Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5455398 | Mounting support for electrical switches and associated legend plates | Robert P. Healy | 1995-10-03 |
| 5434377 | Pushbuttton electrical switch assembly | James L. Murphy | 1995-07-18 |
| 5408061 | Emergency stop switch | — | 1995-04-18 |
| 5390766 | Indicator panel for elevator cars having an emergency calling device door handle with information and operating aids | — | 1995-02-21 |
| D339543 | Combined face plate and push button actuator of controlling an elevator | — | 1993-09-21 |
| 5201409 | Vandal resistant push button assembly | Richard A. Gregory | 1993-04-13 |
| 5174675 | Guide bar for an elevator door | — | 1992-12-29 |
| 4988986 | Display module and multiple unit display constructed of such display modules | — | 1991-01-29 |
| 4847458 | Electric switch | — | 1989-07-11 |
| 4823926 | Electric motor regulating and control drive having a clutch-brake unit | Hilmar Wittler, Herbert Palloch | 1989-04-25 |
| 4822963 | Vandal resistant push button assembly | — | 1989-04-18 |
| 4742198 | Push button assembly having an actuator subassembly fixed to the innerside of a face plate | Thomas M. Hennessey | 1988-05-03 |
| 4728756 | Key switch having pivotable housing members and contact positioning posts | — | 1988-03-01 |
| 4712660 | Electromotive variable-speed and control drive particularly for use in industrial sewing machines | Hans Erndt, Erich Link, Herbert Palloch, Hilmar Wittler | 1987-12-15 |
| 4709794 | Electromotive variable-speed and control drive particularly for use in industrial sewing machines | Karl Lengsfeld, Erich Link, Hilmar Wittler | 1987-12-01 |
| 4689456 | Key switch having cooperable cams which translate rotary motion to rectilinear | — | 1987-08-25 |