Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1992-07-30
1994-11-29
Peng, John K.
Communications: electrical
Condition responsive indicating system
Specific condition
34082544, 455 381, G08B 2100, G08B 522, H04B 700
Patent
active
053693990
ABSTRACT:
An electronic device (100) comprises a housing (222), a circuit supporting substrate (454, 456) within the housing and mechanically coupled thereto, and electronic circuitry (744, 746, 748, 750, 752) mechanically coupled to the circuit supporting substrate (454, 456). The electronic device (100) further comprises a mechanical shock isolation member (760, 762, 1312) within the housing (222) and mechanically coupled to the circuit supporting substrate (454, 456) for substantially increasing the natural mechanical frequency of vibration of the circuit supporting substrate (454, 456). The mechanical shock isolation member (760, 762, 1312) comprises an element (1313) having a planar surface (1315). The mechanical shock isolation member (760, 762, 1312) further comprises protuberances (1314) mechanically coupled to and extending perpendicularly from the planar surface (1315) for absorbing a tolerance build-up.
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Brooks Dwight D.
Hertz Allen D.
Rivas Mario A.
Tribbey David A.
Berry Thomas G.
Breeden R. Louis
Motorola Inc.
Mullen Jr. Thomas J.
Peng John K.
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