Electromagnetically driven optical blade

Details Electromagnetically driven optical blade Electromagnetically driven optical blade

1976-03-09

1977-11-29

Evans, F. L.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Retarded or delayed type

335303, 354234, G05D 2500

Patent

active

040603130

ABSTRACT:
A thin permanent magnet sheet is sealed in a plastic blade. The magnet sheet is provided with perforations for binding the plastic material on one side of the magnet sheet with the plastic material on the other side thereof, thereby reinforcing the blade and facilitating the manufacture thereof. The magnet sheet is further provided on both sides thereof with projections of equal height to facilitate the molding of the plastic blade with the magnet sheet sealed therein at the middle of the thickness thereof.

REFERENCES:
patent: 3205569 (1965-09-01), Nerwin et al.
patent: 3213335 (1965-10-01), Bourne
patent: 3635141 (1972-01-01), Starp et al.

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