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
Method and system for electronic assistance in dispensing pharmaceuticals
Media processing method and device
Nano-pigment inkjet ink composition that has a low odor and is environmentally-friendly
Device and method including a soldering process
Laser protection polymeric materials
Method for facilitating assessment of a coursework answer and moderating the assessment
Method and apparatus for power management control of an embedded memory having sleep and shutdown features
  Randomly Featured Patents
Intra-arterial stent with the capability to inhibit intimal hyperplasia
Meeting visualization system
Coded key system using pulse polarity
Pulsed laser
Sport bench
Inspecting method and inspecting apparatus for liquid crystal display panel whereby the cell gap is inspected
Flexible account reconciliation
Cathode composition and method of making same
Adaptive adjustment of time and frequency domain equalizers in communications systems
Image processing method and apparatus and image processing system