Automatic release hand brake control system
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United States of America Patent
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Aug 5, 2014
Grant Date -
May 12, 2011
app pub date -
Nov 10, 2009
filing date -
Nov 10, 2009
priority date (Note) -
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Abstract
In a rail vehicle hand brake having a release activated by a pneumatic cylinder, the present control system includes a manual valve having an output connected to a source of pressure at an input when manually activated. A volume is to be charged by the source of pressure. A choke connects the volume to exhaust. The volume and the choke prolong the time the source of pressure is connected to the pneumatic cylinder after the manual valve is activated.
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