Patents by Inventor David W. Ash

David W. Ash 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).

  • Retaining wall system
    Patent number: 6113316
    Abstract: A retaining wall module (1) comprises a wall panel member (2) having a front and a rear provided with a transverse loop (10) at its rear and a footing member (4) mechanically connected to the panel member (2) by means of engagement with the loop (10). In one embodiment the footing member (4) comprises an elongate base and a head (8) at one end of the base for engagement with the loop (10). Also provided is a retaining wall module comprising a pair of opposing wall panel members (2), each having a front and a rear and provided with a transverse loop (10) at its rear and a footing member (46) extending between the rears of the wall panel members (2) and being mechanically connected to each wall panel member (2) by means of the loops (10).
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: September 5, 2000
    Assignee: Northern Stresswall Canada Ltd.
    Inventor: David W. Ash