×

Water backup preventing system and monitoring system therefor

  • US 5,161,911 A
  • Filed: 03/05/1991
  • Issued: 11/10/1992
  • Est. Priority Date: 07/05/1988
  • Status: Expired due to Fees
First Claim
Patent Images

1. A water backup preventing system for a given area having a ground buried sewer line for receiving rain and other water, the sewer line being incapable of carrying without backup thereof a given flow rate of water which can cause basement flooding and being provided at a given point therealong with at least one overflow opening into which opening water which cannot be handled by the sewer line will raise and overflow, at least one water storage space into which the overflow water from said opening is to be directed and temporarily stored, said water storage space having a volume to store water which cannot otherwise be accommodated by said sewer line when said flow rate of water occurs, means for directing water from said overflow opening to said water storage space, said water storage space having an outlet for removing water therefrom, and a first backflow preventing valve with apparatus for automatically closing the sewer line when a backflow condition develops downstream therefrom and for opening the sewer line to permit flow of water through the sewer line when such condition does not exist or abates, said overflow opening being on the upstream side of said backflow preventing valve.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×