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Rate-of-change switches and controllable apparatus

  • US 20010048291A1
  • Filed: 03/07/2001
  • Published: 12/06/2001
  • Est. Priority Date: 03/09/2000
  • Status: Active Grant
First Claim
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1. A rate-of-change switch which comprises:

  • a transducer that produces an output in response to an input;

    a differentiator being operatively connected to said output; and

    means, being operatively connected to said differentiator, for performing a first switching function.

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