Electric powered apparatus

Details Electric powered apparatus Electric powered apparatus

1982-05-28

1984-02-14

Dobeck, B.

Electricity: motive power systems

Linear-movement motors

335265, 335277, 361190, H02K 3300

Patent

active

044319525

ABSTRACT:
An improved vacuum pump driven by a unique electrically powered servo motor. The vacuum pump comprises an extremely simple and inexpensive pump arrangement utilizing a reciprocating piston and a rolling lobe diaphragm to eliminate the need for close tolerances while still providing high efficiency. The servo motor includes a pair of relatively movable sequentially operating armatures which eliminate the need for any external timing mechanism or for any complex delay mechanism. The servo motor of the present invention is inherently capable of operating the pump as a self-actuating demand pump.

REFERENCES:
patent: 1510455 (1924-10-01), Bucher
patent: 3010055 (1961-11-01), Nicolaus
patent: 3693125 (1972-09-01), Prouty
patent: 4233585 (1980-11-01), Sugimoto et al.

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