Patents by Inventor Dorsey S. Dunlap

Dorsey S. Dunlap 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: 4321258
    Abstract: Disclosed herein is a non-toxic composition for mechanically killing insects and the like wherein an attractant for insects is provided and within the attractant there are a plurality of needled particles mixed therewithin so that when the insect encounters the composition the needled particles lacerate the insect.
    Type: Grant
    Filed: August 13, 1980
    Date of Patent: March 23, 1982
    Inventor: Dorsey S. Dunlap
  • Patent number: 4139395
    Abstract: The present invention relates to a thixotropic tire balancing compound which is fed through the inflating valve stem into a tire in relatively small quantities compared to the over-all capacity of the tire. The compound partially liquifies and moves within the tire to maintain the balance of the tire at all times. As the tire wears the compound moves to maintain the balance of the tire and wheel assembly. The compound includes dextrin, albumin, glycerin and sodium silicate.
    Type: Grant
    Filed: June 9, 1976
    Date of Patent: February 13, 1979
    Inventor: Dorsey S. Dunlap