H01H 31/34
Air-break switches for high tension without arc-extinguishing or arc-preventing means: with movable
Official title: with movable contact adapted to engage an overhead transmission line, e.g. for branching
H01H31/34 (Air-break switches for high tension without arc-extinguishing or arc-preventing means: with movable) appears on 17 US grants and 12 published applications in this corpus.
Search patents in H01H- Granted patents
- 17
- Published applications
- 12
- Assignees
- 15
- Inventors
- 47
- Latest grant
- 14 Mar 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 2 | 0 |
| 2016 | 0 | 2 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 1 | 1 |
| 2020 | 2 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 2 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 2 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- High frequency transients suppression for hvdisconnectors with sliding resistor14 Mar 2023US 11,605,514 B2General Electric Technology GmbH
- Sensor system for measuring angle of gate of isolating switch of overhead lines15 Nov 2022US 11,501,935 B1East China Jiaotong University
- Disconnecting switch having anti-icing device14 Apr 2020US 10,622,166 B2ABB Schweiz AG
- Communication system controlled motorized in-line disconnect switch with improved lock out system18 Feb 2020US 10,566,156 B1Cleaveland/Price Inc.
- Disconnector and manufacturing method24 Dec 2019US 10,515,772 B2ABB Schweiz AG
- Rail Vehicle Roof with Electric Roof Equipment, and Rail Vehicle16 Oct 2025US 2025/0319775 A1Siemens Mobility Austria GmbH
- Electromechanical disconnector between a high-voltage overhead transmission line and a voltage transformer20 Feb 2025US 2025/0062092 A1Terna S.P.A.
- Sensor system for measuring angle of gate of isolating switch of overhead lines10 Nov 2022US 2022/0359139 A1East China Jiaotong University
- High frequency transients suppression for hvdisconnectors with sliding resistor6 Jan 2022US 2022/0005657 A1General Electric Technology GmbH
- Communication system controlled motorized in-line disconnect switch with improved lock out system27 Feb 2020US 2020/0066467 A1Cleaveland/Price Inc.
Most cited
By later US patents
- Telescopic isolating switch16US 4,568,808 AAlsthom-Atlantique · 1986
- Disconnect switch6US 4,504,708 ARuhrtal-Elektrizitatsgesellschaft Hartig GmbH & Co. · 1985
- Detecting an abnormality of a switch in a high voltage electrical substation6US 9,041,402 B2Eht International Inc. · 2015
- Exposed high voltage outdoor disconnector for operation under icing conditions5US 5,276,286 AGEC Alsthom Energie Inc. · 1994
- High voltage disconnecting switch4US 5,186,315 AMerlin Gerin · 1993