Fluid-pressure and analogous brake systems – Multiple fluid-receiving devices – Multiple motors
Reexamination Certificate
2007-07-10
2007-07-10
Nguyen, Xuan Lan (Department: 3683)
Fluid-pressure and analogous brake systems
Multiple fluid-receiving devices
Multiple motors
C303S128000, C303S027000
Reexamination Certificate
active
11225109
ABSTRACT:
A brake controller for a locomotive includes a train brake pipe, a locomotive brake pipe, a brake cylinder, a control valve and a relay valve. The first control input of the relay valve is selectively connected to one of the output of the control valve and the locomotive brake pipe; and the second control input of the relay valve is selectively connected to the locomotive brake pipe when the control valve output is a release signal. A first electro-pneumatic valve, when activated, causes the control valve to be a release signal. An electronic controller is connected to a first pressure transducer for the locomotive brake pipe, a lead/trail mode switch and the first electro-pneumatic valve; and activates the electro-pneumatic valve for brake release pressures in the locomotive brake pipe when the mode switch is in the trail mode.
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Margeson Scott E.
Petitt D. Mark
Reynolds John M.
Root Kevin B.
Teifke Richard J.
Barnes & Thornburg LLP
New York Air Brake Corporation
Nguyen Xuan Lan
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