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Tork, Inc. Patents |
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Assignee: Tork, Inc.
Address: Mt. Vernon, NY
No. of patents: 3
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 4687985 |
Two terminal control switch having a main switch and a saturable current transformer whose prima |
August 18, 1987 |
| A two terminal control switch having a main switch and a saturable current transformer whose primary winding is series connected with the main switch. A center tapped full wave rectifier has a capacitor connected between its DC sides, such capacitor also being connected to a junction |
| 4349863 |
Emergency lighting system |
September 14, 1982 |
| A lighting system for supplying AC power normally, and DC power on an emergency basis selectively, to electron discharge devices, particularly fluorescent lamps; thus, the AC or DC power is furnished over common lines to a high frequency inverter associated with each lamp or lamp fixture |
| 4071749 |
Self-contained maintenance-free emergency lighting |
January 31, 1978 |
| A self-contained maintenance-free emergency lighting system involving a housing including a tough plastic cover so as to protect the system from vandalism; in order to test the system to determine whether it is operating properly, i.e., such that the emergency battery supply will fur |
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