Patents by Inventor Arthur L. Hilfiker

Arthur L. Hilfiker 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).

  • Soil reinforced cantilever wall
    Patent number: 4643618
    Abstract: A retaining wall for an earthen formation comprising a plurality of soil reinforcing mats and a cantilevered face which is anchored in place at the foot of the formation. The mats are embedded in the formation at vertically spaced levels and secured to the face. In the preferred embodiment the face is in situ formed concrete and the mats comprise welded wire trays with end portions cast in place within the face.
    Type: Grant
    Filed: February 11, 1985
    Date of Patent: February 17, 1987
    Assignee: Hilfiker Pipe Co.
    Inventors: William K. Hilfiker, Arthur L. Hilfiker
  • Wire retaining wall apparatus and method for earthen formations
    Patent number: 4505621
    Abstract: A retaining wall for an earthen formation (E) is provided by welded wire grid work trays (T) having floor sections (10) which are embedded in the formation and face sections (12) which are disposed at the face of the formation. The trays (T) are superimposed one above the other with the edges of the face sections (12) secured together. An improved construction comprising preformed kinked extensions (18) secures the face sections (12) together without the necessity of separate fasteners, or the plastic deformation of the tray wires.
    Type: Grant
    Filed: May 25, 1983
    Date of Patent: March 19, 1985
    Assignee: Hilfiker Pipe Co.
    Inventors: Harold K. Hilfiker, Arthur L. Hilfiker