Patents by Inventor John Woffenden

John Woffenden 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).

  • Cooling fluid circulation in an annular disc brake
    Patent number: 4113067
    Abstract: Fluid passages machined in the annular brake piston and in the outboard brake ring of a wet disc brake system allows the circulation of cooling and lubricating fluid. An annular disc brake will deliver cooling fluid to the circumferential periphery of the brake disc operating cavity where the fluid relief passages machined in the annular brake piston and in the outboard brake ring will allow the passage of this fluid out of the brake disc operation cavity thus preventing the stagnation of cooling fluid in the brake disc operating cavity.
    Type: Grant
    Filed: June 30, 1977
    Date of Patent: September 12, 1978
    Assignee: International Harvester Company
    Inventors: Robert R. Coons, Richard G. Hennessey, John Woffenden