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Low profile vibratory alerting device

  • US 5,175,459 A
  • Filed: 08/19/1991
  • Issued: 12/29/1992
  • Est. Priority Date: 08/19/1991
  • Status: Expired due to Term
First Claim
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1. An electronic device, comprising:

  • a housing for the electronic device having a rigid member integrally attached thereto and extending therefrom, the rigid member constructed to cooperatively connect with a rotatable body and to secure the rotatable body to the housing while allowing the rotatable body to rotate about the rigid member;

    a circuit supporting substrate arranged within the housing and coupled thereto; and

    alerting means for providing a vibratory alert, the alerting means comprising;

    a plurality of coils disposed on the circuit supporting substrate and arranged about the rigid member with each coil capable of being selectively energized;

    a body comprising magnetic material and coupling to the rigid member, the body rotatable about the rigid member in a plane substantially parallel to the circuit supporting substrate for directly generating vibrations in the housing via said rigid member; and

    selective energizing means for selectively energizing the plurality of coils to rotate the body to provide the vibratory alert.

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