Patents by Inventor Demetrios V. Halatsis

Demetrios V. Halatsis 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: 4974990
    Abstract: An apparatus for oriented application of a raised pavement marker to a roadway surface includes a reservoir of liquid adhesive; means for discharging a portion of liquid adhesive to form a deposit on the roadway, means for dispensing a raised pavement marker onto the top of the adhesive deposit; and means for aligning the marker at a desired orientation. The apparatus may also include a magazine for storing and sequentially delivering a plurality of raised pavement markers to the means for dispensing. The magazine has inclined walls which accommodate markers with rounded tops and prevent twisting or jamming of the markers.
    Type: Grant
    Filed: October 24, 1989
    Date of Patent: December 4, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Conrad V. Anderson, Patricia L. Gehring, Bradley J. Heath, Russell D. Quam, Demetrios V. Halatsis