Solenoid-operated safety valve device particularly for a...

Details Solenoid-operated safety valve device particularly for a... Solenoid-operated safety valve device particularly for a...

2008-04-08

2008-04-08

Lee, Kevin (Department: 3753)

Fluid handling

Systems

Flow path with serial valves and/or closures

C251S030010

Reexamination Certificate

active

10599889

ABSTRACT:
The solenoid valve device (1) comprises a duct (3, 10, 10′, 4) with an inlet (3) and an outlet (4) and in which are formed first and second valve seats (5, 6) in series with one another, each between a respective inlet chamber (8, 12) and an associated outlet duct (9, 13), and a first and second interception solenoid valve device (16, 17) associated with the first and second valve seat (5, 6) respectively, and each comprising a respective movable shutter (18; 28) cooperating with one of the seats (5; 6) in the associated inlet chamber (8; 12). Each interception solenoid valve device (16, 17) comprises an electromagnetic control portion (35, 50; 36, 50) which includes a movable core (35, 36) the position of which is controlled by a control winding (50; 50). The electromagnetic control portions (35, 50; 36, 50) of the interception solenoid valve devices (16, 17) are disposed parallel to an intermediate portion (10) of the duct (3, 10, 10′, 4) lying between the said valve seats (5, 6) with the respective cores (35, 36) aligned and movable in opposite directional senses in a direction essentially parallel to the axis of the intermediate duct portion (10) within a single winding or control coil (50).

REFERENCES:
patent: 4697619 (1987-10-01), Tiefenthaler
patent: 26 00 560 (1977-07-01), None
patent: 0 819 918 (1998-01-01), None

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