Electromagnetic ram actuator

Details Electromagnetic ram actuator Electromagnetic ram actuator

1984-05-30

1985-07-02

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

335259, H01F 708

Patent

active

045271399

ABSTRACT:
A high-speed reciprocating actuator, of the type used as a print hammer in high-speed printers or for operating valves or the like, is made more compact and efficient by the arrangement of a stator yoke. The stator yoke provides a series of aligned magnetic gaps that cooperate with armature bars contained in a reciprocating ram member. These gaps are made part of a plurality of independent flux conducting loops. One or more activating coils pass through each of the loops to induce magnetic flux when ram actuation is desired.

REFERENCES:
patent: 3275964 (1966-09-01), Kumm
patent: 3503022 (1970-03-01), Burdett
patent: 4371857 (1983-02-01), Bohg et al.
patent: 4412197 (1983-10-01), Bohg et al.

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