Apparatus for inserting valve seats in valve bodies

Details Apparatus for inserting valve seats in valve bodies Apparatus for inserting valve seats in valve bodies

1989-07-21

1990-09-04

Watson, Robert C.

Metal working

Means to assemble or disassemble

To apply or remove a resilient article

29252, B23P 1904

Patent

active

049532766

ABSTRACT:
An apparatus for inserting a resilient valve seat into a valve body, the valve body being of a type having a radially inwardly projecting annular rib which defines a bore through the valve body, the valve seat being generally annular and having an annular web portion, a first annular flange portion projecting radially outwardly from a first end of the web portion and a second annular flange portion projecting radially outwardly from a second end of the web portion to define an annular, radially outwardly opening channel for receiving the rib, the apparatus including a frame which has an opening and having a plate for positioning a valve body adjacent the opening such that the bore in the valve body and the opening in the frame are in register, a plunger assembly slidably mounted in the frame, the plunger assembly having a mounting head and a plurality of circumferentially spaced grabbing elements secured to the mounting head, the grabbing elements including projections to engage one of the annular flange portions of the valve seat such that at the mounting head is moved in a given direction in the frame, the grab elements engage the rib in the valve body resulting in a distortion or folding of the valve seat such that the engaged annular flange portion can pass through the bore defined by the rib.

REFERENCES:
patent: 2468286 (1979-04-01), Behlert
patent: 2961755 (1960-11-01), Prince
patent: 4389763 (1983-06-01), Marsh

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