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Water closet flushing apparatus

  • US 5,315,719 A
  • Filed: 07/31/1992
  • Issued: 05/31/1994
  • Est. Priority Date: 09/01/1989
  • Status: Expired due to Fees
First Claim
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1. A flushing water supply method for a water closet, comprising the steps of:

  • detecting a pressure of flushing water for a water closet along a water supply passage, controlling the opening of said water supply passage for adjusting the instantaneous rate of water flow through said passage on the basis of the detected pressure so that a predetermined water supply amount is supplied to a water closet, and wherein the controlling step includes calculating an instantaneous flow amount of flushing water in the water supply passage on the basis of the detected pressure, comparing said calculated instantaneous flow amount with a predetermined instantaneous flow amount and determining their difference, calculating a necessary degree of opening of the water supply passage on the basis of the difference in said calculated and predetermined instantaneous flow amounts for causing water flow at said pre determined instantaneous flow amount, and opening the water supply passage for a predetermined opening time while maintaining the calculated degree of opening and then closing the water supply passage.

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