| Patents for B61G 3 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements (539) |
|---|
| 11/18/1980 | CA1089808A1 Tail portion for railroad car coupler knuckle |
| 11/11/1980 | US4232794 Automatic car coupler |
| 11/11/1980 | US4232793 Car coupling arrangement for railway passenger cars |
| 10/07/1980 | CA1087135A1 Locking mechanism of a railroad car coupler |
| 06/10/1980 | US4206849 Tail portion for railroad car coupler knuckle |
| 06/10/1980 | CA1079234A1 Coupler knuckle with safety shelf |
| 05/20/1980 | US4203523 Locksetting mechanism for a rigid jaw coupler |
| 04/01/1980 | CA1074738A1 Uncoupling device for rotary dump cars |
| 04/01/1980 | CA1074737A1 Car coupler |
| 01/22/1980 | CA1070267A1 Lock for a railway vehicle coupler |
| 10/30/1979 | US4172530 Roll-over lock protection for railroad car coupler |
| 06/12/1979 | CA1056338A1 Automatic hose coupling for railway rolling stock |
| 03/27/1979 | US4146143 Automatic coupler for railway vehicles |
| 02/27/1979 | CA1049454A1 Railway car coupler |
| 01/23/1979 | US4135629 Coupler knuckle with safety shelf |
| 12/26/1978 | CA1045085A1 Coupler double shelf collar |
| 12/12/1978 | US4129219 Railway car coupler |
| 12/05/1978 | US4128178 Rotary type railway car coupler |
| 11/07/1978 | CA1041952A1 Car coupler |
| 10/24/1978 | CA1041050A1 Coupler knuckle contour |
| 10/10/1978 | US4119209 Locking mechanism of a railroad car coupler |
| 10/03/1978 | CA1039683A1 Coupler |
| 09/05/1978 | CA1037911A2 Railway car coupler |
| 05/23/1978 | US4090615 Coupler knuckle assembly |
| 04/18/1978 | US4084705 Lock for a railway vehicle coupler |
| 04/18/1978 | US4084704 Car coupler |
| 03/21/1978 | US4079842 Uncoupling device for rotary dump cars |
| 02/14/1978 | US4073385 Car coupler |
| 09/13/1977 | US4047619 Uncoupling device for rotary dump cars |
| 06/21/1977 | US4030613 Uncoupling lever arrangement for railroad cars with standard draft gear cushioning |
| 05/24/1977 | US4024958 Coupler knuckle contour |
| 03/08/1977 | US4010854 Uncoupling lever assembly |
| 12/21/1976 | US3998337 Coupler double shelf collar |
| 10/26/1976 | USRE29011 Railway Coupler Shank Keyslot Contour |
| 08/03/1976 | US3972421 Car coupler |
| 07/27/1976 | US3971479 Railway car coupler |
| 02/24/1976 | US3939989 Coupling apparatus |
| 02/10/1976 | US3937330 Uncoupling device for rotary couplers on freight cars |
| 01/20/1976 | US3933252 Railroad car uncoupling lever with antifriction slideway arrangement |