Railway rolling stock – Special car bodies – Freight
Patent
1994-01-04
1995-08-08
Oberleitner, Robert J.
Railway rolling stock
Special car bodies
Freight
220324, 114203, B61D 3900
Patent
active
054389356
ABSTRACT:
A railroad car hatch cover assembly includes a ring which defines an opening in the railroad car body and a peripheral seal which is attached to the ring. There is a hatch cover for closing upon the ring and seal to close the car body opening. The hatch cover is hinged to the car body adjacent one side of the ring and on the opposite side there is a cam lock assembly which locks the hatch cover in a closing position upon the ring and seal. The cam lock assembly provides for three different locking positions. There is a full locked position in which the hatch cover is closed upon the ring and seal. There is an initial hatch cover release position in which the hatch cover is movable a limited distance away from the ring and seal. There is a full release position in which the cam lock permits full pivotal movement of the hatch cover about the hinge.
REFERENCES:
patent: 3217661 (1965-11-01), Kemp
patent: 3848912 (1974-11-01), Jensen et al.
patent: 4000703 (1977-01-01), Halliar
patent: 4365832 (1982-12-01), Treppler
patent: 4388873 (1983-06-01), Carleton et al.
patent: 4622902 (1986-11-01), Miller
Dev-Mark, Inc.
Morano S. Joseph
Oberleitner Robert J.
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