Railway rolling stock – Special car bodies – Dumping
Reexamination Certificate
2006-10-24
2006-10-24
Le, Mark T. (Department: 3617)
Railway rolling stock
Special car bodies
Dumping
C105S282100, C105S282300
Reexamination Certificate
active
07124693
ABSTRACT:
An outlet gate assembly has upper and lower gate assemblies with independent drive mechanisms to open and close the gates. The drive mechanisms may be rack and pinion drives. The racks for the lower gate do not enter the gate cavity. The outlet gate assembly can be used for vacuum, gravity or pneumatic sled discharge. The vacuum openings are offset from the center plane of the discharge area to allow free flow of lading. The lower gate assembly includes surfaces that cover and protect the lowermost horizontal surfaces of the assembly when the lower gate assembly is closed. Thus, no separate mud plate is needed. The outlet gate assembly includes seals made of an ultra high molecular weight polymer.
REFERENCES:
patent: 2167364 (1939-07-01), Johnson
patent: 2186700 (1940-01-01), Johnson
patent: 2751860 (1956-06-01), Dath
patent: 2751861 (1956-06-01), Withall
patent: 2751862 (1956-06-01), Dorey
patent: 2853960 (1958-09-01), Corrigan
patent: 2898871 (1959-08-01), Dath
patent: 2914000 (1959-11-01), Mulcahy
patent: 2926963 (1960-03-01), Dorey
patent: 2950144 (1960-08-01), Dorey
patent: 2962325 (1960-11-01), Dorey
patent: 2969083 (1961-01-01), Joyce
patent: 3020093 (1962-02-01), Dorey
patent: 3085517 (1963-04-01), Smith
patent: 3138117 (1964-06-01), Dorey
patent: 3174807 (1965-03-01), Adler
patent: 3192874 (1965-07-01), Dorey
patent: RE26093 (1966-10-01), Ingram
patent: 3348501 (1967-10-01), Stevens et al.
patent: 3360302 (1967-12-01), Bagguley
patent: 3373884 (1968-03-01), Dorey
patent: 3393017 (1968-07-01), Smith
patent: 3446538 (1969-05-01), Danielson
patent: 3486241 (1969-12-01), Coyle et al.
patent: 3532062 (1970-10-01), Pulcrano
patent: 3539224 (1970-11-01), Beezhold
patent: 3578815 (1971-05-01), Mundinger et al.
patent: 3639007 (1972-02-01), Dare et al.
patent: 3650567 (1972-03-01), Danielson
patent: 3742865 (1973-07-01), Adler
patent: 3888188 (1975-06-01), Fuller
patent: 4360295 (1982-11-01), Anderson
patent: 4428504 (1984-01-01), Bassett et al.
patent: 4617868 (1986-10-01), Wahlstrom et al.
patent: 5507235 (1996-04-01), Dugge et al.
patent: 6123030 (2000-09-01), Dohr et al.
Keystone Drawings SE-6286—EXHIBIT A, Dec. 16, 1980.
Keystone Railway Equipment Company, Drawing SE-6286, dated Nov. 19, 1996, Exhibit A.
Keystone Railway Equipment Company, Drawing SE-17071, dated Nov. 20, 1997, Exhibit B.
Keystone Railway Equipment Company, Drawing SE-16236, dated Feb. 9, 1995, Exhibit C.
Keystone Railway Equipment Company, Drawing SE-16231, dated May 6, 1995, Exhibit D.
Keystone Railway Equipment Company, Drawing SE-17550, dated Feb. 25, 1997, Exhibit E.
Aero Transportation Products, Inc.
Chase Law Firm, L.C.
Le Mark T.
LandOfFree
Railway car outlet gate assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Railway car outlet gate assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Railway car outlet gate assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3618745