H01H 1/502
The action of the contact pressure spring becoming active only after engagement
Official title: {the action of the contact pressure spring becoming active only after engagement of the contacts}
H01H1/502 (The action of the contact pressure spring becoming active only after engagement) appears on 23 US grants and 30 published applications in this corpus.
Search patents in H01H- Granted patents
- 23
- Published applications
- 30
- Assignees
- 24
- Inventors
- 75
- Latest grant
- 5 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 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 | 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 | 1 |
| 2012 | 2 | 1 |
| 2013 | 2 | 1 |
| 2014 | 2 | 3 |
| 2015 | 0 | 4 |
| 2016 | 4 | 0 |
| 2017 | 0 | 2 |
| 2018 | 2 | 0 |
| 2019 | 1 | 4 |
| 2020 | 1 | 1 |
| 2021 | 1 | 2 |
| 2022 | 2 | 2 |
| 2023 | 1 | 3 |
| 2024 | 2 | 1 |
| 2025 | 2 | 0 |
| 2026 | 0 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Vacuum interrupter anti-bounce dampener5 Aug 2025US 12,381,052 B2S&C Electric Company
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- Contact bounce reduction system29 Aug 2023US 11,742,157 B2Hitachi Energy Switzerland AG
- Vacuum circuit breaker6 Aug 2026US 2026/0229430 A1Hd Hyundai Electric Co., Ltd.
- Electromagnetic relay9 Jul 2026US 2026/0196434 A1OMRON Corporation
- Fault breaking contactor with dynamic air gap mechanism11 Jun 2026US 2026/0162919 A1Sensata Technologies, Inc.
- Contactor movable contact assembly and contactor2 Apr 2026US 2026/0094773 A1Tyco Electronics Technology (SIP) Co., Ltd.
- Driving mechanism and operating device for an electrical switch2 Apr 2026US 2026/0094774 A1Eaton Intelligent Power Limited
Most cited
By later US patents
- Electrical circuit interruptors7US 4,321,436 AFederal Pacific Electric Company · 1982
- Electromagnet device and switch device using electromagnet device7US 8,680,956 B2Mitsubishi Electric Corporation · 2014
- Reed switch assembly of magnetic latching relay5US 8,587,394 B1Dongguan Sanyou Electrical Appliances Co., Ltd. · 2013
- Switching device and a switchgear3US 9,362,061 B2ABB Technology AG · 2016
- Electromagnetic relay2US 10,714,289 B2OMRON Corporation · 2020