E21C 29/145
Means for tensioning the haulage chains or cables
Official title: {Means for tensioning the haulage chains or cables}
E21C29/145 (Means for tensioning the haulage chains or cables) appears on 5 US grants and 4 published applications in this corpus.
Search patents in E21C- Granted patents
- 5
- Published applications
- 4
- Assignees
- 5
- Inventors
- 24
- Latest grant
- 22 Nov 2016
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 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 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Drive connection with integrated chain tensioning apparatus for face conveyors22 Nov 2016US 9,499,347 B2Caterpillar Global Mining Europe GmbH
- Chain guide for a driving chain of a mining machine1 Oct 2013US 8,544,960 B2Caterpillar Global Mining Europe GmbH
- Drive system having a pin drive chain for a cutting machine for underground mining3 Aug 1999US 5,931,540 ADBT Deutsche Bergbau-Technik GmbH
- Method and a device for tensioning endless drive belts24 Jun 1997US 5,641,058 AWestfalia Becorit Industrietechnik GmbH
- Mineral mining installation with chain-tensioning system15 Dec 1992US 5,171,065 AGewerkschaft Eisenhutte Westfalia
- Drive connection with integrated chain tensioning apparatus for face conveyors24 Mar 2016US 2016/0083191 A1Caterpillar Global Mining Europe GmbH
- Excavating deposits from an underground formation layer29 Oct 2015US 2015/0308267 A1
- Extraction installation for mineral extraction1 Oct 2015US 2015/0275664 A1Caterpillar Global Mining Europe GmbH
- Chain guide for a driving chain of a mining machine28 Apr 2011US 2011/0095595 A1Bucyrus Europe GmbH
Most cited
By later US patents
- Method and a device for tensioning endless drive belts45US 5,641,058 AWestfalia Becorit Industrietechnik GmbH · 1997
- Mineral mining installation with chain-tensioning system2US 5,171,065 AGewerkschaft Eisenhutte Westfalia · 1992
- Drive system having a pin drive chain for a cutting machine for underground mining1US 5,931,540 ADBT Deutsche Bergbau-Technik GmbH · 1999