Railway switches and signals – Switch stands – Structural types
Reexamination Certificate
2011-03-22
2011-03-22
Shriver, II, J. Allen (Department: 3617)
Railway switches and signals
Switch stands
Structural types
C246S393000
Reexamination Certificate
active
07909294
ABSTRACT:
A switch stand for a railroad switch permits the switch to be locked against unauthorized movement of the switch. The switch stand permits trailing operation, even if locked. Passage of the rolling stock through the locked switch is permitted by allowing temporary movement of switch points of the switch when contacted by wheels of the rolling stock. The switch stand can also be unlocked and the position of the switch points changed manually to an alternate position from the normal or set position and then locked against unauthorized movement of the switch.
REFERENCES:
patent: 1267998 (1918-05-01), Forth
patent: 1381732 (1921-06-01), Morrison
patent: 1529051 (1925-03-01), Wyatt
patent: 1569694 (1926-01-01), Zipperer
patent: 1783283 (1930-12-01), Eastburn
patent: 1877276 (1932-09-01), Davidson
patent: 2082133 (1937-06-01), Leroy
patent: 2092828 (1937-09-01), Bone
patent: 2098796 (1937-11-01), Shirley
patent: 2449239 (1948-09-01), Magnus
patent: 2669858 (1954-02-01), Bone
patent: 3427448 (1969-02-01), Redelman
patent: 3483368 (1969-12-01), Redelman et al.
patent: 6164601 (2000-12-01), Scheer et al.
patent: 6168120 (2001-01-01), Pease
patent: 7267304 (2007-09-01), Scheer
patent: 2006/0208137 (2006-09-01), Scheer
patent: 2010/0025546 (2010-02-01), Rivas
Bracewell & Giuliani LLP
Shriver II J. Allen
Smith Jason C
LandOfFree
Modular railroad switch stand does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Modular railroad switch stand, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modular railroad switch stand will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2705302