F16H 7/1227
Of the viscous friction type
Official title: {of the viscous friction type, e.g. viscous fluid}
F16H7/1227 (Of the viscous friction type) appears on 23 US grants and 11 published applications in this corpus.
Search patents in F16H- Granted patents
- 23
- Published applications
- 11
- Assignees
- 10
- Inventors
- 35
- Latest grant
- 29 Dec 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 2 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 2 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Endless drive arrangement for hybrid vehicle using two-armed tensioner with non-orbiting arms29 Dec 2020US 10,876,605 B2Litens Automotive Partnership
- Polygon compensation coupling for chain and sprocket driven systems12 May 2020US 10,647,548 B2Otis Elevator Company
- Polygon compensation coupling for chain and sprocket driven systems21 Mar 2017US 9,599,201 B2Otis Elevator Company
- Chain tensioning device5 Jan 2016US 9,228,643 B2Shimano Inc.
- Hydraulic damping mechanism and use for belt tensioning28 Apr 2015US 9,017,197 B2Dayco IP Holdings, LLC
- Endless drie arrangement for hybrid vehicle using two-armed tensioner with non-orbiting arms18 Jan 2018US 2018/0017143 A1Litens Automotive Partnership
- Polygon compensation coupling for chain and sprocket driven systems27 Apr 2017US 2017/0113902 A1Otis Elevator Company
- Chain tensioning device12 Mar 2015US 2015/0072817 A1Shimano Inc.
- Polygon Compensation Coupling for Chain and Sprocket Driven Systems6 Mar 2014US 2014/0066240 A1Otis Elevator Company
- Hydraulic damping mechanism and use for belt tensioning21 Nov 2013US 2013/0310207 A1Dayco Products, Inc.
Most cited
By later US patents
- Tensioner55US 4,832,665 AKoyo Seiko Co., Ltd. · 1989
- Tensioner with viscous coupled one way wrap spring anti-kickback clutch41US 6,375,588 B1Litens Automotive Partnership · 2002
- Chain or belt tensioner with a one-way clutch34US 4,923,435 AKoyo Seiko Co., Ltd. · 1990
- Tensioner for a power transmission belt and method of making the same23US 5,803,850 ADayco Products, Inc. · 1998
- Belt tensioner22US 4,934,987 AKoyo Seiko Co., Ltd. · 1990