Patents by Inventor Stavros C. Stavrinou

Stavros C. Stavrinou 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).

  • Tile product having multiple levels of height, multiple levels of gloss and mortar-line surround
    Patent number: 5112671
    Abstract: A tile product having a substantially non-porous vinyl composition base and a multilevel embossing and gloss which has a mechanically embossed mortar-line surround and which is free of gloss defects formed by pockets of air trapped between the wear layer and embossing mold during embossing is produced by applying a vacuum to the press during embossing. Preferably, the tile is laminated in a hot press heated by RF energy and cooled in a cold press to reduce the temperature of the wear layer to below its glass transition temperature.
    Type: Grant
    Filed: June 4, 1990
    Date of Patent: May 12, 1992
    Assignee: Armstrong World Industries, Inc.
    Inventors: Ivan Diamond, James J. Lawson, Walter J. Lewicki, Jr., Stavros C. Stavrinou
  • Method of reclaiming waste sheet flooring
    Patent number: 4105593
    Abstract: Scrap sheet floor covering is recovered for reuse through the use of a Henschel mixer. The mixer grinds the prediced scrap in the presence of a plasticizer to separate the asbestos containing backing material from the vinyl layer. The resultant blended mix can then be used as a raw material in the manufacture of fiber-filled vinyl tile.
    Type: Grant
    Filed: July 8, 1977
    Date of Patent: August 8, 1978
    Assignee: Armstrong Cork Company
    Inventor: Stavros C. Stavrinou
  • Method of treating waste sheet flooring
    Patent number: 4020020
    Abstract: Scrap sheet floor covering is recovered for reuse through the use of a Banbury mixer. The mixer grinds pre-diced scrap and abrades away asbestos filler backing material from the vinyl wear layer material. Binder scrap or virgin resin and plasticizer is added to convert the scrap sheet floor material to a raw material for use in manufacturing fiber filled vinyl tile.
    Type: Grant
    Filed: June 17, 1975
    Date of Patent: April 26, 1977
    Assignee: Armstrong Cork Company
    Inventors: Francis J. Appleyard, Stavros C. Stavrinou