Patents by Inventor Darrel D. Farris

Darrel D. Farris 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: 4166481
    Abstract: A toxic liquid is transferred from a closed shipping container to a dispensing tank without contamination of the operator or the ambient environment by placing the container in a sealed chamber and forcing a container puncturing probe through the interior of the chamber and entirely through the closed container. The probe extends in a slidable and sealed relation through a lid of the sealed housing and is driven through the container by a lever. Both liquid flow and air relief conduits connect the chamber to the dispensing tank to permit gravity or powered flow of the toxic liquid from the sealed chamber. The probe is hollow and is employed to spray a rinsing liquid into both the container and the chamber after they have been emptied of the toxic liquid.
    Type: Grant
    Filed: May 30, 1978
    Date of Patent: September 4, 1979
    Inventors: Darrel D. Farris, Dan Riggi