(19)
(11) EP 0 225 379 A1

(12)

(43) Date of publication:
16.06.1987 Bulletin 1987/25

(21) Application number: 86903965.0

(22) Date of filing: 05.06.1986
(51) International Patent Classification (IPC): 
F16K 31/ 02( . )
G05D 16/ 20( . )
F16K 31/ 00( . )
H01L 41/ 09( . )
(86) International application number:
PCT/US1986/001220
(87) International publication number:
WO 1986/007429 (18.12.1986 Gazette 1986/27)
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE

(30) Priority: 11.06.1985 US 19850743720

(71) Applicant: ARTHUR D. LITTLE, INC.
Cambridge, Massachusetts 02140-2390 (US)

(72) Inventor:
  • LAWRENCE, Willis, T.
    Winchester, MA 01890 (US)

(74) Representative: Warren, Anthony Robert, et al 
BARON & WARREN, 18 South End, Kensington
London W8 5BU
London W8 5BU (GB)

   


(54) APPARATUS FOR ELECTRICAL CONTROL OF RATE OF FLUID FLOW