

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Port Jefferson, NY, United States of America

Frank J Frielingsdorf