Vibration motor

Details Vibration motor Vibration motor

1979-03-29

1980-11-25

Hershkovitz, Abraham

Motors: expansible chamber type

Independently operated timer, delay, pattern or cyclic control

Independent distributor actuation for cyclic control

91 5, 91533, 156580, F15B 2102

Patent

active

042351545

ABSTRACT:
A vibration motor comprising a rotor arranged within a cylindrical chamber having opposed radially arranged reciprocating pistons within cylinders opening into the chamber. Circumferential grooves formed in the rotor surface sequentially open the cylinders to a pressurized fluid outlet passageway, to move each piston outwardly, and to a fluid exit passageway to drain the cylinders for inward movement of the pistons. The pistons are axially aligned with and coupled to each other for producing rapid, low amplitude beam vibration. This is a division of application Ser. No. 898,905, filed Apr. 24, 1978, now U.S. Pat. No. 4,154,641.

REFERENCES:
patent: 440527 (1890-11-01), Zimmer
patent: 1006228 (1911-10-01), Kirkus
patent: 2592940 (1952-04-01), Moneyer
patent: 2972868 (1961-02-01), Sassen
patent: 3075504 (1963-01-01), Vogel
patent: 3587402 (1971-06-01), Schluter
patent: 3995530 (1976-12-01), Gunn

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