Patents by Inventor Calvin Chase

Calvin Chase 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).

  • Adjustable control valve system for rotating disc filter and method of operating the system
    Patent number: 5914048
    Abstract: A control system for the vacuum cut-off valve of a rotating disc or drum filter is provided. The control system includes an actuator that is connected to the vacuum cut-off valve for adjusting the rotation of the vacuum cut-off valve with respect to the core. The actuator is linked to a controller which receives communications from a vacuum sensor that senses the level of vacuum inside the vacuum box. The controller sends signals to the actuator to either move the vacuum cut-off valve forward (or to a higher position) or rearward (or to a lower position) in response to the vacuum or pressure level inside the vacuum box.
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: June 22, 1999
    Assignee: Beloit Technologies, Inc.
    Inventor: Calvin Chase