Electricity: circuit makers and breakers – Multiple circuit control – Multiple switch
Patent
1996-09-10
1998-05-05
Wong, Peter S.
Electricity: circuit makers and breakers
Multiple circuit control
Multiple switch
200512, 200517, H01H 1370, H01H 110
Patent
active
057477574
ABSTRACT:
A tamper resistant membrane switch includes a backer plate and an overlying metal panel. Sandwiched between the backer plate and metal panel is a membrane switch subassembly. A plurality of spacers between the backer plate and metal panel separate the two but allow the metal panel to deflect toward the backer plate when external finger pressure is applied. Such deflection closes the underlying poles of the membrane switch subassembly to actuate the switch. The positioning and size of the spacers determines where deflection can occur and how much force is needed to actuate the switches. The overlying panel, being formed of solid metal over its entire surface, is resistant to damage from vandalism, thievery or other attack.
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Bielik Robert S.
Van Zeeland Anthony J.
Monopanel Technologies, Inc.
Patel Rajnikant B.
Wong Peter S.
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