| 主权项 |
1. A valve seat puller for removing a valve seat from a pump wherein said valve seat has an outer diameter, a bottom face, an inner diameter, an aperture defined by said inner diameter, and a top face, said valve seat puller comprising:
a puller shaft having a top, a threaded bottom, and a length defined between said top and said bottom; a spring catch having a top axially positioned on said length of said puller shaft length and a one-piece construction comprising:
a hollow cylinder having a top, a bottom, a wall, a plurality of slits on a length of said wall starting below said top thereby forming a plurality of segments protruding down from said top wherein said plurality of segments each have a distal end forming said bottom of said spring catch and wherein each said distal end is a J-shaped hook adapted to bend inward when contacting said top face of said valve seat, pass through said inner diameter of said valve seat, and unbend after passing through said seat valve inner diameter wherein said J-shaped hooks can engage said bottom face of said valve seat for lifting said valve seat from said pump; a sleeve axially positioned on said puller shaft said length and adapted to hold said top of said spring catch while allowing said spring catch to float up and down relative to said puller shaft said length; and a bottom nose axially aligned with said puller shaft, having a recessed lip portion comprising a flat surface perpendicular to said length of said puller shaft and having an outer diameter, a vertical surface parallel to said length of said puller shaft and having a smaller outer diameter than said outer diameter of said flat surface, adapted to trap said J-shaped hooks against said vertical surface of said lip portion and on said flat surface of said recessed lip portion while said J-shaped hooks engage said bottom face of said of said valve seat, and having threads for removably threading onto said threaded bottom of said puller shaft. |
