Patents by Inventor Steven M. Stensvad

Steven M. Stensvad 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 preparing colorimeter sample
    Patent number: 4582425
    Abstract: The novel device prepares samples of loose particles such as roofing granules to present a level surface from which colorimeter measurements can be made. The particles to be measured overfill a dish, the lip of which has a bevel providing a knife edge at its inner diameter. A roller is rolled back and forth across the dish to push excess particles beyond the knife edge from which they fall through a grid on which the dish rests.
    Type: Grant
    Filed: August 3, 1984
    Date of Patent: April 15, 1986
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Bruce A. Rabine, Steven M. Stensvad