Patents by Inventor Mary K. McCarty

Mary K. McCarty 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).

  • Container side-wall scraper
    Patent number: 5732434
    Abstract: A scraper is formed by an assembly of upright blades supported by a frame which is fixed over a waste receptacle. Cylindrical containers are scraped by rotation of the container over the assembly of upright blades, the waste products from the containers thereby being deposited in the waste receptacle, without handling. The mechanism may be further automated by the addition of a hand turning assembly or an electric motor assembly which rotates the assembly of upright blades within the container.
    Type: Grant
    Filed: November 14, 1996
    Date of Patent: March 31, 1998
    Inventor: Mary K. McCarty