Patents Assigned to Thomas A. Charles
  • RELATING TO SAMPLE PROCESSING
    Publication number: 20010003652
    Abstract: The invention relates to heat-settable reaction resin systems with low stress properties which assume a low-shrinkage characteristic when prefabricated elastomer particles are incorporated. The total volume shrinkage of the resin formulations produced by the use according to the invention is approximately 35% lower than shrinkage in formulations without elastomer particles.
    Type: Application
    Filed: July 16, 1999
    Publication date: June 14, 2001
    Applicant: Thomas Charles Freeman
    Inventor: THOMAS CHARLES FREEMAN
  • Long range RF tag
    Patent number: 5818382
    Abstract: A long range identification system is disclosed for utilizing a radio frequency (RF) signal sent by a calling location, such as a mass transit vehicle, as the energy source to power response apparatus at a responding location, such as a route stop of the transit vehicle. The responding signal is then broadcast within the transit vehicle as audio or as a video display of a signal from a character generator, or as both audio and video.
    Type: Grant
    Filed: December 28, 1995
    Date of Patent: October 6, 1998
    Assignees: Herman David Palmieri, Thomas A. Charles
    Inventor: Martin A. Gutwerk