Valve seat puller

Details Valve seat puller Valve seat puller

1976-01-28

1976-11-09

Jones, Jr., James L.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

B23P 1904

Patent

active

039901394

ABSTRACT:
In one exemplar embodiment, a valve seat puller is disclosed utilizing a plurality of J-shaped hooks mounted for limited pivotal movement on a hook support block. The hook support block and J-shaped hooks are supported by a threaded rod extending through a central aperture in the support block and secured in place by a lock nut. The J-shaped ends of the hooks are spread to engage the lower rim of the valve seat. The threaded rod passes through an aperture in a pump support plate spaced above the hook support block and is secured to the pump support plate by a drive nut. By applying rotary motion to the rod or the drive nut, the rotary motion will be translated into vertical axial motion of the rod, thus applying a lifting force to the hooks and valve seat to free the seat.

REFERENCES:
patent: 1436081 (1922-11-01), Brockway
patent: 1589015 (1926-06-01), Lee
patent: 2052534 (1936-08-01), Quarles
patent: 2650419 (1953-09-01), Barbisch

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