Patents by Inventor Weldon C. Kiser

Weldon C. Kiser 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).

  • Roofing composites and method
    Patent number: 5914172
    Abstract: There are disclosed novel roofing composites comprising a glass-filter fiber roofing mat and a coating containing elastomeric polysulfide and crumb rubber particles distributed substantially uniformly therethrough. The invention also comprises the methods of forming such roofing composites.
    Type: Grant
    Filed: December 24, 1996
    Date of Patent: June 22, 1999
    Assignee: Environmental, L.L.C
    Inventor: Weldon C. Kiser
  • Composites and method
    Patent number: 5728338
    Abstract: A fire retardant mat is disclosed comprising rubber particles bonded together with a binder containing an elastomeric polysulfide and a polyolefin, with the mat also containing a fire retardant. A composite is also disclosed in which the mat is coated with a fire retardant coating in which an elastomeric polysulfide is part of the coating. Further, there is disclosed a method of making the mat by extrusion and also of placing a fire retardant coating on the mat after extrusion.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: March 17, 1998
    Assignee: Environmental L.L.C.
    Inventor: Weldon C. Kiser
  • Elastomeric polysulfide composites and method
    Patent number: 5587234
    Abstract: An elastomeric polysulfide composite in which rubber particles, particularly crumb rubber, are distributed substantially uniformly through an elastomeric polysulfide layer, roofing made from such composites, and the method of forming roofing in which the composite is associated with a rubber particle mat.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: December 24, 1996
    Assignee: Environmental L.L.C.
    Inventor: Weldon C. Kiser
  • Polysulfide composites and method
    Patent number: 5582898
    Abstract: A fire retardant mat is disclosed comprising rubber particles bonded together with a binder containing an elastomeric polysulfide and a polyolefin, with the mat also containing a fire retardant. A composite is also disclosed in which the mat is coated with a fire retardant coating in which an elastomeric polysulfide is part of the coating. Further, there is disclosed a method of making the mat by extrusion and also of placing a fire retardant coating on the mat after extrusion.
    Type: Grant
    Filed: November 22, 1995
    Date of Patent: December 10, 1996
    Assignee: Environmental L.L.C.
    Inventor: Weldon C. Kiser
  • Elastomeric polysulfide composites and method
    Patent number: 5582864
    Abstract: An elastomeric polysulfide composite in which rubber particles, particularly crumb rubber, are distributed substantially uniformly through an elastomeric polysulfide layer, roofing made from such composites, and the method of forming roofing in which the composite is associated with a rubber particle mat.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: December 10, 1996
    Assignee: Environmental L.L.C.
    Inventor: Weldon C. Kiser
  • Elastomeric polysulfide composites and method
    Patent number: 5580638
    Abstract: An elastomeric polysulfide composite in which rubber particles, particularly crumb rubber, are distributed substantially uniformly through an elastomeric polysulfide layer, roofing made from such composites, and the method of forming roofing in which the composite is associated with a rubber particle mat.
    Type: Grant
    Filed: July 21, 1995
    Date of Patent: December 3, 1996
    Assignee: Environmental L.L.C.
    Inventor: Weldon C. Kiser
  • Roofing composition and method
    Patent number: 5525399
    Abstract: There are disclosed novel polysulfide roofing compositions, combined with rubber particle mats, and bituminous-based roofing compositions containing crumb rubber and an elastomeric polysulfide to give improved impact resistance and the method of making such roofing.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 11, 1996
    Assignee: Environmental L.L.C.
    Inventor: Weldon C. Kiser
  • Elastomeric polysulfide composites and method
    Patent number: 5453313
    Abstract: An elastomeric polysulfide composite in which rubber particles, particularly crumb rubber, are distributed substantially uniformly through an elastomeric polysulfide layer, roofing made from such composites, and the method of forming roofing in which the composite is associated with a rubber particle mat.
    Type: Grant
    Filed: January 26, 1994
    Date of Patent: September 26, 1995
    Assignee: Environmental, L.L.C.
    Inventor: Weldon C. Kiser