Railways – Track layers
Patent
1990-09-28
1992-05-05
Oberleitner, Robert J.
Railways
Track layers
37104, 171 16, E01B 2706
Patent
active
051097753
ABSTRACT:
Apparatus for excavating ballast from a railroad bed adjacent to the cross ties of a railroad track and for cleaning the excavated ballast for return thereof to the railroad bed. The apparatus includes a vehicle for supporting a pair of excavating assemblies on opposite sides of the support vehicle and thus on opposite sides of the railroad track and a discrete cleaning station for each of the separate excavating assemblies. Each cleaning station is disposed for receiving and cleaning the ballast excavated by the associated excavating assembly.
REFERENCES:
patent: 865261 (1907-09-01), Mehaffey
patent: 2022150 (1935-11-01), Protzeller
patent: 2842069 (1958-07-01), McWilliams
patent: 2997001 (1961-08-01), Scheuchzer
patent: 3872929 (1975-03-01), Theurer et al.
patent: 4674208 (1987-06-01), Whitaker, Jr.
patent: 4705115 (1987-11-01), Whitaker, Jr.
patent: 4890557 (1990-01-01), Whitaker, Jr.
Kershaw John K.
McCray Philip C.
Knox Kershaw, Inc.
Morano S. Joseph
Oberleitner Robert J.
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