Issued Patents 1989
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864177 | Stator lamination design for two-pole single-phase induction motor | — | 1989-09-05 |
| 4858571 | Liquid pump driven by a two-cycle, dual piston internal combustion engine | — | 1989-08-22 |
| 4855662 | Charging circuitry having polarity detecting protection | — | 1989-08-08 |
| 4851738 | Lighting system having photosensing timing switch circuit | — | 1989-07-25 |
| 4851804 | Thermo-activating breaker | — | 1989-07-25 |
| 4851747 | Non-precise heat control operation periodic positive & reverse circulating fan | — | 1989-07-25 |
| 4841921 | Two-cycle, dual piston internal combustion engine with air turbine driven fuel/air mixture supply | — | 1989-06-27 |
| 4838216 | Four cycle, dual piston internal combustion engine and pump | — | 1989-06-13 |
| 4836150 | Combined fluid pump and two-cycle, internal combustion engine | — | 1989-06-06 |
| 4834354 | Clamp structures | — | 1989-05-30 |
| 4829722 | Light accessory for a bench grinder | — | 1989-05-16 |
| 4828241 | Articulated c-type clamping assembly which is adjustable in length | — | 1989-05-09 |
| 4819924 | Heavy duty vise | — | 1989-04-11 |
| 4812728 | Electro magnetic braking circuit for small single phase induction motors | — | 1989-03-14 |
| 4810137 | Double-use electrical drill | — | 1989-03-07 |
| 4807863 | Vise with two sets of clamping jaws | — | 1989-02-28 |
| 4799336 | Dust collecting system for bench grinder | — | 1989-01-24 |