Valves and valve actuation – Electrically actuated valve – Having means to produce proportional flow
Reexamination Certificate
2006-06-06
2006-06-06
Bastianelli, John (Department: 3751)
Valves and valve actuation
Electrically actuated valve
Having means to produce proportional flow
C251S129190, C251S337000
Reexamination Certificate
active
07055798
ABSTRACT:
A proportional solenoid control valve comprises a flat square spring which is wide in maintaining width with respect to displacement of a spring having a greater spring constant, so that accurate control of fluid is realized. The flat square spring has four tubs and is supported with respect to a step face with outer peripheral section thereof. The valve further comprises a sealing mechanism loaded with rubber resilience compensates instability of armature construction and resilient sealing section. The spring constant of the flat square spring is improved by strengthening the magnetic force, thus hysteresis can be made to be smaller.
REFERENCES:
patent: 4085921 (1978-04-01), Ueda et al.
patent: 4732362 (1988-03-01), Morioka et al.
patent: 4890815 (1990-01-01), Hascher-Reichl et al.
patent: 4930747 (1990-06-01), Nakamura
patent: 5232196 (1993-08-01), Hutchings et al.
patent: 6073908 (2000-06-01), Koga et al.
patent: 6220569 (2001-04-01), Kelly
patent: 6336621 (2002-01-01), Ii et al.
Bastianelli John
Global IP Counselors
Kojima Instruments Inc.
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