Patent ID: 6783113
Filing Date: 2004-08-31
Classification: F16K,Y10T

Abstract:
A valve comprising:(a) a body forming a valve bore; (b) a closing means pivotally mounted to said body within said valve bore; (c) a valve stem extending from said body for pivotally rotating said closing means to open and close said valve bore, said valve stem having desired predetermined side dimensions and a top surface; (d) a keyway extending vertically along said valve stem; (e) a valve handle for turning said valve stem and thereby said closing means said valve handle having a bore conforming to the shape of said valve stem; and (f) a key extending into said bore of said valve handle whereby said handle may be attached to said valve stem only in a single position with said key fitted in said keyway whereby the status of said valve, whether open or closed, is indicated by the position of said handle.