Patents by Inventor David R. Jenista

David R. Jenista 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).

  • Extrusion billet taper quenching system
    Patent number: 5325694
    Abstract: The specification discloses a dynamic self-adjusting taper quenching system for producing isothermal extrusions in a nonferrous extrusion operation. The quenching system includes a quenching unit, a computer for controlling the quenching unit, and an interface for reading the extrusion press ram pressure. A target quenching profile is stored in the computer. The computer samples the ram pressure during extrusion of a quenched billet and adjusts the target quenching profile for subsequent billets as a function of the sampled pressures.
    Type: Grant
    Filed: March 15, 1993
    Date of Patent: July 5, 1994
    Assignee: Granco Clark, Inc.
    Inventor: David R. Jenista
  • Nonferrous extrusion process control system
    Patent number: 5126945
    Abstract: A control system is provided for coordinating and monitoring material flow through a nonferrous extrusion facility. The system maintains first-in/first-out queues between stations within the facility to improve tracking of the material through the process. The extrusion equipment is controlled in response to the queues and to stored job information to move the material efficiently and automatically through each station within the facility.
    Type: Grant
    Filed: February 14, 1990
    Date of Patent: June 30, 1992
    Assignee: Granco Clark, Inc.
    Inventors: David R. Jenista, Todd A. Buiten