Patent ID: 6223435
Filing Date: 2001-05-01
Classification: B23P,B67C,Y10T

Abstract:
A process for manufacturing a valve body for a counter-pressure filling machine from a single piece of bar stock, including the following steps:a first exterior lathing step in which a solid cylindrical stainless bar stock is lathed to form a cylindrical upper flange, mid-section, and lower mass;a second drilling step along an axis of the bar stock to form a central reservoir with an upwardly protruding neck;,a third drilling step to drill a counter-pressure gas passage through the neck;a fourth exterior lathing step to form a plurality of annular tiers along the lower mass;a fifth machining step of reducing one of said annular tiers to said mid-section to leave a port block section protruding from said mid-section;a sixth drilling step to form a pair of threaded couplings in said port block section;a seventh machining step to adapt said flange for connection to an existing filling machine; andan eighth step of chamfering the lower mass to form a frustro-conical outlet end with a plurality of oblong liquid discharge outlets in fluid communication with said reservoir.