H01H 1/56
Contact arrangements for providing make-before-break operation
Official title: Contact arrangements for providing make-before-break operation, e.g. for on-load tap-changing
H01H1/56 (Contact arrangements for providing make-before-break operation) appears on 18 US grants and 9 published applications in this corpus.
Search patents in H01H- Granted patents
- 18
- Published applications
- 9
- Assignees
- 16
- Inventors
- 33
- Latest grant
- 12 Mar 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 2 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 2 | 0 |
| 2020 | 0 | 2 |
| 2021 | 1 | 1 |
| 2022 | 2 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Shape memory alloy actuated switch12 Mar 2024US 11,929,219 B2Qatar Foundation for Education, Science and Community Development
- Shape memory alloy actuated switch29 Nov 2022US 11,515,101 B2Qatar Foundation for Education, Science and Community Development
- Self-supported actuation device for an electromechanical switch8 Mar 2022US 11,270,860 B2Saft
- Electrical switch with three fixed contacts, a rotating knife contact and three switch positions16 Nov 2021US 11,177,082 B2ABB Schweiz AG
- Permanent magnet drive on-load tap-changing switch30 Jul 2019US 10,366,815 B2
- Shape memory alloy actuated switch23 Mar 2023US 2023/0090594 A1Qatar Foundation for Education, Science and Community Development
- Shape memory alloy actuated switch4 Feb 2021US 2021/0035748 A1Qatar Foundation for Education, Science and Community Development
- Electrical switch24 Dec 2020US 2020/0402733 A1ABB Schweiz AG
- Self-supported actuation device for an electromechanical switch2 Jan 2020US 2020/0006029 A1Saft
- Permanent magnet drive on-load tap-changing switch18 Jan 2018US 2018/0019044 A1
Most cited
By later US patents
- Latch/switch for securing a circuit modules into a housing with accompanying circuit switching16US 4,798,923 AAmerican Telephone and Telegraph Company, AT&T Bell Laboratories · 1989
- Two-pole make-before-break switch13US 5,601,183 AEaton Corporation · 1997
- Switching device5US 4,000,480 ABell Telephone Laboratories, Incorporated · 1976
- Seesaw type electromagnetic relay serving as a continuous contact with a low power consumption5US 5,909,162 ANEC Corporation · 1999
- Elastomeric switch for electronic devices4US 5,493,082 AHughes Aircraft Company · 1996