Railway rolling stock – Special car bodies – Freight
Patent
1985-03-27
1989-12-26
Cherry, Johnny D.
Railway rolling stock
Special car bodies
Freight
220314, 2922565, 292DIG49, B61D 3900
Patent
active
048890561
ABSTRACT:
A generally circular cover for closing a hatch opening in a railroad car hopper is connected to a diametral support bar for limited pivotal movement to provide uniform gasket loading between the cover member and the hatch coaming. One end of the support bar is hinged to the hopper roof and the opposite end includes a cam surface and laterally projecting retaining pins for engagement with a latch member. The latch member has a somewhat channel shaped portion pivotally connected to a link which, in turn is also pivotally secured to the hopper roof. The link includes opposed trunnion portions which are engageable with the cam surface to forciby engage the support bar to hold the hatch cover closed. The latch member includes open ended slots which are engageable with the retaining pins in such a way that the latch member will not disengage from the support bar when the latch member is swung to the release position if fluid pressure within the car hopper is sufficient to force the cover toward an open position.
REFERENCES:
patent: 1260299 (1918-03-01), Banes
patent: 2003927 (1935-06-01), Ecoff
patent: 2745362 (1956-05-01), Lunde
patent: 2901279 (1959-08-01), MacNaught et al.
patent: 3217661 (1965-11-01), Kemp
patent: 3344947 (1967-10-01), Gallup
patent: 3433357 (1969-03-01), Nolte
patent: 3848912 (1974-11-01), Jensen et al.
patent: 3888528 (1975-06-01), Jericijo
patent: 4000703 (1977-01-01), Halliar
patent: 4053177 (1977-10-01), Stammreich et al.
patent: 4126094 (1978-11-01), Zimmehe et al.
patent: 4159137 (1979-06-01), Richter
patent: 4239008 (1980-12-01), Conlon
patent: 4248160 (1981-02-01), Carney, Jr. et al.
patent: 4307670 (1981-12-01), Nadherny
patent: 4365832 (1982-12-01), Treppler
patent: 4388873 (1983-06-01), Carleton et al.
patent: 4441431 (1984-04-01), Carney, Jr. et al.
patent: 4461219 (1984-07-01), Bateson
Cherry Johnny D.
Hoge Gary C.
Trinity Industries Inc.
LandOfFree
Cover and latching mechanism for rail car loading hatch does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cover and latching mechanism for rail car loading hatch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cover and latching mechanism for rail car loading hatch will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1572445