Brakes – Operators – Fluid pressure
Reexamination Certificate
2005-12-06
2005-12-06
Butler, Douglas C. (Department: 3683)
Brakes
Operators
Fluid pressure
C188S219100, C188S107000, C188S033000
Reexamination Certificate
active
06971488
ABSTRACT:
A brake rigging comprising first and second brake beams. A brake shoe assembly including a brake shoe adjacent each end of brake beams. A first force transfer mechanism connected intermediate first and second ends thereof to the first brake beam for moving a brake shoe into engagement with confronting wheels during braking. A second force transfer mechanism connected intermediate first and second ends thereof for moving brake shoes into engagement with confronting wheels during braking. A first force transmitting device engageable with such second brake beam for rotating such second force transfer mechanism. An adjustable length second force transmitting device having one end connected to the first force transfer mechanism and another end connected to the second force transfer mechanism and an apparatus engageable with such second force transmitting device and a portion of such brake rigging for changing a length of the second force transmitting device.
REFERENCES:
patent: 3780837 (1973-12-01), Haydu
patent: 5701975 (1997-12-01), Hawryszkow
Ring Michael E.
Zemyan James M.
Butler Douglas C.
James Ray & Associates
Westinghouse Air Brake Technologies Corporation
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