Patents by Inventor Jean E. Leroux

Jean E. Leroux 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: 4418775
    Abstract: The invention relates to a device used for driving the endless track of an earthworking machine or implement comprising a main drive sprocket provided with a plurality of teeth, which cooperate with a pinion whose outer teeth have a shape corresponding to that of the driving fingers of the endless, the said main drive sprocket being, on the one hand, mounted for rotation on a support secured to the chassis of the machine, and on the other hand, coupled to an hydraulic motor which drives it in rotation and is mounted on the said support, via the said pinion, which is wedged on the output shaft of the said hydraulic motor. The support which is common to the main drive sprocket, to its driving pinion and to the hydraulic motor has a vertical plane of symmetry which merges with the plane of symmetry common to the main drive sprocket and to its driving pinion. The invention finds an application in hydraulic shovels with caterpillar tracks.
    Type: Grant
    Filed: July 10, 1980
    Date of Patent: December 6, 1983
    Assignee: Poclain
    Inventor: Jean E. Leroux
  • Patent number: 3987560
    Abstract: This invention relates to a device for assembling a bucket on a frame comprising, in addition to said bucket, a zone of articulation of this bucket at a determined spot on the frame, disposed so that the resultant configuration enables the material to be loaded into the bucket and another zone of articulation of the bucket at another spot on the frame, disposed so that the other resultant configuration enables the material contained in the bucket to be unloaded. The changes in configuration are made by pins controlled by jacks and introduced selectively into orifices, the controls of the jacks being synchronized so as to permanently provoke the insertion of certain of the pins into the orifices of at least one of said two zones. One application of the present invention is the production of a loader bucket.
    Type: Grant
    Filed: July 14, 1975
    Date of Patent: October 26, 1976
    Assignee: Societe Anonyme: Poclain
    Inventor: Jean E. Leroux
  • Patent number: 3963134
    Abstract: A dual function machine having a frame and a boom and means for adjusting the relative position of the frame and the boom, the frame having two mounting points each co-operable with a respective coupling on the boom to mount the boom on the frame in two different configurations. One of the configurations permits the machine to perform one function whilst the other configuration permits the machine to perform another function.
    Type: Grant
    Filed: April 3, 1975
    Date of Patent: June 15, 1976
    Assignee: Poclain
    Inventor: Jean E. Leroux