F05B 2270/1014
To keep rotational speed constant
Official title: to keep rotational speed constant
F05B2270/1014 (To keep rotational speed constant) appears on 31 US grants and 44 published applications in this corpus.
Search patents in F05B- Granted patents
- 31
- Published applications
- 44
- Assignees
- 30
- Inventors
- 94
- Latest grant
- 1 Feb 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 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 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 3 |
| 2009 | 1 | 4 |
| 2010 | 2 | 1 |
| 2011 | 3 | 1 |
| 2012 | 1 | 7 |
| 2013 | 0 | 2 |
| 2014 | 2 | 2 |
| 2015 | 1 | 2 |
| 2016 | 0 | 0 |
| 2017 | 2 | 5 |
| 2018 | 1 | 3 |
| 2019 | 4 | 1 |
| 2020 | 2 | 3 |
| 2021 | 2 | 3 |
| 2022 | 3 | 2 |
| 2023 | 0 | 0 |
| 2024 | 0 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Stabilization of hydraulic machines with S-zone characteristics1 Feb 2022US 11,239,778 B2
- Method for stabilizing the rotation speed of a hydraulic machine with S-characteristics and installation for converting hydraulic energy into electrical energy25 Jan 2022US 11,231,006 B2
- Wind turbine propeller regulator to produce uninterrupted electricity and longer bearing life4 Jan 2022US 11,215,164 B2
- Computer system and method for detecting rotor imbalance at a wind turbine13 Apr 2021US 10,975,841 B2Uptake Technologies, Inc.
- Wind turbine propeller regulator to produce uninterrupted electricity and longer bearing life13 Apr 2021US 10,975,842 B2
- Earth gravity powered electric generator28 Mar 2024US 2024/0102456 A1
- System for accelerating wind turbine rotation11 Jan 2024US 2024/0011466 A1
- Dynamic wind turbine rotational speed control10 Nov 2022US 2022/0356870 A1
- Energy storage mechanisms for uncontrolled fuel input turbine21 Jul 2022US 2022/0228562 A1
- Rotary machine control system2 Sep 2021US 2021/0270238 A1Westinghouse Air Brake Technologies Corporation
Most cited
By later US patents
- Surge-accepting accumulator transmission for windmills and the like44US 4,239,977 A1980
- Methods and apparatus for controlling rotational speed of a rotor42US 7,352,075 B2General Electric Company · 2008
- Field control for wind-driven generators27US 4,331,881 AThe United States of America as represented by the Secretary of Agriculture · 1982
- Wind turbine25US 4,729,716 AMontana Wind Turbine, Inc. · 1988
- Method for utilizing wind energy for autonomous electricity production16US 4,556,801 ASNAMPROGETTI S.p. A. · 1985