×

Irrigation valve with metal seat

  • US 3,967,808 A
  • Filed: 09/22/1975
  • Issued: 07/06/1976
  • Est. Priority Date: 09/22/1975
  • Status: Expired due to Term
First Claim
Patent Images

1. A fluid valve, comprising:

  • a valve body made of a plastic material and defining a flow passage therethrough with inlet and outlet conduits at opposite ends of the passage;

    a metal seat ring having a generally U-shaped cross-section defined by a seat portion and a pair of spaced-apart sidewalls extending from the seat portion, the sidewalls being embedded in the plastic valve body to position the seat portion around the flow passage between the inlet and outlet conduits, at least one of the sidewalls being non-parallel to a central axis of the ring;

    a valve closure member mounted in the valve body to be movable into seating engagement with the seat portion to close the valve; and

    means on the valve body and connected to the closure member for moving the closure member against and away from the seat portion to close and open the valve.

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