F15B 9/10
In which the controlling element and the servomotor each controls a separate
Official title: in which the controlling element and the servomotor each controls a separate member, these members influencing different fluid passages or the same passage
F15B9/10 (In which the controlling element and the servomotor each controls a separate) appears on 50 US grants and 19 published applications in this corpus.
Search patents in F15B- Granted patents
- 50
- Published applications
- 19
- Assignees
- 43
- Inventors
- 106
- Latest grant
- 24 Oct 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 4 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 2 | 2 |
| 2004 | 0 | 0 |
| 2005 | 4 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 3 |
| 2015 | 3 | 2 |
| 2016 | 1 | 2 |
| 2017 | 2 | 2 |
| 2018 | 3 | 2 |
| 2019 | 0 | 2 |
| 2020 | 3 | 0 |
| 2021 | 2 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Hydraulic pump to synchronize the operation of a pair of hydraulic actuators24 Oct 2023US 11,795,944 B1JL Marine Systems, Inc.
- Control apparatus for a hydraulic variable-pitch propeller and propeller unit comprising a control apparatus of this kind12 Oct 2021US 11,143,200 B2MT-Propeller Entwicklung GmbH
- Hydraulic actuator and multi-cylinder hydraulic actuator system1 Jun 2021US 11,022,154 B2Goodrich Actuation Systems Limited
- Foldable wing and actuator arrangement9 Jun 2020US 10,676,174 B2Airbus Operations GmbH
- Fail-fixed hydraulic actuator14 Apr 2020US 10,619,654 B2Hamilton Sundstrand Corporation
- Control Apparatus For A Hydraulic Variable-Pitch Propeller And Propeller Unit Comprising A Control Apparatus Of This Kind9 May 2019US 2019/0136867 A1MT-Propeller Entwicklung GmbH
- Hydraulic actuator and multi-cylinder hydraulic actuator system21 Feb 2019US 2019/0055965 A1Goodrich Actuation Systems Limited
- Fail-fixed hydraulic actuator8 Nov 2018US 2018/0320715 A1Hamilton Sundstrand Corporation
- Cylinder acceleration mechanism13 Sep 2018US 2018/0258962 A1Taguchi Industrial Co., Ltd.
- Foldable wing and actuator arrangement14 Dec 2017US 2017/0355441 A1Airbus Operations GmbH
Most cited
By later US patents
- Electrohydraulic control system35US 4,418,610 AThe United States of America as represented by the Secretary of the Navy · 1983
- Control valve with mechanical feedback and method for controlling fluid flow24US 6,481,463 B1Parker-Hannifin Corporation · 2002
- Vane-type rotary hydraulic actuator device intended for driving an aircraft control surface22US 4,825,754 AS.A.M.M. Societe D' Applications Des Machines Motrices · 1989
- Remote control poppet valve18US 4,779,837 ATokyo Keiki Co., Ltd. · 1988
- Servo valve18US 5,938,098 A1999