Patents Assigned to Andrew Ungerleider
  • Apparatus and method for manufacturing foamed material
    Patent number: 5983671
    Abstract: An apparatus and method for the preferably continuous manufacture of foamed material using a furnace are provided. A two-part mold mechanism is provided that includes an upper portion and a lower portion that are each endless loops and cooperate with one another to form a closed mold within the furnace. The upper and lower portions can each comprise a plurality of transverse mold members that can be easily replaced or exchanged during operation of the apparatus. A feed mechanism is provided for introducing material that is to be foamed to the mold mechanism upstream of the furnace. Scrapers or the like can be provided downstream of the furnace to aid in separating and supporting foamed material from the mold mechanism.
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: November 16, 1999
    Assignee: Andrew Ungerleider
    Inventors: Steven C. Haines, Tai B. Bixby, Ronald D. Argent, Christopher J. Hoyle, David E. Wiltrout
  • Foamed glass article for preparing surfaces, use therefor, and method of making same
    Patent number: 5972817
    Abstract: A foamed glass article for preparing surfaces, the use therefor, and a method of making same are provided. The foamed glass article is in the form of a block, disk or similar product, and is used for preparing surfaces such as by sanding, rubbing and scraping the same to clean, abrade, polish, smooth, or the like such a surface. The foamed glass article is formed from a starting mixture that comprised glass, 0.10-20% by weight of at least one non-carbon/sulfate based foaming agent, and optionally an additional abrasive material. A mixture of powdered glass and non-carbon/sulfate based foaming agent can be placed in a mold and heated so that the mixture sinters and subsequently foams. Thereafter, the foamed mixture is annealed.
    Type: Grant
    Filed: August 3, 1998
    Date of Patent: October 26, 1999
    Assignee: Andrew Ungerleider
    Inventors: Steven C. Haines, Tai B. Bixby, Henry Oat, Carl E. Frahme
  • Foamed glass article for preparing surfaces, use therefor, and method of making same
    Patent number: 5821184
    Abstract: A foamed glass article for preparing surfaces, the use therefor, and a method of making same are provided. The foamed glass article is in the form of a block, disk or similar product, and is used for preparing surfaces such as by sanding, rubbing and scraping the same to clean, abrade, polish, smooth, or the like such a surface. The foamed glass article is formed from a starting mixture that comprised waste glass, 0.10-20% by weight of a non-sulfur based foaming agent, and optionally an additional abrasive material. A mixture of powdered waste glass and non-sulfur based foaming agent can be placed in a mold and heated so that the mixture sinters and subsequently foams. Thereafter, the foamed mixture is annealed.
    Type: Grant
    Filed: December 10, 1996
    Date of Patent: October 13, 1998
    Assignee: Andrew Ungerleider
    Inventors: Steven C. Haines, Tai B. Bixby, Henry Oat, Carl E. Frahme