Patents Assigned to American Patent Group
  • Sealant containing partially hydrolized tetraalkoxy silone, for air conditioning and refrigeration circuits
    Patent number: 5417873
    Abstract: An improved sealant for sealing leaks in pipelines and refrigeration and air conditioning circuits includes a partially hydrolized tetra methoxy silane along with another organo silane sealant. The use of a partially hydrolized tetra alkoxy silane, such as partially hydrolized tetramethoxy silane, in place of an unhydrolized tetra alkoxy silane, gives a stronger and tougher and more elastic seal, and the partially hydrolized material is less toxic than the unhydrolized material.
    Type: Grant
    Filed: February 2, 1994
    Date of Patent: May 23, 1995
    Assignee: American Patent Group, Inc.
    Inventor: Joseph J. Packo
  • Reclaiming of refrigerant fluids to make same suitable for reuse
    Patent number: 5050388
    Abstract: A system to remove moisture chemically from refrigerant fluid being recaptured, recycled or reclaimed comprises adding an appropriate organosilane to the refrigerant being treated in the reclamation/recycling apparatus.
    Type: Grant
    Filed: June 4, 1990
    Date of Patent: September 24, 1991
    Assignee: American Patent Group
    Inventor: Joseph J. Packo