Patents by Inventor Steven A. Sletten

Steven A. Sletten 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).

  • Device for pressure feeding liquid chemicals into a wooden pole
    Patent number: 4724793
    Abstract: A device for pressure feeding or injecting a liquid chemical such as a fumigant or the like into a wooden pole is described. One form of the invention comprises a plug member having a threaded shank portion and a hexagonal head portion. A longitudinally extending bore extends through the head portion and the shank portion. A one-way check valve is inserted into the outer end of the longitudinally extending bore to provide a means for injecting the liquid chemical into the pole. A bleeder opening is formed in the shank portion which extends outwardly from the longitudinally extending bore to enable air to be discharged therefrom as the liquid chemical is initially injected into the bore. A modified form of the invention is also described.
    Type: Grant
    Filed: September 8, 1986
    Date of Patent: February 16, 1988
    Inventor: Steven A. Sletten