Communications: electrical – Continuously variable indicating – With meter reading
Patent
1992-11-02
1995-01-03
Yusko, Donald J.
Communications: electrical
Continuously variable indicating
With meter reading
3403111, 335230, H04Q 130, G08B 522
Patent
active
053790324
ABSTRACT:
An impulse transducer that does not use eccentric, motor-driven weights is constructed of a permanent magnet movable armature that oscillates within a housing and impacts resilient bumpers to produce vibrations. The armature is accelerated by a varying magnetic field energized by an alternating current. The dimensions of the enclosed housing and the mass of the movable armature as well as the strength of the magnetic fields can be optimized for the impulse magnitude that is desired.
REFERENCES:
patent: 4259653 (1981-03-01), McGonigal
patent: 4638193 (1987-01-01), Jones
patent: 5107540 (1992-04-01), Mooney et al.
patent: 5172092 (1992-12-01), Nguyen et al.
Duff, Lewis, Mendenhall, Carman and Knipp "Physics for Students of Science and Engineering" 1926 pp. 396-397.
Foster Jewett E.
Holden Irving H.
Lind Theodore
Mooney Charles W.
Cunningham Gary J.
Krause Joseph P.
Motorola Inc.
Richardson Lawrence O.
Yusko Donald J.
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