Fluid handling – Systems
Patent
1980-08-28
1986-06-10
Schwadron, Martin P.
Fluid handling
Systems
137563, 13762547, 137876, 51317, F17D 114, F16K 504, B24B 5702
Patent
active
045937168
ABSTRACT:
A control valve assembly for controlling the flow of abrasive slurry from a supply pump, directing a selected amount of abrasive slurry to the lapping wheel of an associated lapping machine, and recirculating the remainder of the supply of abrasive slurry to the supply pump.
REFERENCES:
patent: 2839877 (1958-06-01), Boettcher
patent: 3505766 (1970-04-01), Boettcher
patent: 3640308 (1972-02-01), Bydal
patent: 4187882 (1980-02-01), Watson
patent: 4299553 (1981-11-01), Swaroop
Pigott, Jr. Charles F.
Rivell John A.
Schwadron Martin P.
Speedfam Corporation
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