Patents by Inventor Mike Martinmaas

Mike Martinmaas 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).

  • Unusable milk collection bucket with overflow prevention means
    Patent number: 5138977
    Abstract: A strip bucket utilizable in a cow milking operation is provided with a lid having a ball check valve to prevent bad milk from entering a bulk storage container. Additionally, the ball check valve may be provided with integrally attached milk collection tubes which extend orthogonally outwardly therefrom. Additionally, the ball check valve may be provided with an outwardly extending paddle member which operates to raise a signal flag once a strip bucket has been filled with milk.
    Type: Grant
    Filed: October 7, 1991
    Date of Patent: August 18, 1992
    Inventor: Mike Martinmaas