Electricity: circuit makers and breakers – Special application
Patent
1980-11-18
1982-09-21
Grimley, Arthur T.
Electricity: circuit makers and breakers
Special application
335205, 340574, H01H 900
Patent
active
043508537
ABSTRACT:
An alarm toe switch inserted within a shoe for energizing an alarm circuit n a covert manner includes an insole mounting pad into which a miniature reed switch is fixedly molded. An elongated slot perpendicular to the reed switch is formed in the bottom surface of the mounting pad. A permanent cylindrical magnet positioned in the forward portion of the slot with a diameter greater than the pad thickness causes a bump above the pad. A foam rubber block is also positioned in the slot rearwardly of the magnet and holds the magnet in normal inoperative relation. A non-magnetic support plate covers the slot and holds the magnet and foam rubber in the slot. The plate minimizes bending and frictional forces to improve movement of the magnet for reliable switch activation. The bump occupies the knuckle space beneath the big toe. When the big toe is scrunched rearwardly the magnet is moved within the slot relative to the reed switch, thus magnetically activating the switch. When toe pressure is released the foam rubber block forces the magnet back into normal inoperative position to deactivate the reed switch. The reed switch is hermetically sealed with the magnet acting through the wall so the switch assembly S is capable of reliable operation even in wet and corrosive environments.
REFERENCES:
patent: 1658848 (1928-02-01), Kalikow
patent: 1771258 (1930-07-01), Kalikow et al.
patent: 2780693 (1957-02-01), McClellan
patent: 3012116 (1961-12-01), Boylan et al.
patent: 3445796 (1969-05-01), Spiroch et al.
patent: 3777086 (1973-12-01), Riedo
patent: 3792389 (1974-02-01), Murphy
patent: 4005296 (1977-01-01), Olson
patent: 4048850 (1977-09-01), Ramberg
Besha Richard G.
Ginsburg Morris
Grimley Arthur T.
Libman George H.
Sopp Albert
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