B41J 9/16
Means for cocking or resetting hammers
B41J9/16 (Means for cocking or resetting hammers) appears on 20 US grants and 0 published applications in this corpus.
Search patents in B41J- Granted patents
- 20
- Published applications
- 0
- Assignees
- 14
- Inventors
- 25
- Latest grant
- 6 Sep 1994
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Printer hammerbank with low reluctance magnetics6 Sep 1994US 5,344,242 APrintronix, Inc.
- Matrix printing head with forward and return articulated-armature magnets29 Sep 1992US 5,150,976 ASiemens Nixdorf Informationssysteme Aktiengesellschaft
- Matrix printing head with pivotable armatures29 Jan 1991US 4,988,223 AProtechno Ces GmbH & Co Kg
- Encoder employing a shock absorbing tension spring31 Jul 1990US 4,944,617 ANCR Corporation
- Method and apparatus for measuring displacement of a moveable member of an electromagnetic device by using perturbations in the device's energizing current13 Mar 1990US 4,907,901 ANCR Corporation
No published applications in this class yet.
Most cited
By later US patents
- Matrix printing head with pivotable armatures19US 4,988,223 AProtechno Ces GmbH & Co Kg · 1991
- Impact printing apparatus and method using reluctance switching and a closed loop drive system14US 4,273,039 AHewlett-Packard Company · 1981
- Method and apparatus for measuring displacement of a moveable member of an electromagnetic device by using perturbations in the device's energizing current14US 4,907,901 ANCR Corporation · 1990
- Printing activator test circuit generating back EMF12US 4,706,561 AGenicom Corporation · 1987
- Printer11US 4,189,997 ACanon Kabushiki Kaisha · 1980