B61G 3/22
Couplings comprising mating parts of similar shape or form which can be
Official title: with coupling heads rigidly connected by locks consisting of pivoted latches
B61G3/22 (Couplings comprising mating parts of similar shape or form which can be) appears on 11 US grants and 7 published applications in this corpus.
Search patents in B61G- Granted patents
- 11
- Published applications
- 7
- Assignees
- 8
- Inventors
- 26
- Latest grant
- 28 Nov 2023
Filings by year
| Year | Granted patents | Published applications |
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| 1980 | 1 | 0 |
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| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
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| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 3 |
| 2019 | 1 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 2 | 0 |
| 2024 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Electrical connecting apparatus for supplying power to coupled cars of a rail vehicle28 Nov 2023US 11,827,252 B2HARTING Electric GmbH & Co. KG
- Railcar ant-scissoring system31 Oct 2023US 11,801,877 B1
- Support frames and rail cars for conveying bulk materials on a rail transport system23 Feb 2021US 10,926,781 B2Rail-Veyor Technologies Global Inc.
- Drive station arrangements10 Mar 2020US 10,583,846 B2Rail-Veyor Technologies Global Inc.
- Coupler uncoupling control mechanism8 Oct 2019US 10,435,046 B2Qingdao Sri Technology Co., Ltd.
- Automatic coupling8 Aug 2024US 2024/0262397 A1HÜBNER GmbH & Co.KG
- Electrical connecting apparatus for supplying power to coupled cars of a rail vehicle19 Mar 2020US 2020/0086896 A1HARTING Electric GmbH & Co. KG
- Coupler uncoupling control mechanism15 Aug 2019US 2019/0248388 A1Qingdao Sri Technology Co., Ltd.
- Control system for an improved rail transport system for conveying bulk materials5 Jul 2018US 2018/0186384 A1Rail-Veyor Technologies Global Inc.
- Drive station arrangements5 Jul 2018US 2018/0186385 A1Rail-Veyor Technologies Global Inc.
Most cited
By later US patents
- Bottom shelf coupler with anticreep protection means13US 4,466,546 AAMSTED Industries Incorporated · 1984
- Car coupler with enlarged gathering zone13US 4,627,545 AHarvey Hubbell Incorporated · 1986
- Alliance coupler lock lifter securing arm13US 5,833,086 AAMSTED Industries Incorporated · 1998
- Telescoping uncoupling lever4US 4,454,953 A1984
- Automatic coupling for model rail vehicles3US 4,700,855 AGeorg Utz AG · 1987