Patents by Inventor Christopher P. Beaudin

Christopher P. Beaudin 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: 5733095
    Abstract: In machines having a bucket that is capable of carrying a load of material, it is well know that when the machine is traveling over rough terrain or encounters other obstacles the machine may bounce or the operator may be subjected to a jolt due to a change in force acting on the lift actuator. Accumulators have been connected to the loaded end of the lift actuator to cushion or dampen the sudden changes in the forces. When the machine is used without the accumulator connected to the lift actuator a pressure balancing valve mechanism is provided to maintain a pre-charge in the accumulator greater than or equal to the pressure in the head end of the lift actuator when the ride control comes on. In order to ensure that the pressure in the accumulator is always equal to the pressure in the head end of the lift actuator when ride control comes on, the accumulator is selectively connected to the implement pump or the reservoir.
    Type: Grant
    Filed: October 1, 1996
    Date of Patent: March 31, 1998
    Assignee: Caterpillar Inc.
    Inventors: Marvin K. Palmer, Victor A. Simkus, Christopher P. Beaudin, Bryan A. Vogt