Display or indicating device with magnetic stop

Details Display or indicating device with magnetic stop Display or indicating device with magnetic stop

1979-10-05

1981-01-06

Pitts, Harold I.

Communications: electrical

Audible indication

Percussion-type sound producer

3403785, G08B 524

Patent

active

042439787

ABSTRACT:
A rotatable display or indicating element mounts a permanent magnet and is rotated greater than 90.degree. and less than 180.degree. between mechanical stops by an exterior pole piece of reversible polarity. A small permanent magnet adjacent the pole piece is designed with the locus of the rotatably mounted magnet to provide a stable position for the element just inward of the mechanical limiting position.

REFERENCES:
patent: 3518664 (1970-06-01), Taylor

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