Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Tork, Inc. Patents
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

 
 
  Recently Added Patents
Optical disc
Travel passenger check-in
Imaging device and image analysis method
Thermoplastic elastomer composition
Process for purifying ethanol
Plants having increased yield-related traits and a method for making the same
Method and pulse-width-modulated current control circuit for driving inductive loads in motor vehicles
  Randomly Featured Patents
Detachable sun shield for caps
Food elevator for a toaster or grill
Process for preparing 1-phenylpyrazoles
Bath aid device
Electrolyte membrane-electrode assembly for fuel cell and operation method of fuel cell using the same
Intraocular lens mechanism
Liquid crystal display device
Sandwich immunoassays for collagen type I degradation products
Navigating multimedia content using a graphical user interface with multiple display regions
Golf club grip with first indicia to indicate where the thumbs and fingers of a player are to be located and other indicia to indicate other areas