Waterbed vibrator

Details Waterbed vibrator Waterbed vibrator

1980-03-31

1983-02-01

Dobeck, B.

Electricity: motive power systems

Impact, mechanical shock, or vibration-producing motors

318128, 318130, 128 32, H02K 3300

Patent

active

043718159

ABSTRACT:
A vibrator mechanism, including a transducer and driving circuit, particularly adapted to vibrating a waterbed, includes two independently controlled vibration sources, each of which can generate vibration of varying amplitude and frequency. These two sources are typically mounted at opposite ends of a waterbed frame and vibrated at different frequencies so that interference waves may be produced within the water of the bed to produce a pleasing effect for the user. Additional circuitry is described which provides a time varying frequency and amplitude for each of the vibrators, and this circuitry is in turn controlled by a clock circuit so that, by using the time varying frequency and amplitude, the user may be slowly lulled to sleep or slowly awakened using the vibration within the waterbed as a stimulus for controlling the rate of falling asleep and waking up.

REFERENCES:
patent: 4101816 (1978-07-01), Shepter
patent: 4105024 (1978-08-01), Raffell

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