Patents by Inventor Richard S. Vuketich

Richard S. Vuketich 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).

  • Patent number: 4812822
    Abstract: An electronic article surveillance system employs a resonant tag attached to an article being protected. An interrogation transmitter whose transmission frequency is periodically swept through the resonant frequency of the tag is positioned near an exit of the protected area. The resonant tag is periodically energized by the transmitter as the transmitter frequency passes through the resonant frequency of the tag to cause the tag to emit a periodic tag signal at the sweep rate of the transmitter. The tag signal is received by a receiver that generates an alarm upon the detection of a tag signal. The receiver employs synchronous integration in the form of a dual channel synchronous video integrator to independently process positive and negative pulses of the tag signal in order to differentiate the tag signal from extraneous signals and noise.
    Type: Grant
    Filed: August 31, 1987
    Date of Patent: March 14, 1989
    Assignee: Monarch Marking Systems, Inc.
    Inventors: John F. Feltz, John W. Taylor, Richard S. Vuketich
  • Patent number: 4778552
    Abstract: This invention relates to a deactivatable tag useable with an electronic article surveillance system and comprised of planar conductive material cut into a pair of inverse, first and second spiral conductors wrapped about each other and positioned for capacitive and inductive coupling. The invention also relates to method of making tags wherein conductors are cut from a planar web of conductive material in a continuous process in a manner that the cutting results in the formation of two spiral conductors without accompanying waste of conductive material, and thereafter positioning the conductors to provide resonant circuits.
    Type: Grant
    Filed: April 22, 1987
    Date of Patent: October 18, 1988
    Assignee: Monarch Marking Systems, Inc.
    Inventors: S. Eugene Benge, Warren J. Pape, Richard S. Vuketich