Supplemental shunting device indicator
AssigneeNational Railroad Passenger Corporation
InventorDavid H. Weiss
Life of this patent
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Abstract
A supplemental shunting device indicator (SSDI) for use with respect to a shunting device for a railroad. The SSDI comprises a housing. The housing comprises a light, a clamp for surrounding at least a portion of the shunting device, a power supply, and a current-sensing switch configured to electrically connect the power supply and the light in response to detection of a current.
Claims20
A supplemental shunting device indicator (SSDI) for use with respect to a shunting device for a railroad, the SSDI comprising:
- a housing, the housing comprising:
- a light;
- a clamp for surrounding at least a portion of the shunting device;
- a power supply;
- and
- a current-sensing switch configured to electrically connect the power supply and the light in response to detection of a current.
A supplemental shunting device indicator (SSDI) for use with respect to a shunting device for a railroad, the SSDI comprising:
- a housing, the housing comprising:
- a speaker;
- a clamp for surrounding at least a portion of the shunting device;
- a power supply;
- and
- a current-sensing switch configured to electrically connect the power supply and the speaker in response to detection of a current.
A method of using a supplemental shunt device indicator (SSDI) on a shunting device for a railroad, the SSDI comprising a housing having a light, a clamp for surrounding at least a portion of the shunting device, a power supply, and a current-sensing switch configured to electrically connect the power supply and the light in response to detection of a current, the method comprising:
- attaching a shunting device between rails of a track circuit;
- and
- attaching the SSDI to the shunting device.
Dependencies are inferred from the claim text.