| Patents for B61D 7 - Hopper cars (1,208) |
|---|
| 12/28/1993 | US5272987 Lock for railway hopper car unloading gate |
| 11/30/1993 | CA1324737C Freight discharge of railway wagons |
| 11/23/1993 | US5263422 Protected gate lock for hopper cars |
| 11/23/1993 | US5263421 Coal fly-ash railway hopper car with 70 degree minimum slope and end sheet angle and longitudinal dual purpose loading hatch |
| 11/18/1993 | EP0569372A1 Waste handling method. |
| 11/16/1993 | US5261333 Automated ballast door mechanism |
| 11/13/1993 | CA2068444A1 Recovery pan |
| 11/10/1993 | EP0556315A4 Means and method for enhancing plant growth under field conditions |
| 11/09/1993 | US5259324 Gate retainer |
| 11/09/1993 | US5259322 Five unit articulated covered hopper car |
| 10/19/1993 | US5253593 Tub/center sill attachment for gondola car |
| 10/12/1993 | CA1323052C Hopper car discharge gate seal |
| 10/05/1993 | US5249531 Railraod hopper car door actuating mechanism |
| 09/28/1993 | US5248227 System and method for transporting and handling phosphorous pentasulfide |
| 08/25/1993 | EP0556315A1 Means and method for enhancing plant growth under field conditions |
| 08/24/1993 | US5238333 Pneumatic outlet for railcars |
| 08/24/1993 | US5237934 End cap gate sampling device |
| 08/17/1993 | US5236287 Pneumatic outlet |
| 07/06/1993 | US5224761 Bottom dump front door latch |
| 07/06/1993 | US5224622 Recovery pan |
| 06/30/1993 | CN1021423C Loading wagon for bulk materials |
| 06/22/1993 | US5221172 Freight car for bulk material |
| 06/08/1993 | US5216958 Brake arrangement for a railroad gondola car with tie rod running inside center sill |
| 05/26/1993 | EP0543279A1 Gear for operating the discharge doors of a hopper wagon |
| 05/13/1993 | DE4136966A1 Variable self-dischargeable wagon for bulk materials - has raisable and pivotable roof with loading dome and foldable floor |
| 04/28/1993 | EP0538501A1 Cylinder accumulator with charging oil disconnecting device in a hydraulic circuit |
| 04/27/1993 | US5205696 Dumping system for a kiln floor |
| 04/20/1993 | CA1316401C Internal drainage system for hollow member structural |
| 03/30/1993 | US5197845 Conveyor system for self-unloading train |
| 02/23/1993 | US5188486 Quik-loc end arrangement for pneumatic outlet gates |
| 01/12/1993 | US5178074 Railway gondola car |
| 12/16/1992 | CN1067009A Automatic discharge apparatus for rocker-counterweight type bottom-dump bucket |
| 12/08/1992 | US5168816 Sludge car |
| 11/17/1992 | US5163372 Unit for actuating gates of a hopper railroad car |
| 11/10/1992 | CA1309991C Unloading flap for pourable particulate material |
| 10/28/1992 | EP0511198A1 Device and control of one or several electrically actuated magnetic valves |
| 10/28/1992 | CN1065635A Transportwagen |
| 09/24/1992 | DE4108953A1 Rail truck side flap automatic locking mechanism - has pawl securing stop lever against abutment |
| 09/08/1992 | US5144895 Hopper door apparatus for a railway car |
| 09/08/1992 | CA1307102C Method of converting a hopper type of rail car to accept a wider outlet gate |
| 09/02/1992 | EP0501318A1 Transport waggon |
| 09/02/1992 | EP0338027B1 Method and apparatus for handling and dry quenching coke |
| 09/02/1992 | CN2114601U Curtain type bottom tilting mine |
| 08/06/1992 | WO1992012938A1 Waste handling method |
| 08/06/1992 | CA2100087A1 Waste handling method |
| 07/29/1992 | EP0496312A1 Safety device on a bulk freight wagon |
| 07/01/1992 | CN1062325A Loading wagon for bulk materials |
| 06/23/1992 | CA1303907C End structure for railway car |
| 06/17/1992 | EP0490868A1 Boxcar for storing bulk material |
| 06/16/1992 | CA1303424C End structure for railway car |
| 06/09/1992 | US5119738 Hopper construction |
| 05/26/1992 | US5115748 Hopper door and operating apparatus for a railway car |
| 05/20/1992 | CN2104793U Hydraulic flat scraper type trusk cleaner |
| 04/30/1992 | WO1992006585A1 Means and method for enhancing plant growth under field conditions |
| 04/30/1992 | CA2094606A1 Means and method for enhancing plant growth under field conditions |
| 04/07/1992 | US5101584 Mobile ballast regulator |
| 03/17/1992 | US5095824 Outside stake cap for railroad hopper cars |
| 02/11/1992 | US5086709 Sliding gate structure with dual linkage per single actuator arrangement |
| 01/01/1992 | CN2091798U Self-discharging unit with rocker arm and weight for drop-bottom bunker |
| 12/19/1991 | CA2019249A1 Cam lock outlet gate |
| 11/12/1991 | US5063858 Covered hopper railway car with drop bottom doors and substantially vertical outlets to maximize discharge area |
| 10/29/1991 | US5060579 Sliding hopper outlet gate with plastic upper surface for smooth sliding and for sealing the outlet |
| 10/22/1991 | US5058509 Railway car with vented bolster to facilitate the thawing of lading |
| 10/02/1991 | CN1055026A Machine for distributing and grading of ballast |
| 09/10/1991 | US5046432 Unloading gate for bulk material handling containers |
| 08/28/1991 | EP0443633A2 Method and apparatus for handling and dry quenching coke |
| 08/13/1991 | US5038966 Hopper door closure |
| 08/06/1991 | CA1287265C Box car |
| 07/30/1991 | US5035185 Outlet gate pan gasket for hopper cars |
| 07/16/1991 | US5031546 Hopper car discharge system |
| 06/05/1991 | EP0430118A1 Railway freight car |
| 06/05/1991 | EP0429693A1 Storage tank |
| 05/23/1991 | CA2029946A1 Railroad hopper car discharge gate valve |
| 05/01/1991 | CA2027679A1 Covered hopper railway car with drop bottom doors |
| 04/30/1991 | US5011038 Hopper car inlet opening protector |
| 04/09/1991 | US5005739 Railroad hopper car outlet gate end tube seal |
| 04/09/1991 | US5005490 Railway hopper car sliding gate sealing mechanism |
| 03/27/1991 | EP0419423A1 A railway car for the transportation of debris |
| 02/25/1991 | CA2018424A1 Locking mechanism for railway car outlet cover |
| 02/19/1991 | US4993883 Pneumatic unloading apparatus for bulk materials |
| 01/16/1991 | CN2069371U Base-opened type mine car with non-adhesion base |
| 01/10/1991 | DE3921405A1 Unloading device for railway trucks containing loose material - has transverse and longitudinal conveyors set beneath vehicle |
| 01/10/1991 | DE3920776A1 Hopper car with control of side discharge opening - has steplessly controllable regulation of closure element using hydraulic cylinder |
| 12/12/1990 | CA2014378A1 Hatch arrangement for covered hopper cars |
| 11/27/1990 | US4973067 Hopper car discharge gate seal |
| 11/14/1990 | CN1046873A Double-gate funnel |
| 10/30/1990 | US4966081 Articulated multi-unit hopper railway car |
| 10/09/1990 | US4961387 Universally adaptable, hinged hatch cover system for railroad hopper cars |
| 10/07/1990 | CA2014069A1 Articulated multi-unit hopper railway car |
| 10/03/1990 | EP0389867A2 Tank supporting structure on a railway freight car frame |
| 10/03/1990 | EP0389866A2 Frame for railway freight cars, especially for tank vehicles or hopper cars |
| 09/27/1990 | DE3909883A1 Support for a container on the underframe of a railway goods wagon |
| 09/11/1990 | CA1273846A1 End structure for railway car |
| 07/31/1990 | US4944233 Hatch arrangement for covered hopper cars |
| 07/17/1990 | US4941411 Steel end structure for aluminum railcar |
| 06/05/1990 | US4930427 Railroad gondola or hopper car, particularly a coal car |
| 05/08/1990 | US4922833 End structure for railway car |
| 03/28/1990 | CN2055115U Dispersing stuff tank car |
| 03/20/1990 | US4909699 For a train |
| 03/20/1990 | US4909156 Bladder-tarp |