Importance

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Abstract

The sphere is a separate part that is assembled into the valve during the assembly process. A resilient spring disc acts on the sphere to hold the sphere in abutment with the tip end of the armature as the armature reciprocates to open and close the valve. The disc is also a separate part that is assembled into the valve during the assembly process. The outer margin of the disc rests on a raised ledge without attachment to the valve body while the sphere occupies a central circular void in the disc whose diameter is less than that of the sphere. The valve seat is frustoconical, and the disc maintains the sphere at least approximately concentric with the seat so that when the valve is operated closed any misalignment of the sphere to the seat is taken out by the camming action of the seat on the sphere as the valve closes.

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First Claim