Patent ID: 9309978
Filing Date: 2016-04-12
CPC Classification: F04B,F16K,Y10T

Claim Text:
1. A valve member for a poppet valve, comprising: a cylindrical valve stem with a first end and terminating in a second end axially opposing the first end along a longitudinal axis, the cylindrical valve stem having an outside surface defining a stem diameter; a valve head disposed at the first end of the cylindrical valve stem, the valve head having a maximum diameter defining a guard area of the valve head, the maximum diameter of the valve head greater than the stem diameter; a circular face formed on the valve head opposite the cylindrical valve stem, the circular face having a perimeter and a face diameter; a sealing surface disposed around the perimeter of the circular face, the sealing surface including a rounded transition ring disposed between the perimeter of the circular face and the maximum diameter of the valve head; a socket having a socket diameter and extending from the second end of the cylindrical valve stem, the socket defining an opening at the second end with a socket perimeter configured to receive a spring therein, and the socket diameter tapering from the socket perimeter to a spring landing of the cylindrical valve stem configured to seat the spring; and a bevel from the socket perimeter to the outside surface of the cylindrical valve stem.