Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5477030 | Cooking apparatus, latching construction therefor and methods of making the same | David D. Martin, Eric V. Russ | 1995-12-19 |
| 5310970 | Pressure operated switch construction and method of making the same | William J. Kaigler, David T. Llewellyn | 1994-05-10 |
| 5257002 | Temperature operated switch construction and method of making the same | David D. Martin | 1993-10-26 |
| 5247275 | Temperature operated switch construction, terminal block therefor and methods of making the same | Joseph J. Erdelsky | 1993-09-21 |
| 5243875 | Control device, parts therefor and methods of making the same | David D. Martin | 1993-09-14 |
| 5231368 | Temperature operated switch construction, terminal block therefor and methods of making the same | Joseph J. Erdelsky, David M. Martin | 1993-07-27 |
| 5200732 | Temperature operated switch construction, terminal block therefor and methods of making the same | Joseph J. Erdelsky | 1993-04-06 |
| 5198632 | Pressure operated switch construction and method of making the same | William J. Kaigler, David T. Llewellyn | 1993-03-30 |
| 5193411 | Control device, parts therefor and methods of making the same | David D. Martin | 1993-03-16 |
| 5182539 | Temperature operated switch construction, terminal block therefor and methods of making the same | Joseph J. Erdelsky, David M. Martin | 1993-01-26 |
| 5166657 | Temperature operated switch construction and method of making the same | David D. Martin | 1992-11-24 |
| 5148142 | Temperature operated switch construction, terminal block therefor and methods of making the same | Joseph J. Erdelsky | 1992-09-15 |
| 5140742 | Method of making a pressure operated switch | William J. Kaigler, David T. Llewellyn | 1992-08-25 |
| 5136129 | Pressure operated switch construction and method of making | William J. Kaigler, David T. Llewellyn | 1992-08-04 |
| 4800633 | Method of making a water level control device | David T. Llewellyn | 1989-01-31 |
| 4696204 | Water level control device and method of making the same | David T. Llewellyn | 1987-09-29 |
| 4399606 | Method of making a responsive control device | — | 1983-08-23 |
| 4300396 | Pressure responsive control device and method of making the same | — | 1981-11-17 |
| 4296603 | Temperature responsive piston and cylinder unit having a heater carried thereby | Siegfried E. Manecke | 1981-10-27 |
| 4295019 | Water level control device and method of making the same | — | 1981-10-13 |
| 4206780 | Pressure operated water level control device and temperature responsive unit therefor or the like | Siegfried E. Manecke | 1980-06-10 |