Fluid handling – Processes – Cleaning – repairing – or assembling
Patent
1994-11-07
1995-09-19
Hepperle, Stephen M.
Fluid handling
Processes
Cleaning, repairing, or assembling
137315, 137595, 25112915, 251367, F16K 3106
Patent
active
054508711
ABSTRACT:
The invention contemplates a method of making a valve body for a magnetically actuated twin-valve system, wherein the valve body comprises a body block of three relatively thick slabs vertically bonded to each other and to the consolidated height of their combined thicknesses, the first and lower most slab being of non-magnetic material, the second and intermediate slab being of magnetic material, and the third and uppermost slab being of non-magnetic material; the method comprises the steps of (a) inertia-welding said slabs to each other; and (b) machining first and second spaced valve-member guide bores through said second and third slabs and through at least a portion of said first slab, with a valve-seat opening at the otherwise closed lower end of each bore of said first slab and with independent lateral-access inlet-port communication with the respective bores in said first slab.
REFERENCES:
patent: 3064936 (1962-11-01), Strauss
patent: 3073341 (1963-01-01), Schernekau
patent: 3472277 (1969-10-01), Reinicke
patent: 3495604 (1970-02-01), Trask
patent: 3534757 (1970-10-01), Doherty
patent: 3661178 (1972-05-01), Wichmann
patent: 5269490 (1993-12-01), Fujikawa et al.
Hepperle Stephen M.
Marotta Scientific Controls, Inc.
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