Patent ID: 9222588
Filing Date: 2015-12-29
Classification: B33Y,F16K,Y10T

Abstract:
1. A tip-resistant valve plug comprising a valve head, first and second retention legs, and an anti-tip fin, wherein: the valve head defines a fluid barrier; the anti-tip fin and the retention legs extend from the same side of the valve head; and (i) the anti-tip fin comprises a groove that allows the valve head to flex along a longitudinal fin axis; (ii) the anti-tip fin extends from the side of the valve head to a fin height dimension that is greater than a relief spring compression dimension caused by the tip-resistant valve moving between a closed position and an open position; or (iii) the valve head has a smaller moment of inertia evaluated in a direction the anti-tip fin extends across the valve head than a moment of inertia evaluated in a direction normal to the direction the anti-tip fin extends across the valve head.