Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9539646 | Self-synchronizing tap driver for rigid/synchronous tapping with adjustable tension and/or compression | Mark Johnson | 2017-01-10 |
| 8550755 | Tap driver for rigid/synchronous tapping | Mark Johnson | 2013-10-08 |
| 8162573 | Self-reversing tapping system | Mark Johnson | 2012-04-24 |
| 7707731 | Marking device for rotational machines | Mark Johnson | 2010-05-04 |
| 7708506 | Self-synchronizing tap driver for rigid tapping with starting force adjustment | Mark Johnson | 2010-05-04 |
| 6569022 | Self-synchronizing tap driver for rigid tapping | Mark Johnson | 2003-05-27 |
| 6348003 | Self-synchronizing tap driver for rigid tapping | Mark Johnson | 2002-02-19 |
| 5865575 | Self-reversing tapping attachment with shock absorption | — | 1999-02-02 |
| 5628593 | Readily disassembleable tapping attachment with quick change replaceable and maintainable parts and method | — | 1997-05-13 |
| 5358362 | Tapping attachment for radial tapping | — | 1994-10-25 |
| 5271697 | Tap and quick change tap holder assembly | Peter Brandenberger | 1993-12-21 |
| 5209616 | Drive in tapping attachments | — | 1993-05-11 |
| 5203651 | Tapping attachments | — | 1993-04-20 |
| 5131794 | Dog drive for tapping attachments | — | 1992-07-21 |
| 5011344 | Positive drive adapter | — | 1991-04-30 |
| 4832542 | Clutching means adapted for tapping attachment | Alf Eriksson | 1989-05-23 |
| 4722643 | Tapping attachment adapted for numerical computer control | — | 1988-02-02 |
| 4566829 | Tapping attachment and indexing mechanism therefor | — | 1986-01-28 |
| 4531865 | Tapping attachment adapted for numerical computer control | — | 1985-07-30 |