Patents by Inventor Jean C. Van Dest

Jean C. Van Dest 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).

  • Arrangement for driving two wheels of the same axle in rotation, with a regulation of their rotational speeds
    Patent number: 5263905
    Abstract: The invention provides an arrangement for driving in rotation two transmission shafts (18) of a motor-driven road vehicle, each connected to a wheel of the same axle, characterised in that each of the two transmission shafts (18) is connected to the engine unit (10) of the vehicle by means of a device (22) allowing a variable slip between its input member (40) and its output member (36), and means for controlling the two variable-slip devices (22), which regulate the rotational speeds of the two transmission shafts in order to keep these speeds within a specific range of relative variation.
    Type: Grant
    Filed: March 24, 1992
    Date of Patent: November 23, 1993
    Assignee: Glaenzer Spicer
    Inventor: Jean C. Van Dest
  • Axially retained wide flexing angle homokinetic joint
    Patent number: 4908005
    Abstract: An axially retained homokinetic joint comprises an element in the form of a tripod (20) connected to one (22) of two shafts to be coupled and a tulip element (42) connected to the other (34, 134) of the two shafts, the tripod element comprising three trunnions (26a) on which are rotatively and slidably mounted rollers (36a) received in three rolling tracks (40) formed in the tulip element, and are an axial retainer (44) for maintaining the two parts of the joint in position relative to each other. The axial retainer comprises an intermediate member (44) connected to the tulip element (42) and cooperating with the tripod element (20) by means of a connection enabling the latter to move in a plane at right angle to its axis (X--X). The rolling tracks (40) consist of tracks of substantially toroidal shape in which run rollers whose outer surface is spherical.
    Type: Grant
    Filed: September 22, 1989
    Date of Patent: March 13, 1990
    Assignee: Glaenzer-Spicer
    Inventors: Jean C. Van Dest, Pierre Guimbretiere, Bernard Poulain, Francois Verbrugge
  • Crop gathering apparatus
    Patent number: 4069650
    Abstract: The crop gathering reel of a combine is mounted on a pair of reel support arms each in the form of a hydraulic piston and cylinder assembly having widely spaced load-bearing lands which enable the arms to withstand the bending loads arising from supporting the reel in cantilever fashion while permitting adjustment of the reel position forwards and rearwards.
    Type: Grant
    Filed: September 27, 1976
    Date of Patent: January 24, 1978
    Assignee: Massey-Ferguson Services N.V.
    Inventors: Marc Montanari, Jean C. Van Dest
  • Synchronizing mechanism for change speed gears
    Patent number: 4008624
    Abstract: A synchronizing mechanism for change speed gears using a friction energized synchronizer ring which is operable through stop and locking members to prevent collapse of the synchronizer ring until synchronism occurs, also employs a cup member to contain the synchronizer ring for the purpose of freeing the same from adverse frictional effects.
    Type: Grant
    Filed: April 23, 1975
    Date of Patent: February 22, 1977
    Assignee: Massey-Ferguson Services N.V.
    Inventor: Jean C. Van Dest