Patents by Inventor Mark I. Stein

Mark I. Stein 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).

  • Apparatus for loading and compacting waste material
    Patent number: 5551336
    Abstract: A combined compactor and material mover is provided. The compactor and material mover apparatus includes a housing defining a compression zone, a mechanism for dumping waste material into the compression zone, and a mechanism for compacting the waste material in the compression zone and moving the compacted waste material into a refuse storage unit. The apparatus further includes a mechanism, in the form of a cam and cam follower, for operatively connecting the dumping and compacting mechanisms to coordinate operation thereof.
    Type: Grant
    Filed: February 23, 1995
    Date of Patent: September 3, 1996
    Assignee: Griffin, Industries, Inc.
    Inventors: Dennis B. Griffin, Mark I. Stein, Don F. Greis