The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 29, 1992
Filed:
Aug. 10, 1990
Ernest W Lobb, Aurora, IL (US);
Bruce A Robbins, Aurora, IL (US);
David L Depew, Boling Brook, IL (US);
Svedala Industries, Inc., Milwaukee, WI (US);
Abstract
A railroad car positioning apparatus for positioning a railroad car, the railroad car having at least two axles spaced apart along a longitudinal axis of the railroad car, each of the at least two axles being provided with wheels on the opposing ends thereof, the railroad car positioning device apparatus including: a carriage member; a first dog member mounted on the carriage member and a second dog member mounted on the carriage member; a device for positioning the first dog member and for extending the first dog member to at least a first position wherein the first dog member extends from the carriage member to at least the height of the axle members of the railroad car for contacting at least one of the axle members of the railroad car; a device for selectively positioning the second dog member and for extending the second dog member to at least either of a first position wherein the first dog member extends from the carriage member to at least the height of the axle members of the railroad car for contacting at least one of the axle members of the railroad car, and a second position wherein the second dog member is fully disposed beneath the height of the axle members of the railroad car and a displacement apparatus for displacing the carriage member in a direction parallel to the longitudinal axis of the railroad car and for exerting a force between at least one of the first and second dog members and at least one of the axle members of the railroad car and for thereby moving the railroad car.