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
Aspect ratio enhancement
Method and apparatus for receiving signals in a MIMO system with multiple channel encoders
Device for accurately measuring concentration of component in blood and control method of the device
PCSK9 antagonists
Fingerprinting apparatus, system, and method
Image processing system, image processing method and program for image processing
Vacuum cleaner
  Randomly Featured Patents
Filter core system
Method and apparatus for wideband transmission of digital signals between, for example, a telephone central office and customer premises
Ultrasonic pulse inversion harmonic separation with reduced motional effects
Production method for making an optical member for excimer laser using synthetic quartz glass
Tension servo apparatus for magnetic tape
Muscle building apparatus
Finger ring
Method of manufacturing polycrystalline diamond layers
Device and method for sealing puncture wounds
Gain control for parallel-arranged differential pairs