Vent valve arrangement and method of making the same
AssigneeRobertshaw Controls Company
InventorBoyd P. Sliger
Life of this patent
Estimating the term…
Abstract
A vent valve arrangement for a thermostatically operated valve construction that has a valve member for opening and closing a valve seat in response to temperature sensed by a temperature responsive device that is interconnected to the valve member to move the same relative to the valve seat whereby the vent valve arrangement permits fluid flow through the valve seat when the valve seat is closed, the vent valve arrangement having a one-piece valve seat member provided with a valve seat opening and a chamber for containing a movable valve member therein with that movable valve member opening and closing the valve seat opening.
Claims7
A method of making a vent valve arrangement comprising the steps of forming a one-piece valve seat member to have a valve seat opening and a chamber for containing a movable valve member therein that will open and close said valve seat opening, disposing an unattached ball valve member in said chamber through an open end of said one-piece valve seat member, and forming said valve seat member to contain said valve member in said chamber by forming said one-piece valve seat member to have a single integral tab extension disposed adjacent said open end to contain said valve member in said chamber and by bending said single integral tab extension into substantially an L-shaped configuration with one leg thereof being an extension of said open end and the other leg thereof being disposed in front of and spaced outwardly from said open end.
Dependencies are inferred from the claim text.