Patents by Inventor Eric A. Metz

Eric A. Metz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Traffic signal operation during power outages
    Patent number: 6965322
    Abstract: In a control system for controlling traffic signal lights, normally supplied with power from the AC source, the combination comprising flasher means electrically connectible to the lights to cause the lights to come ON and OFF, repeatedly, an electrical power storage device electrically connectible to the flasher means for supplying electrical power to operate the flasher means when AC source power is not supplied to the traffic control system, and a charging device for charging the storage device when AC power is normally supplied to the traffic control system.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: November 15, 2005
    Inventors: Eric A. Metz, Ramey B. Metz
  • Traffic signal operation during power outages
    Publication number: 20050012641
    Abstract: In a control system for controlling traffic signal lights, normally supplied with power from the AC source, the combination comprising flasher means electrically connectible to the lights to cause the lights to come ON and OFF, repeatedly, an electrical power storage device electrically connectible to the flasher means for supplying electrical power to operate the flasher means when AC source power is not supplied to the traffic control system, and a charging device for charging the storage device when AC power is normally supplied to the traffic control system.
    Type: Application
    Filed: July 18, 2003
    Publication date: January 20, 2005
    Inventors: Eric Metz, Ramey Metz
  • Inks for ink jet printing
    Patent number: 4229219
    Abstract: Inks comprising crystal violet and the n-butyl ether of diethylene glycol exhibits great antimicrobial action and are particularly suited for use in ink jet printing.
    Type: Grant
    Filed: August 24, 1979
    Date of Patent: October 21, 1980
    Assignee: International Business Machines Corporation
    Inventor: Eric A. Metz