Patents by Inventor Fred G. Bengtson

Fred G. Bengtson 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).

  • Masonry block wall system and method
    Patent number: 5138808
    Abstract: A masonry block system is disclosed incorporating a plurality of courses of masonry block, each block of which is formed with minimum webbing to minimize heat flow therethrough. The wall system is formed into a unitary structure through the utilization of post-tensioning rods tied to reinforcing rods in the wall footer and extending through the voids in the respective blocks to a top plate positioned on top of the wall. The rods are threaded and are post-tensioned; the voids contain a polyurethane foam.
    Type: Grant
    Filed: March 15, 1991
    Date of Patent: August 18, 1992
    Assignee: Superlite Block
    Inventors: Fred G. Bengtson, Donald V. LoPiccolo
  • Masonry block wall system and method
    Patent number: 5007218
    Abstract: A masonry block system is disclosed incorporating a plurality of courses of masonry block, each block of which is formed with minimum webbing to minimize heat flow therethrough. The wall system is formed into a unitary structure through the utilization of post-tensioning rods tied to reinforcing rods in the wall footer and extending through the voids in the respective blocks to a top plate positioned on top of the wall. The rods are threaded and are post-tensioned; the voids contain a polyurethane foam.
    Type: Grant
    Filed: October 14, 1986
    Date of Patent: April 16, 1991
    Assignee: Superlite Builders Supply, Inc.
    Inventors: Fred G. Bengtson, Donald V. LoPiccolo