Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5772009 | Operating mechanism for switches and fault interrupters | Joel A. Ramos | 1998-06-30 |
| 5521567 | Switchgear module and configurations, and method of fabrication and assembly thereof | David H. Devonald, III, James A. Hansen, Henry W. Kowalyshen, Chester H. Lin, Buddy B. McGlone +2 more | 1996-05-28 |
| 5504293 | Operating mechanism for electrical switches and fault interrupters | David H. Devonald, III, Edmund S. Dizon, Michael P. O'Dell | 1996-04-02 |
| D367267 | Electrical switchgear module for power distribution systems | Buddy B. McGlone, David H. Devonald, III, James A. Hansen, Henry W. Kowalyshen, Chester H. Lin +2 more | 1996-02-20 |
| D329043 | Insulating through-bushing for an electrical conductor | Leonard V. Chabala | 1992-09-01 |
| 5091616 | Self-contained switch for electrical distribution circuit | Joel A. Ramos, Leonard V. Chabala, Thomas J. Tobin | 1992-02-25 |
| 5075521 | Interrupter switch with coordination of disconnect and interrupter linkage | Thomas Fanta, John Urbanek | 1991-12-24 |
| 5057654 | Interrupting unit with molded housing and shunt current path therethrough | Peter J. Meyer, Leonard V. Chabala | 1991-10-15 |
| D314758 | Design for an interrupter unit for a switch assembly | Leonard V. Chabala | 1991-02-19 |
| 4983792 | Interrupter switch with selective circuit-isolating feature | Leonard V. Chabala, Joel A. Ramos | 1991-01-08 |
| D310823 | Interrupter switch | Leonard V. Chabala | 1990-09-25 |
| 4909463 | Clamping arrangement | Gary J. Zvanut | 1990-03-20 |
| 4677262 | Operator for interrupters and disconnect mechanisms | Joel A. Ramos, Thomas J. Tobin | 1987-06-30 |
| 4669589 | Decoupling arrangement between drive source and power train | — | 1987-06-02 |
| 4636602 | Linear operating mechanism for electrical switches | Walter J. Hall, Chester H. Lin, Joel A. Ramos | 1987-01-13 |
| 4596906 | Arrangement for providing independent rotary and linear drive outputs for high-voltage switches | Leonard V. Chabala, Walter J. Hall, Robert H. Harner, Norman J. Stranczek, Thomas J. Tobin | 1986-06-24 |
| 4268811 | Circuit interrupting device | David M. Evans | 1981-05-19 |
| 4253003 | High voltage switch operating mechanism | David M. Evans | 1981-02-24 |
| 4238657 | Switch operator condition and position indicator mechanism | John C. Opfer | 1980-12-09 |
| 4233483 | Apparatus for connecting a switch operator to a switch | — | 1980-11-11 |
| 4190755 | Switch operator uncoupling mechanism | — | 1980-02-26 |