Patents by Inventor Ernest E. Griffin

Ernest E. Griffin 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: 4428183
    Abstract: Carriage for grass trimming device of the type having a rotating cutting element in the form of a length of cord comprises a platform and mounting wheels for moving platform over ground, front wheels being telescopically mounted for extension in a longitudinal and transverse direction, front and rear wheels having eccentric axles so that the carriage height above the ground can be varied, and a clamping structure including a retaining arm having engageable ends for engaging with pivotable clamps for securely and releasably holding the trimming device on the carriage.
    Type: Grant
    Filed: August 25, 1981
    Date of Patent: January 31, 1984
    Inventors: Joseph M. Lowry, Ernest E. Griffin
  • Patent number: 4411126
    Abstract: A wheeled carriage frame has a platform provided with an aperture for receiving and supporting the lower portion of a housing for a grass trimming device so that the cutting element of the device will extend beneath the platform and the motor housing will extend above the platform; the platform has a releasable clamping arm for holding the motor housing in position on the platform; the platform is slidably mounted on the wheeled frame between the front and rear of the frame and gripping devices are provided for holding the platform in a desired position on the frame; the lateral width of the front and rear wheels of the frame are adjustable, as well as the height of the frame, relative to the ground by adjustable axles.
    Type: Grant
    Filed: February 26, 1982
    Date of Patent: October 25, 1983
    Inventors: Joseph M. Lowry, Ernest E. Griffin
  • Patent number: 4389836
    Abstract: A wheeled platform is provided with a centrally located aperture for receiving and supporting the lower portion of a housing for a grass trimming device so that the cutting element of the device will extend beneath the platform and the motor housing will extend above the platform; coupling members are provided on the platform around the aperture and on the trimming device or on a flange member which is attachably connected to the grass trimming device such that the coupling members on the platform portion are offset at a predetermined angular distance from those on, for example, the flange member; the coupling members can be interengaged by orienting the trimming device or the flange member equal to the offset predetermined angular distance and rotated to align with the central longitudinal axis of the platform.
    Type: Grant
    Filed: July 8, 1981
    Date of Patent: June 28, 1983
    Inventors: Joseph M. Lowry, Ernest E. Griffin
  • Patent number: 4343139
    Abstract: A wheeled platform is provided with a centrally located aperture for receiving and supporting the lower portion of a housing for a grass trimming device so that the cutting element of the device will extend beneath the platform and the motor housing will extend above the platform; pivoted arms are mounted on the platform to extend along or across the aperture to engage and hold the housing in position in the aperture on the platform; locking devices are provided on the top of the platform to grasp the ends of the arms to hold them in a closed position; a telescoping handle is pivotally mounted on one end of the platform on the top side thereof.
    Type: Grant
    Filed: April 8, 1981
    Date of Patent: August 10, 1982
    Inventors: Joseph M. Lowry, Ernest E. Griffin
  • Patent number: 4341060
    Abstract: A wheeled platform is provided with a centrally located aperture for receiving and supporting the lower portion of a housing for a grass trimming device so that the cutting element of the device will extend beneath the platform and the motor housing will extend above the platform; pivoted arms are mounted on the platform to extend along or across the aperture to engage and hold the housing in position in the aperture on the platform; locking devices are provided on the top of the platform to grasp the ends of the arms to hold them in a closed position; a telescoping handle is pivotally mounted on one end of the platform on the top side thereof.
    Type: Grant
    Filed: February 2, 1981
    Date of Patent: July 27, 1982
    Inventors: Joseph M. Lowry, Ernest E. Griffin
  • Patent number: 4287709
    Abstract: A wheeled platform is provided with a centrally located aperture for receiving and supporting the lower portion of a housing for a grass trimming device so that the cutting element of the device will extend beneath the platform and the motor housing will extend above the platform; pivoted arms are mounted on the platform to extend along or across the aperture to engage and hold the housing in position in the aperture on the platform; locking devices are provided on the top of the platform to grasp the ends of the arms to hold them in a closed position; a telescoping handle is pivotally mounted on one end of the platform on the top side thereof.
    Type: Grant
    Filed: February 6, 1980
    Date of Patent: September 8, 1981
    Inventors: Joseph M. Lowry, Ernest E. Griffin