Class 105/280 - Doors

Subclass of Class 105 - Railway rolling stock
Definition: Car body constructions involving doors adapted for use on
No. of patents: 39
Last issue date: 02/02/2010

Number	Title	Issue Date
7654205	Railcar door control apparatus An apparatus for controlling discharge of commodity from a railcar having a hopper with at least two transversely spaced discharge openings and two laterally spaced and commonly joined pivotal doors arranged in registry with the two discharge openings. The control a...	02/02/2010
7493865	Railcar door control apparatus An apparatus for controlling discharge of commodity from a railcar having a hopper with at least two transversely spaced discharge openings and two laterally spaced and commonly joined pivotal doors arranged in registry with the two discharge openings. The control a...	02/24/2009
7367272	Door position indicating mechanism for a railcar A door position indicating mechanism for use with a railroad car. The mechanism includes a shaft which extends across the longitudinal direction of the car. An offset section of the shaft has a roller which contacts a lever which is shifted by an air cylinder when o...	05/06/2008
6932433	Hopper closure assembly and method of using same A closure mechanism for a hopper bottom trailer which utilizes potential and kinetic energy of granular material in the hopper. The hopper closure assembly may have an angled member upon a gate that translates kinetic energy for moving granular material into longitu...	08/23/2005
6736072	Sliding railcar door A sliding door is provided for a rail car of the type having a floor, a side wall along one side of the floor and standing upwardly from the floor and an opening in the side wall. The sliding door is mounted on top and bottom rails at the opening extending parallel ...	05/18/2004
6591761	Sealing door for a rail car A sliding door is provided for use on a rail car having a floor and a side wall with an opening therein along one side of the floor. The opening is defined by a pair of side posts having respective front surface and a top and bottom sill. The front surfac...	07/15/2003
6378443	Hopper car outlet gate valve A pneumatic outlet gate of a railroad hopper car has an valve member mounted for rotation in a discharge tube between open and closed positions. The valve member is an arcuate segment terminating laterally at edge faces. The edge faces are angled such tha...	04/30/2002
6286436	Mobile cement laying machine A mobile cement laying machine for delivering concrete via tracks to areas which are difficult to access by truck. The mobile cement laying machine includes a carriage with a front end and a back end. A hopper is mounted to an upper side of the carriage t...	09/11/2001
6263802	Hopper car outlet gate valve A pneumatic outlet gate of a railroad hopper car has an valve member mounted for rotation in a discharge tube between open and closed positions. The valve member is an arcuate segment terminating laterally at edge faces. The edge faces are angled such tha...	07/24/2001
6257150	Rapid discharge railcar door A rapid discharge railcar door consisted of a plastic main body reinforced by an aluminum frame, and which provides sufficient strength against load-bearing forces and withstands changes in temperature. The main body of the door is made from a polymer in ...	07/10/2001
6067912	Automated discharge system for hopper car A single circular or cylindrical door is provided which covers a pair of horizontal discharge openings in a hopper car construction transversely of the longitudinal axis of the rail car. Each circular or cylindrical door is pivotally mounted to the rail c...	05/30/2000
5829358	Dual durometer gasket for a railroad hopper car A gasket assembly for sealing between a gate assembly and the bottom opening of a railroad hopper car wherein the gate assembly has a peripheral flange, and a hopper car flange surrounds the bottom opening of the railroad hopper car. The gasket includes a...	11/03/1998
5606916	Hopper door operating mechanism A hopper door operating mechanism includes an arcuate closing plate mounted on an internal shaft pivotably connected to the frame of the hopper door. An operating crank has one end connected to the internal shaft and the other end pivotably connected to a...	03/04/1997
5488911	Compactable self-ejecting refuse car A structurally reinforced railroad car is provided which interfaces with the output of a typical refuse compactor and is capable of being thus forcibly filled with compacted refuse which efficiently fills and conforms to the interior, making maximum volum...	02/06/1996
5448954	Discharge hopper A discharge hopper rail car (10) comprises a hopper body (14) mounted on a chassis (12) which is itself supported on flanged wheels (20). The body (14) includes a discharge opening in a lower part thereof and a door structure (16) pivotally mounted on the...	09/12/1995
5400718	Loading wagon for transport, storage and discharge of bulk material A loading wagon (1) for the transport, storage and discharge of bulk material has a wagon frame (2) supported on on-track undercarriages (3) and a wagon body (5) connected to the wagon frame, there being arranged in the base region of the wagon body a bas...	03/28/1995
5335880	Cargo compartment door for an aircraft A cargo compartment door for a passenger aircraft having about 80 to 150 seats, wherein the cargo compartment is located underneath the cabin floor, closes a loading opening (6) that extends from approximately a connection area (3, 4) between the cabin fl...	08/09/1994
5263421	Coal fly-ash railway hopper car with 70 degree minimum slope and end sheet angle and longitudinal dual purpose loading hatch A dual-purpose railway hopper car is constructed so that it is capable of holding, handling and hauling both coal and fly ash on different trips by virtue of having a plurality of quick opening hopper doors which are sealed to prevent leakage of fly ash w...	11/23/1993
5199612	Traveling bucket with dispensing outlet closure mechanism A traveling bucket assembly is operable to dispense particulate product contained in a pair of food hoppers simultaneously onto target areas on an underlying conveyor. An outside gate is movable to open and close a dispensing outlet formed in the bottom o...	04/06/1993
5119738	Hopper construction A hopper for a railroad car having a pair of side hopper walls, a pair of end hopper walls, a gate system positioned at a hopper discharge opening, and a crossmember affixed at one end to one of the side hopper walls and affixed at another end to another ...	06/09/1992
5063858	Covered hopper railway car with drop bottom doors and substantially vertical outlets to maximize discharge area A covered hopper railway car (10) for transporting difficult-to-unload ladings includes a pair of parallel, spaced apart side walls (12a, 12b) and opposed end walls (14a, 14b). A roof (16) covers the car and has an opening (18) therein for loading lading ...	11/12/1991
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
4747742	Unloading flap for pourable particulate material An unloading flap of a stationary or mobile silo for pourable particulate material having at least one outlet opening comprises an upper part that is secured to a first silo wall and a lower part that hinges on the upper part and can be tilted into the op...	05/31/1988
4583901	Gates for self unloading vessels Apparatus for handling particulate material such as is stored in a hopper having an elongated throat opening closed by one or more gates. The gates are mounted at one end thereof from axially aligned rails which are preferably mounted outside the hopper o...	04/22/1986
4500230	Pneumatic gate for railway hopper cars A pneumatic gate for railway hopper cars which includes a non-tubular valve member deployed above a gate discharge tunnel, with said valve member being actuated by rotation about a bearing shaft which is disposed along an axis parallel with the axis of th...	02/19/1985
4428504	Dual-function cargo discharge apparatus In a self-unloading vessel having hoppers with discharge outlets for discharging either lump or pulverulent material onto an unloading conveyor, discharge apparatus includes a wheeled carriage supporting two separate gate assemblies thereon and movable to...	01/31/1984
4325308	Controlled-discharge door for particulate materials and liquids A controlled-discharge door assembly for particulate material or liquids includes a door member with a curved surface engaged by a large diameter roller mounted to a pivotable lever. The roller diameter is large in comparison to the length of the lever ar...	04/20/1982
4323096	Combination vacuum relief valve and pressure relief valve which are protected from the atmosphere A vacuum relief valve assembly includes a vacuum valve member located below a top cover plate and is thus protected from the atmosphere. First passageways defined in part by a bottom cover plate provide communication between the outside atmosphere and the...	04/06/1982
4278382	Door latch mechanism for bottom dump hopper car A bottom dump hopper car includes a pair of closure doors interconnected for conjoint movement. One of the doors is provided with a pivoted arm extending toward the center sill and is in operative engagement with a pivoted locking latch. The latch include...	07/14/1981
4271649	Structural panel A structural panel such as a door for a railway freight car has a lightweight core formed by two sheets of low density material e.g. balsa wood. Each sheet has bonded to one side a series of layers of glass fibre, and the sheets are bonded together in con...	06/09/1981
4252066	Levered hopper door lock mechanism A lever operated lock mechanism for a hopper door is provided which is especially suitable for use on railway hopper cars having hinged double doors. Included in the lock mechanism is a hook assembly which is pivotally mounted on a housing secured to the ...	02/24/1981
4250814	Dual hopper car doors A rapid dump hopper car includes a pair of relatively lightweight doors which are opened and closed sequentially from an overlapping position by means of a longitudinally extending actuating mechanism movably supported on the underframe of the car. The do...	02/17/1981
4236458	Door locking and actuating mechanism for hopper car A locking and actuating mechanism for a pair of horizontally movable hopper doors includes an arm and actuating linkage which engages a track side cam for moving the doors between open and closed positions. One of the doors includes a keeper which is enga...	12/02/1980
4184432	Hopper car door lock mechanism A lock mechanism for a hopper door is provided which is especially suitable for use on railway hopper cars having hinged double doors. Included in the lock mechanism is a hook which is mounted on an outside hopper sheet and which is pivotable for engaging...	01/22/1980
4103817	Railway hopper car door frame assembly A door frame assembly process for conventional railway hopper car discharge openings. Five individual frame components are formed of plate or rolled angle members, and are assemblable in a jig. One dimension of the assembly is defined by the predetermined...	08/01/1978
4051785	Dual discharge hopper device for bulk cargo vehicles A dual discharge hopper device for the cargo body of a bulk cargo carrying wheeled vehicle has at least one transverse side wall which is pivoted and releasably latched for free discharge of material from the cargo body, and also has a bottom closure whic...	10/04/1977
4036149	Fabricated hopper car outlet door frame The door frame includes an upper frame member, a pair of Z-configuration side frame members secured to the upper frame member, a lower frame member, and a pair of Z-configuration corner fittings interconnecting the lower the frame member with the side fra...	07/19/1977
4010695	Coke quenching car closure mechanism A coke quench car having a slanted bottom and discharge opening in one wall is provided with a movable grate at the discharge opening to drain water and retain coke. A door outboard of the grate closes the discharge opening in a substantially liquid-tight...	03/08/1977
3997089	Sealing hopper closure assembly A discharge gate assembly for sealing and controlling the flow of particulate material from a discharge opening in a hopper of the type used on semi-trailers, railroad cars or storage bins is disclosed wherein the discharge gate assembly comprises a frame...	12/14/1976

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Class 105/280 - Doors