Solid state watch with inertial switch

Details Solid state watch with inertial switch Solid state watch with inertial switch

1974-09-10

1977-12-06

Jackmon, E. S.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

58 23R, 58 50R, 361414, G04B 1924, G04C 300

Patent

active

040609715

ABSTRACT:
Disclosed is a solid state wristwatch of relatively small size useful as a small man's watch or even a ladies' watch. It incorporates an arm responsive inertial switch for energizing a light emitting diode display. The display forms part of a timing module and is mounted on one side of a laminar ceramic substrate. Mounted on the other side of the substrate is a combination timepiece and calendar circuit chip. Printed circuits are formed on non-contacting surfaces of the substrate laminations and interconnected by conductive pins. The entire timing module is staked to a plastic frame which also carries the watch batteries, quartz crystal, trimmer capacitor, switches, or other watch components.

REFERENCES:
patent: 3148310 (1964-09-01), Feldman
patent: 3672155 (1972-06-01), Bergey et al.
patent: 3739469 (1973-06-01), Dougherty
patent: 3742699 (1973-07-01), Bergey
patent: 3757510 (1973-09-01), Dill
patent: 3759031 (1973-09-01), McCullough et al.
patent: 3765163 (1973-10-01), Levine et al.
patent: 3803827 (1974-04-01), Roberts
patent: 3863436 (1975-02-01), Schwarzchild et al.
patent: 3914932 (1975-10-01), Teraishi et al.

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