Patents by Inventor Roger L. Kennedy

Roger L. Kennedy 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).

  • Controlling secondary air injection in engine exhaust
    Publication number: 20020162323
    Abstract: A solenoid operated valve suitable for controlling flow of air for injection into the exhaust of an engine, the poppet is connected to the solenoid armature in a lost-motion connection. Upon energization, the armature achieves momentum during the lost-motion movement and imports an impulse to the poppet to ensure movement in the event of any tendency of the poppet to stick. A one-way valve prevents exhaust back pressure from opening the poppet.
    Type: Application
    Filed: May 2, 2001
    Publication date: November 7, 2002
    Applicant: EATON CORPORATION
    Inventors: Charles A. Detweiler, Kenneth J. Parker, Roger L. Kennedy, Janet L. Hawkins
  • Proportional solenoid for purging fuel vapors
    Patent number: 6363920
    Abstract: An improved regulator valve 10 for controlling the purging of fuel vapors collected in a canister 12 and an evaporative emission control system into an intake system 18 of an internal combustion engine employs a solenoid valve assembly 40 with an armature 86 disposed outside of the coil 58 to operate with low friction. A spring 90 separating the armature 86 from the valve member 98 allows the spring 98 to absorb most of the magnetic and gravitational side loading.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: April 2, 2002
    Assignee: Eaton Corporation
    Inventors: Kenneth J. Parker, John A. Ness, Andrew W. Westergaard, Roger L. Kennedy, Jr.
  • Method of energizing solenoid operated valves
    Patent number: 6364281
    Abstract: A solenoid operated valve is controlled upon increasing energization for greater flow by incrementing by a small fraction of the maximum current a target current level for the desired flow for a short duration followed by energization at the target level. Upon decreasing energization for lesser flow, the valve is energized at a target current decremented by a small fraction of the maximum current for a short duration. The result is a nearly negligible hysteresis.
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: April 2, 2002
    Assignee: Eaton Corporation
    Inventors: Daniel L. DeLand, Andrew W. Westergaard, Kenneth J. Parker, Roger L. Kennedy, Jr.