Railroad car coupler centering device

Railway draft appliances – Cushioned – Radially movable

Reexamination Certificate

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Reexamination Certificate

active

07665622

ABSTRACT:
A railroad car coupler centering device including in one embodiment a spreader beam mountable to the striker at one end of a railroad car, a right side centering spring rotatably connected to the spreader beam by a hinge, and a left side centering spring rotatably connected to the spreader beam by a hinge. The first or right side centering spring is moveable to and between a coupler engaged position and a coupler disengaged position. In the coupler engaged position, the right side centering spring is positioned to engage the right side of the coupler and to bias the coupler to a central position. In the coupler disengaged position, the right side centering spring allows the coupler to move from the center position to the right. Similarly, the left side centering spring is moveable to and between a coupler engaged position and a coupler disengaged position. In the coupler engaged position, the left side centering spring is positioned to engage the left side of the coupler and to bias the coupler to the central position. In the coupler disengaged position, the left side centering spring allows the coupler to move from the center position to the left.

REFERENCES:
patent: 2808906 (1957-10-01), Busch
patent: 3365078 (1968-01-01), Hathorn et al.
patent: 3445005 (1969-05-01), Kulieke, Jr. et al.
patent: 3642149 (1972-02-01), Chierici et al.
patent: 3809251 (1974-05-01), Chierici et al.
patent: 3933252 (1976-01-01), Murphy et al.
patent: 4003316 (1977-01-01), Monselle
patent: 4030613 (1977-06-01), Chierici
patent: 4120404 (1978-10-01), Chierici et al.
patent: 4131069 (1978-12-01), List
patent: 4133434 (1979-01-01), Chierici et al.
patent: 4244297 (1981-01-01), Monselle
patent: 4248158 (1981-02-01), Chierici et al.
patent: 4455946 (1984-06-01), List
patent: 4655143 (1987-04-01), List
patent: 4771703 (1988-09-01), Brodeur
patent: 4784068 (1988-11-01), Burke
patent: 4889054 (1989-12-01), List
patent: 4913062 (1990-04-01), Burke
patent: 4938152 (1990-07-01), List
patent: 5005489 (1991-04-01), Terlecky
patent: 5031544 (1991-07-01), Braemert et al.
“High-cube cars have created a market for coupler positioning devices” published in Railway Locomotives and Cars, Jan. 1973.
Holland Coupler Positioner brochure published by Holland Freight Equipment Div. prior to Dec. 15, 2005.
“A Users Guide to . . . ” published in The Car and Locomotive Cyclopedia prior to Dec. 15, 2005.

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