Excavating – Railway graders
Patent
1995-04-25
1996-12-03
Melius, Terry Lee
Excavating
Railway graders
37405, 104 2, 1053111, B61D 730
Patent
active
055795935
ABSTRACT:
A railroad ballast spreading system is provided for rail cars used to spread ballast about the rails. A plowshare is mounted beneath the rail car and is supported by a bracket arm connected to the rail car. A curved linkage is also connected to between the rail car and the plowshare. A hydraulic motor or other pressure fluid motor is connected to an intermediate point of the linkage to pivotably move the plowshare from a lowered position for spreading the ballast to a raised, stowed position. The linkage includes a curved crank arm and a curved link arm such that the linkage passes the toggle point between the lowered and stowed position to increase the stability of the plowshare in the stowed position.
REFERENCES:
patent: 2272429 (1942-02-01), Philbrick
patent: 3019536 (1962-02-01), Kershaw
patent: 3305952 (1967-02-01), Dressler
patent: 3427990 (1969-02-01), Bryan, Jr.
patent: 3468042 (1969-09-01), Coy
patent: 3677191 (1972-07-01), Nagy
patent: 3722423 (1973-03-01), Plasser et al.
patent: 3731410 (1973-05-01), Cripe
patent: 4249325 (1981-02-01), Theurer
patent: 4282663 (1981-08-01), Theurer
patent: 4601244 (1986-07-01), Fischer
patent: 4905387 (1990-03-01), Street
patent: 5094018 (1992-03-01), Theurer et al.
patent: 5423268 (1995-06-01), Bounds
Difco, Inc.
Melius Terry Lee
Pezzuto Robert
LandOfFree
Railroad ballast spreading (plow) system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Railroad ballast spreading (plow) system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Railroad ballast spreading (plow) system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-777174