Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6970059 | Slot motor including legs engaging openings of circuit breaker housing and electrical switching apparatus employing the same | Thomas A. Whitaker | 2005-11-29 |
| 6747534 | Circuit breaker with dial indicator for magnetic trip level adjustment | Wayne C. Sumpman, James Alan Trax | 2004-06-08 |
| 6229418 | Circuit breaker with lockable trip unit | Wayne C. Sumpman | 2001-05-08 |
| 6144271 | Circuit breaker with easily installed removable trip unit | David A. Parks, Thomas A. Whitaker | 2000-11-07 |
| 6140897 | Circuit breaker with externally lockable secondary cover latch | David B. Miller, David M. Werling | 2000-10-31 |
| 6137385 | Circuit breaker with side wall opening for a separate auxiliary device actuation lever | Christopher J. Conway, Thomas A. Whitaker | 2000-10-24 |
| 6137386 | Circuit breaker with trip unit mounted tripping plunger and latch therefore | — | 2000-10-24 |
| 6100777 | Multi-pole circuit breaker with multiple trip bars | Wayne C. Sumpman | 2000-08-08 |
| 6084188 | Circuit interrupter with non-symmetrical terminal collar | Thomas A. Whitaker, Wayne C. Sumpman | 2000-07-04 |
| 5483213 | Terminal block with terminal-locking slot | Arthur D. Carothers | 1996-01-09 |
| 5412167 | Locking device for an electrical switch | Glen Charles Sisson, James Gerard Maloney, David A. Parks, Arthur D. Carothers, William E. Beatty, Jr. | 1995-05-02 |
| 5076544 | Connecting apparatus of a hoist drum | — | 1991-12-31 |
| 4970026 | Corrosion inhibitor | Michael A. Mullins, Peter A. Thomas | 1990-11-13 |