H01H 3/42
Using cam or eccentric
Official title: using cam or eccentric
H01H3/42 (Using cam or eccentric) appears on 239 US grants and 225 published applications in this corpus.
Search patents in H01H- Granted patents
- 239
- Published applications
- 225
- Assignees
- 153
- Inventors
- 541
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 4 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 3 | 2 |
| 2004 | 1 | 2 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 3 | 5 |
| 2008 | 4 | 7 |
| 2009 | 2 | 8 |
| 2010 | 7 | 14 |
| 2011 | 3 | 4 |
| 2012 | 12 | 7 |
| 2013 | 9 | 11 |
| 2014 | 6 | 14 |
| 2015 | 13 | 27 |
| 2016 | 20 | 9 |
| 2017 | 22 | 15 |
| 2018 | 10 | 10 |
| 2019 | 13 | 17 |
| 2020 | 11 | 13 |
| 2021 | 15 | 15 |
| 2022 | 11 | 15 |
| 2023 | 14 | 11 |
| 2024 | 11 | 10 |
| 2025 | 10 | 2 |
| 2026 | 2 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Switch with a movable contact and an elastic assembly8 Sep 2026US 12,731,739 B2Eaton Intelligent Power Limited
- Actuation unit for a switching apparatus23 Jun 2026US 12,665,141 B2ABB Schweiz AG
- Operating mechanism for circuit breakers16 Dec 2025US 12,500,052 B2Hitachi Energy Ltd
- Power connector and power outlet14 Oct 2025US 12,444,870 B2OMRON Corporation
- Microswitch based position sensor with harness relief for motorized valve14 Oct 2025US 12,446,161 B2Hamilton Sundstrand Corporation
- Rotation shaft structure, transmission system, operation mechanism and switching device assembly20 Aug 2026US 2026/0245810 A1Schneider Electric Industries SAS
- Battery configuration contactor assembly13 Aug 2026US 2026/0237572 A1Sensata Technologies, Inc.
- Rapid-click switch4 Jun 2026US 2026/0155320 A1Shenzhen Drunken Deer Technology Co., Ltd.
- Push switch device14 May 2026US 2026/0135050 A1Alps Alpine Co., Ltd.
- Switching unit for electrical applications12 Mar 2026US 2026/0074129 A1
Most cited
By later US patents
- External operation handle device for a circuit breaker39US 7,368,675 B2Fuji Electric Fa Components & Systems Co., Ltd. · 2008
- Method and apparatus for converting a manual transfer switch into an automatic transfer switch30US 6,100,604 AElectric Equipment & Engineering Co. · 2000
- Cam-assisted switch29US 5,626,223 APackard Hughes Interconnect Company · 1997
- Electrical switching apparatus with modular operating mechanism for mounting and controlling large compression close spring27US 6,072,136 AEaton Corporation · 2000
- Three-position actuating mechanism for transfer switch20US 4,999,598 AOnan Corporation · 1991