Patent ID: 6227225
Filing Date: 2001-05-08
Classification: F16K,Y10T

Abstract:
A method of removing a first valve seat and a second valve seat with a device, the device comprising a threaded bolt containing external thread means; a puller plate having an inner surface which contains said threaded stem therethrough, and wherein said bushing has a first end and a second end; a first halve nut containing a first internal thread means partially engaging said external thread means, and a second halve nut containing a second internal thread means, and wherein said first end of said bushing abuts said first halve nut and said second halve nut; a sleeve having an outer portion and an inner portion, and wherein said inner portion has said threaded bolt therethrough; and wherein said sleeve engages said first halve segment and said second halve segment; a valve seat puller attached to said threaded stem; and wherein the method comprises:placing said puller plate on an opening of a pump;advancing said first halve nut and said second half nut about said threaded bolt;abutting said angled end of said first halve nut against said puller plate;abutting said angled end of said second halve nut against said puller plate;exerting a rotating force on said sleeve;closing said first halve nut and said second half nut about said threaded bolt;rotating said threaded bolt;passing said threads of said threaded bolt through said first internal thread means and said second internal thread means;advancing said valve seat puller;engaging the first valve seat with said valve seat puller.