Patents by Inventor Willis C. Pulver

Willis C. Pulver 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).

  • Patent number: 3933254
    Abstract: A machine for feeding into a stack and removing from a stack baking pans and the like wherein there is provided a transfer conveyor, a pan carrier, a pan dropping mechanism for sequentially separating baking pans from the transfer conveyor and depositing the baking pans on the pan carrier, a pan lifting mechanism for sequentially lifting baking pans from the pan carrier and engaging the baking pans with the transfer conveyor. The carrier drive mechanism disclosed drives the pan carrier upwardly toward the transfer conveyor during unstacking and downwardly away from the transfer conveyor during stacking. A control mechanism is disclosed for selectively operating the transfer conveyor in a pan unstacking mode and in a pan pass-through mode and in a pan stacking mode.A complete system for feeding baking pans and the like upon demand to a process station is shown including a process station, a baking pan handling station, sensing mechanism and control mechanism.
    Type: Grant
    Filed: March 8, 1973
    Date of Patent: January 20, 1976
    Assignee: Velten & Pulver, Inc.
    Inventors: Willis C. Pulver, Henry A. Heide