Fluid handling – Systems – Sequentially closing and opening alternately seating flow...
Patent
1987-06-25
1988-09-27
Nilson, Robert G.
Fluid handling
Systems
Sequentially closing and opening alternately seating flow...
F16K 1110
Patent
active
047734477
ABSTRACT:
The present invention discloses an electromagnetic valve for use in a railroad car slip prevention control of the brake system. Such electromagnetic valve having three-position control capability. The control position is selected based on an excitation current supplied to a solenoid valve.
REFERENCES:
patent: 3332445 (1967-07-01), Allen
patent: 3525555 (1970-08-01), Meyer
patent: 4499921 (1985-02-01), Stoll
Ikeda Mitsuhiro
Imanaka Asaji
Nilson Robert G.
Nippon Air Brake Co., Ltd.
Ray, Jr. J. O.
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