Patents Assigned to Grantlin, Inc.
  • Magnetic sealing apparatus for portal covering
    Patent number: 6942001
    Abstract: An apparatus comprising a magnetic sealing system for urging opposing sides of a cover toward the lateral margins of a portal to promote sealing of the sides of the cover to the lateral margins of the portal. The magnetic sealing system biases the opposing ends of a first or second rod directly toward the lateral margins to effect a proper seal.
    Type: Grant
    Filed: September 4, 2003
    Date of Patent: September 13, 2005
    Assignee: Grantlin, Inc.
    Inventors: Grant W. Crider, Charles Harbison