Vibrating apparatus for low profile pagers

Details Vibrating apparatus for low profile pagers Vibrating apparatus for low profile pagers

1995-04-06

1996-09-10

Horabik, Michael

Communications: electrical

Continuously variable indicating

With meter reading

3404071, G08B 522

Patent

active

055549713

ABSTRACT:
Vibratory alertion of received messages to subscribers of low profile pagers can be achieved in the following manner. On the substrate, or pager housing, attaching a pivotal post and a bumper a predetermined distance from the pivotal post. Attaching a substantially planar polarizable material to the pivotal post such that the polarizable material is substantially parallel to the substrate and when in motion, moves substantially parallel to the substrate. The polarizable material is set in motion by an excitation winding which provides a varying field.

REFERENCES:
patent: 4028502 (1977-06-01), Moricca et al.
patent: 4119811 (1978-10-01), Moricca et al.
patent: 4225965 (1980-09-01), Baugh
patent: 4380759 (1983-04-01), Sulkaski et al.
patent: 5107540 (1992-04-01), Mooney et al.
patent: 5379032 (1995-01-01), Foster et al.

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