Patents by Inventor Joel Denning

Joel Denning 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: 6135580
    Abstract: A braking apparatus includes a brake cylinder having a first brake opening and a second brake opening defined therein. The first brake opening is adapted to allow a flow of brake fluid to enter the brake cylinder and the second brake opening is adapted to allow the flow of brake fluid to exit the brake cylinder. The braking apparatus also includes a first transmission opening and a second transmission opening defined in the brake cylinder. The first transmission opening is adapted to allow a flow of transmission fluid to enter the brake cylinder and the second transmission opening is adapted to allow the flow of transmission fluid to exit the brake cylinder. The braking apparatus further includes a movable member located within the brake cylinder.
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: October 24, 2000
    Assignee: Caterpillar Inc.
    Inventor: Joel Denning