Tamperproof gate mechanism
AssigneeSiemens Mobility GmbH
InventorsDaniel Spencer, Brian Joseph Hogan, Richard C. Bohme
Life of this patent
Estimating the term…
Abstract
A crossing gate mechanism (300) includes a linkage (320) operably coupled to a crossing gate arm (310), wherein the crossing gate arm (310) is movable between a vertical position (VP) and a horizontal position (HP) via the linkage (320), wherein the linkage (320) is in a first position when the crossing gate arm (310) is in the vertical position (VP) and in a second position when the crossing gate arm (310) is in the horizontal position (HP), and wherein the linkage (320) in the second position mechanically locks the crossing gate arm (310) in the horizontal position (HP).
Claims21
-20. (canceled)
A crossing gate mechanism comprising:
- a linkage operably coupled to a crossing gate arm,
- wherein the crossing gate arm is movable between a vertical position and a horizontal position via the linkage,
- wherein the linkage is in a first position when the crossing gate arm is in the vertical position and in a second position when the crossing gate arm is in the horizontal position, and
- wherein the linkage in the second position mechanically locks the crossing gate arm in the horizontal position.
A railroad crossing gate comprising:
- a crossing gate arm, and
- a gate mechanism with a linkage operably coupled to the crossing gate arm,
- wherein the crossing gate arm is movable between a vertical position and a horizontal position via the linkage,
- wherein the linkage is in a first position when the crossing gate arm is in the vertical position and in a second position when the crossing gate arm is in the horizontal position, and
- wherein the linkage in the second position mechanically locks the crossing gate arm in the horizontal position.
Dependencies are inferred from the claim text.