H01H 3/30
Using spring motor
Official title: using spring motor
H01H3/30 (Using spring motor) appears on 543 US grants and 333 published applications in this corpus.
Search patents in H01H- Granted patents
- 543
- Published applications
- 333
- Assignees
- 156
- Inventors
- 873
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 5 | 0 |
| 1978 | 11 | 0 |
| 1979 | 15 | 0 |
| 1980 | 9 | 0 |
| 1981 | 13 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 8 | 0 |
| 1986 | 5 | 0 |
| 1987 | 12 | 0 |
| 1988 | 10 | 0 |
| 1989 | 11 | 0 |
| 1990 | 8 | 0 |
| 1991 | 6 | 0 |
| 1992 | 7 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 17 | 0 |
| 1997 | 5 | 0 |
| 1998 | 8 | 0 |
| 1999 | 20 | 0 |
| 2000 | 22 | 0 |
| 2001 | 11 | 3 |
| 2002 | 11 | 6 |
| 2003 | 10 | 9 |
| 2004 | 9 | 10 |
| 2005 | 4 | 2 |
| 2006 | 5 | 3 |
| 2007 | 4 | 4 |
| 2008 | 6 | 16 |
| 2009 | 7 | 11 |
| 2010 | 10 | 10 |
| 2011 | 11 | 15 |
| 2012 | 14 | 17 |
| 2013 | 16 | 18 |
| 2014 | 16 | 24 |
| 2015 | 10 | 23 |
| 2016 | 24 | 16 |
| 2017 | 27 | 15 |
| 2018 | 12 | 20 |
| 2019 | 19 | 21 |
| 2020 | 24 | 17 |
| 2021 | 14 | 8 |
| 2022 | 14 | 23 |
| 2023 | 13 | 14 |
| 2024 | 10 | 11 |
| 2025 | 12 | 10 |
| 2026 | 8 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01H 3/3005Charging means246
- H01H 3/3031Means for locking the spring in a charged state102
- H01H 3/3052Linear spring motors56
- H01H 3/3042Using a torsion spring55
- H01H 2003/3063Decoupling charging handle or motor at end of charging cycle or duringIndexing code39
- H01H 2003/3089Devices for manual releasing of locked charged spring motorIndexing code37
- H01H 2003/3094Allowing an opening - closing - opening [oco] sequenceIndexing code33
- H01H 2003/3068Housing support frame for energy accumulator and cooperating mechanismIndexing code30
All 13 subgroupsShow fewer
- H01H 2003/3073Indication of the charge on the spring motorIndexing code24
- H01H 2003/3057Provisions for avoiding idlingIndexing code23
- H01H 3/3047Adapted for operation of a three-position switch21
- H01H 2003/3084Kinetic energy of moving parts recuperated by transformation into potential energy inIndexing code13
- H01H 2003/3078Using an inertia elementIndexing code9
Recent patents
- Rapid safety switch and rapid safety switch system14 Jul 2026US 12,683,103 B2Siemens Aktiengesellschaft
- Actuation unit for a switching apparatus23 Jun 2026US 12,665,141 B2ABB Schweiz AG
- Electric switching device with improved actuation mechanism2 Jun 2026US 12,646,674 B2Eaton Intelligent Power Limited
- Switch system28 Apr 2026US 12,614,684 B2ABB Schweiz AG
- Automatic drop-out and reset of a vacuum interrupter device in a cutout mounting21 Apr 2026US 12,609,257 B2S&C Electric Company
- Energy storage structure and rotary isolation switch27 Aug 2026US 2026/0251128 A1Chint Low Voltage Electrical Technology Co., Ltd.
- Fast closing of a remotely operated circuit breaker18 Jun 2026US 2026/0171330 A1Schneider Electric USA, Inc.
- Electrical contactor comprising a spring for rapidly driving contacts18 Jun 2026US 2026/0171339 A1Safran Electrical & Power
- Energy harvester actuator4 Jun 2026US 2026/0155764 A1Methode Electronics UK Ltd.
- System and method for detecting discrete open and close states of electrical switching devices9 Apr 2026US 2026/0100319 A1Eaton Intelligent Power Limited
Most cited
By later US patents
- Ankle brace having multiple inflatable aircells155US 5,125,400 AAircast, Inc. · 1992
- Circuit breaker condition indicator apparatus107US 4,301,342 AGeneral Electric Company · 1981
- Operating mechanism for high ampere-rated circuit breakers106US 5,424,701 AGeneral Electric Company · 1995
- Remote controlled circuit breaker with recharging cam104US 5,504,290 AMerlin Gerin · 1996
- Snap acting charge/discharge and open/closed indicators displaying states of electrical switching apparatus93US 5,973,278 AEaton Corporation · 1999