Ekhoff; Donald L.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ekhoff; Donald L..The latest application filed is for "vacuum clearing of spindle particulates".
- Ekhoff; Donald L. - Morgan Hill CA US
- Ekhoff; Donald L. - Post Falls ID
- Ekhoff; Donald L. - Gilroy CA
| Patent | Date |
|---|---|
| Precision pneumatic drilling spindle and method Grant 10,293,443 - Ekhoff | 2019-05-21 |
| Marine propulsion system and method Grant 9,884,671 - Ekhoff February 6, 2 | 2018-02-06 |
| Disc spindle with internal particulate removal Grant 8,553,518 - Ekhoff October 8, 2 | 2013-10-08 |
| Vacuum Clearing Of Spindle Particulates App 20130107396 - Ekhoff; Donald L. | 2013-05-02 |
| Marine Propulsion System And Method App 20120244760 - Ekhoff; Donald L. | 2012-09-27 |
| Axial force spindle clamp Grant 8,074,239 - Ekhoff December 6, 2 | 2011-12-06 |
| Marine Propulsion System And Method App 20110045718 - Ekhoff; Donald L. | 2011-02-24 |
| Axial Force Spindle Clamp App 20110016478 - Ekhoff; Donald L. | 2011-01-20 |
| Optically Efficient And Thermally Protected Solar Heating Apparatus And Method App 20100108054 - Ekhoff; Donald L. ; et al. | 2010-05-06 |
| Workpiece levitation using alternating positive and negative pressure flows Grant 6,781,684 - Ekhoff August 24, 2 | 2004-08-24 |
| Air dams positioned between spinning disks for reducing the vibration in a data storage device Grant 6,097,568 - Ekhoff August 1, 2 | 2000-08-01 |
| Apparatus for clamping removable disks Grant 5,056,082 - Ekhoff October 8, 1 | 1991-10-08 |
| Spindle clamp having a unitary lock member Grant 5,048,005 - Ekhoff September 10, 1 | 1991-09-10 |
| Shock start for memory disk motor drives Grant 5,018,029 - Ekhoff , et al. May 21, 1 | 1991-05-21 |
| Flexible rocking mount with forward pivot for polishing pad Grant 4,941,293 - Ekhoff July 17, 1 | 1990-07-17 |
| Incremental stepping assembly for a rotary actuator Grant 4,891,722 - Ekhoff January 2, 1 | 1990-01-02 |
| Air bladder apparatus for positioning a magnetic head Grant 4,862,302 - Ekhoff August 29, 1 | 1989-08-29 |
| Spindle clamp for removable disks Grant 4,755,981 - Ekhoff July 5, 1 | 1988-07-05 |
| Abrading machine for disk shaped surfaces Grant 4,736,475 - Ekhoff * April 12, 1 | 1988-04-12 |
| Rigid disk finishing apparatus Grant 4,671,018 - Ekhoff June 9, 1 | 1987-06-09 |
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