Patent ID: 6293299
Filing Date: 2001-09-25
Classification: F16K,Y10T

Abstract:
A device for limiting range of motion of a control stem of a single-handle mixing valve, the device comprising:(a) a guide template that defines the range of motion of the control stem, the guide template including;(i) a camming aperture disposed in the guide template, the camming aperture having a same general shape as the range of motion of the control stem, the control stem being positioned within the camming aperture when the guide template is cooperatively engaging onto the single-handle mixing valve, and(ii) a guide-cover key, the guide-cover key being integral to the guide template, the guide-cover key preventing any rotary movement of the guide template relative to the single-handle mixing valve,(b) an insert that further limits the range of motion of the control stem during engagement of the insert with the guide template, the insert including an insert-limiting edge, the insert-limiting edge reducing the size of the camming aperture during engagement of the insert with the guide template and reducing the flow volume through the single handle mixing valve during engagement of the insert and guide template with the single handle mixing valve; and(c) means for securely retaining the insert within the guide template to prevent any relative movement of the insert relative to the guide template.