E01B 33/02
Machines or devices for shifting tracks, with or without lifting: for slewing
Official title: for slewing, i.e. transversely shifting, in steps
E01B33/02 (Machines or devices for shifting tracks, with or without lifting: for slewing) appears on 15 US grants and 7 published applications in this corpus.
Search patents in E01B- Granted patents
- 15
- Published applications
- 7
- Assignees
- 12
- Inventors
- 24
- Latest grant
- 21 Sep 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 1 | 3 |
| 2018 | 2 | 2 |
| 2019 | 1 | 0 |
| 2020 | 1 | 0 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Method and track-building machine for renewing sleepers of a track formed from rails and the sleepers21 Sep 2021US 11,124,923 B2Matisa Materiel Industriel S.A.
- Rail vehicle having stabilizer workhead with powered axles29 Sep 2020US 10,787,771 B2Harsco Technologies LLC
- Projector for track alignment reference systems10 Sep 2019US 10,407,835 B2Focus Point Solutions
- Railway track sleeper squaring device and self-propelled machine which comprises this device27 Nov 2018US 10,138,605 B2Ferrovial Agromen, S.A.
- Method for measuring and displaying the track geometry of a track system6 Nov 2018US 10,119,227 B2HP3 Real GmbH
- Method and track-building machine for renewing sleepers of a track formed from rails and the sleepers8 Nov 2018US 2018/0320324 A1Matisa Materiel Industriel S.A.
- Rail vehicle having stabilizer workhead with powered axles8 Feb 2018US 2018/0038051 A1Harsco Technologies LLC
- A method for measuring and displaying the track geometry of a track system26 Oct 2017US 2017/0306568 A1HP3 Real GmbH
- A railway track sleeper squaring device and self-propelled machine which comprises this device11 May 2017US 2017/0130403 A1Ferrovial Agromen, S.A.
- Projector for track alignment reference systems26 Jan 2017US 2017/0022672 A1Dutch Enginnering LLC
Most cited
By later US patents
- Railroad correction apparatus10US 4,658,730 ACanron, Inc. · 1987
- Device for laterally displacing a railroad track9US 3,952,665 ACanron, Inc. · 1976
- Railway work-site machine equipped with a mechanical unit for displacement of the track9US 4,342,263 ASig Societe Industrielle Suisse · 1982
- Shoulder tamping lifting jack8US 3,965,822 ACanron, Inc. · 1976
- Switch lifting frame7US 4,111,128 ACanron Railgroup · 1978