Patents by Inventor Las F. Lawson

Las F. Lawson 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).

  • Patent number: 3978547
    Abstract: A brake housing cleaner that comprises a rigid curvilinear bonnet adapted to fit snugly over a brake housing, the bonnet which passes over the housing, the rim member being of an elastic material such as rubber, which is of a size and shape as to provide the snug fit over the housing. The bonnet is equipped with an opening connected by means of a hose to an air vacuum means. The wall of the bonnet is equipped with a plurality of apertures, each of which is provided with a rubbery material equipped with a self-closing lip through which an air nozzle can be inserted whereby to effect a resilient snug fit between the outside wall of the nozzle and the sides of the self-closing lip. In a partiularly preferred form of the invention, the said apertures are positioned substantially nearer the opening of the bonnet which passes over the brake housing than to the opening connecting the bonnet to the air vacuum means.
    Type: Grant
    Filed: December 22, 1975
    Date of Patent: September 7, 1976
    Inventor: Las F. Lawson