B41J 19/34
Escapement-feed character-spacing mechanisms
B41J19/34 (Escapement-feed character-spacing mechanisms) appears on 12 US grants and 0 published applications in this corpus.
Search patents in B41J- Granted patents
- 12
- Published applications
- 0
- Assignees
- 8
- Inventors
- 15
- Latest grant
- 28 May 1996
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 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 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
- B41J 19/58Differential or variable-spacing arrangements7
- B41J 19/40Escapements having a single pawl or like detent1
- B41J 19/42Escapements having two pawls or like detents1
- B41J 19/50Electromagnetically-controlled escapements1
- B41J 19/36Driving mechanisms0
- B41J 19/52Escapements controlling positive-feed mechanism0
- B41J 19/54Construction of universal bars0
- B41J 19/56Escapements controlling web or strip feed0
Recent patents
- Dot matrix printer28 May 1996US 5,520,469 AFuji Xerox Co., Ltd.
- Typewriter carriage escapement mechanism having two sets of teeth15 Dec 1987US 4,712,934 ADobson Park Industries Limited
- Half-spacing feed mechanism for marking machine30 Mar 1982US 4,322,173 A
- Escapement mechanism and backspace mechanism for a moving paper carriage typewriter having dual pitch capability25 Aug 1981US 4,285,605 AInternational Business Machines Corporation
- Arabic language typewriter24 Feb 1981US 4,252,452 ATriumph-Werke Nuremberg A.G.
No published applications in this class yet.
Most cited
By later US patents
- Variable character spacing matrix for proportional spacing printing systems22US 4,225,249 AInternational Business Machines Corporation · 1980
- Tape advance mechanism11US 4,015,700 AKroy Industries Inc. · 1977
- Single element typing for left to right or right to left letter feeding7US 4,198,170 ATriumph Werke Nurnberg A.G. · 1980
- Dot matrix printer5US 5,520,469 AFuji Xerox Co., Ltd. · 1996
- High speed dual pitch impact printer4US 4,235,167 AComputer Peripherals, Inc. · 1980