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Indicating fuse block

  • US 5,659,283 A
  • Filed: 03/30/1995
  • Issued: 08/19/1997
  • Est. Priority Date: 12/30/1994
  • Status: Expired due to Term
First Claim
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1. An indicating fuse assembly comprising:

  • (a) a housing formed of an electrically non-conductive material;

    (b) an array of first and second electrically conductive contact members extending within the housing for support thereby, each pair of first and second contact members being adapted for connecting a replaceable fuse;

    (c) means for connecting the contact members in a powered circuit wherein each fuse, when connected between a respective pair of the contact members, is electrically series-connected with a load of the circuit, each load having a rated current, at least some of the first contact members of the array being powered independently of others of the first contact members;

    (d) a plurality of illuminators electrically connected within the housing for displaying open circuit conditions of corresponding ones of the fuses when the contact members are connected in the powered circuit, one side of each illuminator being connected to a respective second contact member of the array;

    (e) means for limiting electrical current in the illuminators to a minor fraction of the rated current of the corresponding loads; and

    (f) a detector driver circuit for sensing activation of any of the illuminators, the detector driver circuit being adapted for signalling an external circuit, the detector driver circuit including means for preventing false activation of the external circuit in the event that only a subset of the first contact members are powered.

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