Patents by Inventor Dennis McWilliams

Dennis McWilliams 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).

  • Publication number: 20220218896
    Abstract: An apparatus for drug delivery is presented in accordance with aspects of the present disclosure. The apparatus includes a laser-driven photoacoustic microfluid pump (LDMP), an open tube capillary including a first end and a second end; the first end disposed on the LDMP, the open tube capillary configured to store a drug. The LDMP is configured to generate a fluidic jet from the drug and deliver the drug.
    Type: Application
    Filed: May 20, 2020
    Publication date: July 14, 2022
    Inventors: Jiming Bao, Wei-Kan Chu, Feng Lin, Shuai Yue, Di Chen, Dennis McWilliams
  • Patent number: 5575225
    Abstract: An apparatus for filling a grain drill with grain includes a grain hopper and a manifold assembly. The hopper includes an open upper portion and a lower portion, and a conveying conduit communicates with an outlet in the lower portion of the hopper such that grain exits the outlet into the conduit. An air blower device is positioned at an end of the conveying conduit and forces pressurized air through the conduit and beneath the hopper outlet. The air in the conveying conduit entrains grain exiting the outlet and carries the grain along the conduit to the manifold assembly mounted on the planting apparatus. The grain and air pass into a manifold tube having a delivery slot and air exhaust apertures, with the grain passing through the slot into the grain drill and the air exiting through the exhaust apertures. The hopper, blower device and conduit may be formed as a stand alone unit which, during filling, is connected to the manifold assembly that is secured to the grain drill.
    Type: Grant
    Filed: February 27, 1995
    Date of Patent: November 19, 1996
    Assignee: Unverferth Manufacturing Company, Inc.
    Inventors: David R. Smith, Robert Kepple, Dennis McWilliams