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Requalification controller for durables

  • US 6,427,090 B1
  • Filed: 08/18/1999
  • Issued: 07/30/2002
  • Est. Priority Date: 08/18/1999
  • Status: Expired due to Fees
First Claim
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1. A system for controlling a time at which a durable item used in a manufacturing process, the utility of which expires after a first predetermined number of first events, is requalified for use, said system comprising:

  • a first counter for counting occurrences of said first events to provide a first counter count;

    a device for determining if said first counter count exceeds a warning level;

    a device for determining if said first counter count is less than a limit level;

    a device for initiating a preparatory requalification activity while the durable item is still in use; and

    a requalification device for initiating requalification of said durable item whereby a time to complete the preparatory requalification activity is deducted from a total time the durable item is unavailable for use during requalification.

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