Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Harbey Hubbell, Incorporated Patents
Assignee:
Harbey Hubbell, Incorporated
Address:
Bridgeport, CT
No. of patents:
1
Patents:












Patent Number Title Of Patent Date Issued
4091431 Ground leakage relay circuit May 23, 1978
A ground leakage relay circuit including a core balance transformer through which pass the supply and return line of the circuit to be protected and having a multi-turn secondary winding. A capacitor is connected to be normally charged from a d.c. source. A normally conducting transistor

 
 
  Recently Added Patents
Adapting bit error rate to a target quality of service
Method and apparatus of physically moving a portable unit to view an image of a stationary map
LED current control in a dimmable LED illumination system
Traveling wave amplifier with pre-emphasis function
Methods and apparatus to test multi clock domain data paths with a shared capture clock signal
Methods and systems for forcing an application to store data in a secure storage location
Method for pulse-based ultra-broadband communication between at least one transmitting node and at least one receiving node
  Randomly Featured Patents
Control device for electrically controlled rearview mirror
Business model algorithm
Configuration system and method
Chaotic cipher system and method for secure communication
External preparation for skin
Method for producing a low viscosity spray polyol by reacting an alkylene oxide with the reaction product of a phenol, an amine and a smaller formaldehyde portion
Method and structure for improving power consumption on a component while maintaining high operating frequency
Sensor package for harsh environments
Enhanced power level usage in a radiotelephone system
Method and system for GSM billing during WLAN roaming