B23B 31/226
Jaws in the form of conical elements
Official title: {Jaws in the form of conical elements}
B23B31/226 (Jaws in the form of conical elements) appears on 8 US grants and 0 published applications in this corpus.
Search patents in B23B- Granted patents
- 8
- Published applications
- 0
- Assignees
- 4
- Inventors
- 14
- Latest grant
- 23 Nov 1999
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Quick clamp23 Nov 1999US 5,988,957 ABlack & Decker Inc.
- Quick release chuck device26 May 1998US 5,755,448 APower Tool Holders Incorporated
- Keyless drill chuck11 Oct 1994US 5,354,075 ASmith & Nephew Richards Inc.
- Self-gradually locking chuck7 Aug 1990US 4,946,179 AOrthofix S.r. L.
- Self-gradually locking chuck9 May 1989US 4,828,277 AOrthofix S.r. L.
No published applications in this class yet.
Most cited
By later US patents
- Keyless self-tightening chuck49US 4,305,597 ABlack & Decker Inc. · 1981
- Self-gradually locking chuck48US 4,828,277 AOrthofix S.r. L. · 1989
- Self-tightening keyless chuck47US 4,275,893 ABlack & Decker Inc. · 1981
- Self-gradually locking chuck41US 4,946,179 AOrthofix S.r. L. · 1990
- Keyless chuck38US 4,252,333 ABlack & Decker Inc. · 1981