Patents Assigned to Venn Co., Ltd.
  • Ping-free water hammer arrester
    Patent number: 5385172
    Abstract: A water hammer arrester comprises a cylindrical body housing a piston for free sliding reciprocal movement and a connector for connection to a water conduit system which carries water under pressure. An abutment-bumper combination is interposed between piston and connector to avoid the ping which would be produced is these two elements of the assembly were to collide during reciprocation of the piston.
    Type: Grant
    Filed: January 3, 1994
    Date of Patent: January 31, 1995
    Assignees: Precision Plumbing Products, Inc., Venn Co., Ltd.
    Inventors: Charles H. Perrott, Suzuki Kouichi