Patent ID: 8752809
Filing Date: 2014-06-17
Classification: F16K,Y10T

Abstract:
1. A coupling apparatus for use with fluid valves, comprising: an expansion pin to be disposed in a receiving bore defined by a first aperture of a valve shaft and a second aperture of a closure member, wherein the first and second apertures are to be coaxially aligned when the valve shaft is coupled to the closure member, wherein the receiving bore is configured to form an axis that is non-parallel relative to a fluid engaging face of the closure member; a first tapered pin being non-threaded and disposed in a first opening of the expansion pin adjacent a first end of the expansion pin; and a second tapered pin being non-threaded and disposed in a second opening of the expansion pin adjacent a second end of the expansion pin, wherein the first tapered pin causes the expansion pin to expand at a first location when the first tapered pin is disposed in the first opening and the second tapered pin causes the expansion pin to expand at a second location different than the first location when the second tapered pin is disposed in the second opening.