초록 ▼

An apparatus for pulling a valve member from a pump. The apparatus comprises a puller stem containing external threads and a bushing having an inner surface, and wherein the puller stem is disposed through the bushing. Also included is a first halve nut containing first internal threads, and a secon

An apparatus for pulling a valve member from a pump. The apparatus comprises a puller stem containing external threads and a bushing having an inner surface, and wherein the puller stem is disposed through the bushing. Also included is a first halve nut containing first internal threads, and a second halve nut also containing internal threads. The first end of the bushing will abut both the first halve nut and the second halve nut. The apparatus further includes a sleeve having an outer portion and an inner portion, and wherein the inner portion has the threaded stem therethrough. The sleeve will engage the first halve nut and the second halve nut. In the preferred embodiment, the apparatus further comprises a first lip attached to the first halve nut and a second lip attached to the second halve nut. The sleeve contains a collar that is concentrically disposed about the sleeve, the collar having an overlapping leg that forms a chamber, and wherein the first and second lip are disposed within the chamber. The apparatus may further comprise a valve puller attached to the puller stem for engaging and pulling a plurality of the valve members from the pump. A method of removing a plurality of valves from a pump is also disclosed.

대표청구항 ▼

[ I claim:] [1.]1. 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 an

[ I claim:] [1.]1. 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.