F16H 25/122
Gearings with helical grooves and automatic reversal
Official title: {Gearings with helical grooves and automatic reversal}
F16H25/122 (Gearings with helical grooves and automatic reversal) appears on 38 US grants and 23 published applications in this corpus.
Search patents in F16H- Granted patents
- 38
- Published applications
- 23
- Assignees
- 29
- Inventors
- 55
- Latest grant
- 21 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 4 |
| 2014 | 1 | 2 |
| 2015 | 1 | 1 |
| 2016 | 4 | 1 |
| 2017 | 0 | 1 |
| 2018 | 1 | 2 |
| 2019 | 0 | 3 |
| 2020 | 2 | 0 |
| 2021 | 2 | 4 |
| 2022 | 2 | 0 |
| 2023 | 2 | 0 |
| 2024 | 1 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Systems and methods that use harmonic drives for converting reciprocating axial motion to continuous rotary motion, helical drives for converting reciprocating rotary motion to reciprocating axial motion and combinations thereof for converting reciprocating rotary motion to continuous rotary motion21 Jan 2025US 12,203,531 B2National Technology & Engineering Solutions of Sandia, LLC
- Systems and methods that use harmonic drives for converting reciprocating axial motion to continuous rotary motion, helical drives for converting reciprocating rotary motion to reciprocating axial motion and combinations thereof for converting reciprocating rotary motion to continuous rotary motion20 Feb 2024US 11,906,020 B2National Technology & Engineering Solutions of Sandia, LLC
- Auto-reversing driveshaft system and method23 May 2023US 11,655,883 B2
- Telescopic assembly and occlusion mechanism18 Apr 2023US 11,628,585 B1Dongguan Mi Mao Electronic Technology Co., Ltd.
- Linear actuating member driven by a rotating helix13 Dec 2022US 11,525,497 B2HTI Technology and Industries, Inc.
- Transmission device and forming tool13 Nov 2025US 2025/0345973 A1
- Systems and methods that use harmonic drives for converting reciprocating axial motion to continuous rotary motion, helical drives for converting reciprocating rotary motion to reciprocating axial motion and combinations thereof for converting reciprocating rotary motion to continuous rotary motion13 Jun 2024US 2024/0191786 A1National Technology & Engineering Solutions of Sandia, LLC
- Systems and methods that use harmonic drives for converting reciprocating axial motion to continuous rotary motion, helical drives for converting reciprocating rotary motion to reciprocating axial motion and combinations thereof for converting reciprocating rotary motion to continuous rotary motion30 Dec 2021US 2021/0404542 A1National Technology & Engineering Solutions of Sandia, LLC
- Linear actuating member driven by a rotating helix25 Nov 2021US 2021/0364069 A1HTI Technology and Industries, Inc.
- Auto-reversing driveshaft system and method27 May 2021US 2021/0156370 A1
Most cited
By later US patents
- Rotary motion/constant velocity linear reciprocating motion conversion device and hydraulic system using the same81US 5,390,585 ASamjoo Machinery Co., Ltd. · 1995
- Reversing attachment for diamond thread screw26US 4,343,200 A1982
- Linear differential mechanism23US 4,730,503 ARobomatix Ltd. · 1988
- Thrust to torque converter, particularly for coupling a reciprocating shaft to a rotary electrical generator or the like20US 4,912,995 A1990
- Reversing nut for diamond thread screw17US 4,031,765 ANorco, Inc. · 1977