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Automatic device for the detection and shutoff of excess water flow in pipes

  • US 5,409,037 A
  • Filed: 06/06/1994
  • Issued: 04/25/1995
  • Est. Priority Date: 06/06/1994
  • Status: Expired due to Term
First Claim
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1. A readily detachable fluid shutoff device for stopping the flow of excess fluid in plumbing pipes of a plumbing pipe system, said fluid shutoff device comprising a detachable acoustic flow monitor means disposed outside said plumbing pipe for sensing the flow of fluid through said pipe, a control means for determining flow duration time of the continuous flow of fluid sensed by said acoustic flow monitor means and a storage means to store a comparison shutoff time within said control means, a detachable value actuating means activated by said control means when flow duration time exceeds comparison shutoff time stored by said control means, a plumbing pipe valve means activated in response to said detachable valve actuating means whereby plumbing pipe system modifications are not required in order to stop the flow of excess fluid in said plumbing pipes.

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