Patents by Inventor Fred Curtis Archer

Fred Curtis Archer 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).

  • Means for holding dies in a jaw crusher
    Patent number: 3984058
    Abstract: A securing means for supporting a stationary die plate in a jaw crusher including the combination of angular cored pockets located in the vertical side walls of the stationary die plate and a plurality of lever-like angular wedges which are receivable in the pockets in such a manner that the stationary die plate can be forced against a supporting wall. The lever-like wedges are pivotably mounted against side walls of the jaw crusher and are bolted to the side walls in such a manner that tightening of the bolts causes the ends of the wedges which are received in the angular pockets of the die plates to apply compressive forces against the die plate forcing the die plate against the supporting wall.
    Type: Grant
    Filed: November 26, 1975
    Date of Patent: October 5, 1976
    Assignee: Barber-Greene Company
    Inventors: Fred Curtis Archer, Joseph Batch