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Draining pump system and drainage preference operating method therefor

  • US 5,287,875 A
  • Filed: 11/25/1991
  • Issued: 02/22/1994
  • Est. Priority Date: 11/27/1990
  • Status: Expired due to Term
First Claim
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1. In a draining pump system which includes a drain pump for discharging drained water, flowing into an influent tank, to a river or other watercourse,a drainage preference operating method for such a draining pump system comprises the steps of evaluating the necessity of drainage when a failure occurs in said draining pump system, and determining conditions of continuing or stopping operation of said drain pump on the basis of said evaluation.

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