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| Number | Title | Issue Date |
| 7063022 | Trackside railcar door opener and closer An automated and semi-automated trackside railcar door opener and closer for use with railcar doors located on or near the bottom of the railcar including a tool carriage, a controller and a support substantially parallel to a railroad track. A railcar door opener i... | 06/20/2006 |
| 5470186 | System for discharge of bulk materials from vehicles A system for operating hopper doors 14, 16 in a bulk transport vehicle comprises linkages 34, 36, 38, 40 forming an over-center locking arrangement and separate opening and closing trip levers 24, 50 attached to an operating shaft 30. The trip levers 24, ... | 11/28/1995 |
| 5302072 | Trackside door closing device for railway hopper cars A trackside device for closing hopper doors (14) has an eccentrically rotatable wheel (18). The wheel (18) rotates upon contacting a hopper door (14) to move it inward to a closed position. In a preferred embodiment, two devices are positioned on opposite... | 04/12/1994 |
| 4780033 | Rail car with rotatable floor for quick loading and unloading of trailers A railroad freight car having a rotatable loading floor for transferring loads between it and a station platform. The railroad station has two platforms on opposite sides of the rail car. An edge of each platform is provided at each longitudinal end with ... | 10/25/1988 |
| 4762458 | Bottom discharge hopper A bottom discharge hopper includes an elongated rectangular discharge opening closable by two discharge doors hinged along their outer edges to the hopper so that the doors are biased to an open position. Each door includes control means comprising a bias... | 08/09/1988 |
| 4740130 | Hopper A bottom discharge hopper the body of which is elevated at a tip by ramps so that doors on the underside of the body, which are secured thereto by links and which are pivotally fixed to upstanding structure on the chassis, open outwardly and downwardly to... | 04/26/1988 |
| 4492509 | Object-conveying box, and object-sorting machine equipped with such boxes A box formed by a set of walls closed by a pivoting bottom which is openable so that the object which it carries falls vertically in the ejection zone to be collected in a receptacle. The walls are extended below the bottom so that the pivoting operation ... | 01/08/1985 |
| 4480954 | Bottom dump arrangement A bottom dump arrangement attached to a body which provides a goods-holding space, the body resting on an undercarriage and including at least one pair of adjacent doors having remote edges, the doors being pivotally attached at their remote edges for swi... | 11/06/1984 |
| 4453871 | Goods wagon unloading mechanism An unloading mechanism for a goods wagon having a container with a cylindrical bottom and rotatably carried at its ends in bearings on bogies comprises an arcuate guide affixed to the container and extending on the underside around the cylindrical bottom ... | 06/12/1984 |
| 4358238 | Collection, storage and disposal system for refuse, trash or any other applicable materials A train of tandem arranged, wheeled, refuse receptacles, pulled by a prime mover along a path, are successively moved over a dump chute to drop their contents when their discharge doors are successively tripped, the contents falling downwardly through the... | 11/09/1982 |
| 4339222 | Door locking mechanism for hopper car doors A door locking mechanism for a hopper door includes a latch arrangement which is incorporated into a door closure mechanism activated by a side-of-track camming mechanism. The arrangement includes an actuating device responsive to car wheel engagement and... | 07/13/1982 |
| 4335988 | Trackside cam centering arrangement A trackside door closing arrangement for closing the swinging doors of a railway hopper car. This arrangement is self centering and shifts to counteract the cars lateral sway as it passes through the mechanism or shifts to accommodate cars that have paral... | 06/22/1982 |
| 4321872 | Automatic hopper unloading device Apparatus for automatically unloading a hopper type car having at least one pair of doors whose individual doors swing open in opposite directions, each door having an end of a connecting rod attached thereto so that the rod is moved in the same direction... | 03/30/1982 |
| 4291631 | Railway car side discharge door locking arrangement The side discharge doors of a railway hopper car are maintained in a closed and locked position by a rotatable latch element which is engaged by a stop and lock member. The stop and lock member is connected to a linkage rigging arrangement which is moved ... | 09/29/1981 |
| 4289078 | Tilting dumping bottom section railway car In accordance with the present invention an open top railway car is provided in which the car body is divided longitudinally into at least two body sections having opposite ends which are pivotally mounted on vertically extending supports attached to a ca... | 09/15/1981 |
| 4280778 | Hopper car door operating mechanism A railway hopper car includes laterally positioned bottom dump discharge openings and doors which are locked in a closed position by a latching mechanism actuated from a ground-mounted trip lever. After the car has been dumped it is moved adjacent to a gr... | 07/28/1981 |
| 4277215 | Articulate material transfer system An improved system for automatically transferring particulate material, such as coal, is provided wherein the particulate material is transferred from a railroad car into an underground storage bunker while maintaining the material in a substantially cove... | 07/07/1981 |
| 4234233 | Chain driven cutting bucket for use in deep mining A bucket is disclosed for both chipping coal from a coal seam and for removing the coal from the seam. The bucket is arranged for flexible coupling to preceding and succeeding buckets to form a continuous train for rotation through a coal tunnel. Along th... | 11/18/1980 |
| 4232989 | Cam actuated railway hopper car door operating mechanism A door operating mechanism for a bottom dump railway hopper car including a plurality of longitudinally mounted, divergently opening discharge doors held in the closed position by a plurality of longitudinally spaced claw-like latches. Each pair of transv... | 11/11/1980 |
| 4213725 | Double locking door latch mechanism for railway hopper cars A hopper car door locking mechanism includes a rotatable latch member which includes a keeper receiving portion. The latch member also includes a positioning portion providing stops which are engaged by a rotatable locking pawl in the closed position of t... | 07/22/1980 |
| 4174921 | Process and plant for the continuous unloading of the heavy-duty containers in a pneumatic transport system A system for the continuous unloading of the containers of pneumatic tranrt vehicles to which an initial velocity is imparted by pneumatic displacement within a transport tube section, while the movement of the vehicles beyond the transport tube section ... | 11/20/1979 |
| 4168929 | Unloading system including open top bottom dump railway car having transversely spaced body sections In accordance with the present invention an open top railway car is provided in which the car body is divided longitudinally into at least two body sections having opposite ends which are pivotally mounted on vertically extending supports attached to a ca... | 09/25/1979 |
| 4153168 | Automatic hopper door opener The automatic controlling of a hopper door of a moving dump vehicle is actuated in sequence by a wayside mechanical trip and subsequently by a wayside inductive signal. An automatic preliminary check is made of the control system immediately upon actuatio... | 05/08/1979 |
| 4120412 | Trackside door closing arrangement for railway hopper cars A trackside door closing arrangement for closing the swinging doors of a railway hopper car includes a pair of pneumatic tires and wheels mounted on a pivot arm. The tires are interconnected for rotation in concert and during engagement with the doors, sw... | 10/17/1978 |
| 4062460 | Gate operating mechanism for a hopper car A bottom dump railway car includes gravity biased gates which are moved outwardly to an open position. Each gate includes an outwardly projecting arm having a cam follower mounted thereon. Track side cams are engaged by the cam followers which engage cam ... | 12/13/1977 |
| 4054215 | Article delivery and unloading device A vehicle adapted to be conveyed along a track has an inclined upper platform for supporting an article thereon. A gate hinged to the lower end of the platform is maintained in an upright position by a rotatable lever thereby preventing the article from s... | 10/18/1977 |
| 4051960 | Locking end actuating mechanism for railway hopper car doors A railway hopper car includes side discharge openings and hinged door assemblies which are maintained in a locked position by an improved latching mechanism. The latching mechanism is pivotally connected to car structure and includes a positive lock arran... | 10/04/1977 |
| 4011956 | Closure mechanism for bottom dump hopper cars A side of track closure mechanism is provided for engaging and exerting an inwardly directed lateral thrust against bottom dump doors of a hopper car for hingedly moving the doors inwardly to a closed position. The actuating mechanism includes a rotating ... | 03/15/1977 |
| 3994238 | Railway hopper car with bottom door discharge mechanism A bottom door discharge mechanism for a railway hopper car includes a bell crank arm for each of the doors located in pairs at the bottom of the hopper. The arms are tripped from track side cams on opposite sides of the car for movement to open and closed... | 11/30/1976 |
| 3982641 | Hopper car door actuating mechanism A door actuating mechanism for hopper cars includes a pivoted lever moved in response to a cam situated along the track on which a railway car travels. In order to provide for proper door opening under all conditions, a secondary cam is also provided whic... | 09/28/1976 |
| 3951077 | Railway hopper car door and latch actuating means A railway hopper car having bottom dump discharge openings include a bell crank arm which is pivoted by a camming arrangement positioned adjacent to track to an opened position whereby a load is discharged. An auxiliary latch is provided which in the norm... | 04/20/1976 |
