Method and means for producing motion in water beds

Details Method and means for producing motion in water beds Method and means for producing motion in water beds

1977-09-26

1979-02-27

Nunberg, Casmir A.

Beds

Cradles

Rocking devices

5370, 128 33, A61H 100

Patent

active

041410963

ABSTRACT:
Motion is departed to the water in water beds by periodically lifting a region of the lower surface of the water bed mattress, said region being contained somewhere within the outer margins of the water bed. A water motion that is more uniform and more acceptable in practical applications is provided by lifting a region at least one of whose margins is not parallel with the plane of any of the sides of the water bed mattress. In a preferred embodiment, it is a triangular section of the bottom of the water bed that is lifted, and the lifting is accomplished by tilting that triangular section upwardly toward the upper wall of the apparatus and by accomplishing that tilting from the apex of the triangular region. In a refinement of the action, a means is provided for adjusting the lifting action in frequency or degree to achieve a relationship with the natural resonant frequency of water movement that produces a pleasant bed motion.

REFERENCES:
patent: 2793375 (1957-05-01), Wardell, Jr.
patent: 3849812 (1974-11-01), Walsh
patent: 3872526 (1975-03-01), Betts
patent: 4048684 (1977-09-01), Korner et al.

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