Patents Assigned to Water Control Products/N.A., Inc.
  • Pressure flush tank for toilets
    Patent number: 4233698
    Abstract: A pressure flush tank assembly for toilets which includes a combination of a flush valve coordinated with an air induction valve and refill valve to insure successful repetitive operation, together with a construction which prevents back-flow in the event of a negative line pressure and an initial outflow control to reduce noise and eliminate back bounce from the toilet bowl.
    Type: Grant
    Filed: January 28, 1977
    Date of Patent: November 18, 1980
    Assignee: Water Control Products/N.A., Inc.
    Inventor: Raymond B. Martin