Patents Assigned to Glowcore Acquisition Company
  • Water boiler with metal core
    Patent number: 6158396
    Abstract: This invention relates to a natural gas fired water boiler having a spirally wrapped finned heat exchanger surrounding a burner. The center of the heat exchanger being plugged by a metal core having a constantly reducing diameter truncated cone top.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: December 12, 2000
    Assignee: Glowcore Acquisition Company, Inc.
    Inventors: David Lackstrom, John Horrocks
  • Water boiler with metal core
    Patent number: 5782208
    Abstract: This invention relates to a natural gas fired water boiler having a spirally wrapped finned heat exchanger surrounding a burner. The center of the heat exchanger being plugged by a metal core having a constantly reducing diameter truncated cone top.
    Type: Grant
    Filed: June 11, 1996
    Date of Patent: July 21, 1998
    Assignee: Glowcore Acquisition Company
    Inventors: David Lackstrom, John Horrocks
  • High efficiency water boiler having finned heat exchanger
    Patent number: 5671700
    Abstract: This invention relates to a natural gas fire water boiler having a spirally wrapped finned heat exchanger surrounding a burner. The center of the heat exchanger being plugged by a core having a constantly reducing diameter truncated cone top.
    Type: Grant
    Filed: September 8, 1995
    Date of Patent: September 30, 1997
    Assignee: Glowcore Acquisition Company
    Inventor: David Lackstrom