Moving coil linear actuator

Details Moving coil linear actuator Moving coil linear actuator

1995-04-13

1997-05-20

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Linear

310 13, 310190, 318135, 335222, 335223, 335224, H02K 4100

Patent

active

056315058

ABSTRACT:
A moving coil linear actuator including an elongated permanent magnet having a cross-sectional width substantially greater than its edge height and having an elongated length of soft magnetic material disposed along one or both edges of the permanent magnet to enhance the magnetic field strength in the gap through which the moving coil translates.

REFERENCES:
patent: 3505544 (1970-04-01), Helms
patent: 3659124 (1972-04-01), Lathrop
patent: 3743870 (1973-07-01), Hunt
patent: 3899699 (1975-08-01), Griffing
patent: 3984706 (1976-10-01), Inouye
patent: 4247794 (1981-01-01), Jooss et al.
patent: 4570249 (1986-02-01), Malissin et al.
patent: 4992684 (1991-02-01), Matsui
patent: 5016238 (1991-05-01), Shtipelman et al.
patent: 5341054 (1994-08-01), Tal et al.
patent: 5343811 (1994-09-01), Schuster
patent: 5345206 (1994-09-01), Morcos

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