Patents Assigned to Wessco, Inc.
  • Patent number: 5466288
    Abstract: A soil substitute material includes from about 2 to about 9 parts by weight of crushed brick; from about 5 to about 25 parts by weight of a filler material; from about 60 to about 90 parts by weight of raw clay; and, from about 0 to about 3 parts by weight of a hydrating material. The material is compacted at from about 3500 to about 5000 pounds per square inch. A method of preparing a soil substitute includes admixing the components with from about 5 to about 18 parts by weight of water and compressing the hydrated mixture at from about 3500 to about 5000 pounds per square inch.
    Type: Grant
    Filed: December 5, 1994
    Date of Patent: November 14, 1995
    Assignee: Wessco, Inc.
    Inventor: John D. Derr
  • Patent number: 5397392
    Abstract: A soil substitute material includes from about 2 to about 9 parts by weight of crushed brick; from about 5 to about 25 parts by weight of a filler material; from about 60 to about 90 parts by weight of raw clay; and, from about 0 to about 3 parts by weight of a hydrating material. The material is compacted at from about 3500 to about 5000 pounds per square inch. A method of preparing a soil substitute includes admixing the components with from about 5 to about 18 parts by weight of water and compressing the hydrated mixture at from about 3500 to about 5000 pounds per square inch.
    Type: Grant
    Filed: March 7, 1994
    Date of Patent: March 14, 1995
    Assignee: Wessco, Inc.
    Inventor: John D. Derr