Patents by Inventor Jean-Marie M. Pierret

Jean-Marie M. Pierret 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: 5046220
    Abstract: A process for feeding fibres towards the fixed and mobile knives of a fibre cutter, such as a flock cutter, is provided which includes preparing a mattress of fibres aligned in a direction which is substantially perpendicular to the vertical plane of the knife so that the mattress of fibres takes the form of a band. The band is conveyed in a step-by-step manner towards the knives while supporting the band adjacent the fixed knife so that its lower face and its lateral side faces are supported by planer support surfaces having a dimension significant in relation to the length of sections of fibres being cut. The step-by-step conveying is effected by bringing the band to a temporary standstill in relation to the support surfaces as the fibres are advanced towards the cutter.
    Type: Grant
    Filed: April 2, 1990
    Date of Patent: September 10, 1991
    Inventors: Hubert Pierret, Gabriel L. Pierret, Maurice J. Pierret, Jean-Marie M. Pierret
  • Patent number: 4516734
    Abstract: There is described a method and apparatus for loading automatically, machines treating bulk materials in which from the bottom of a material mass is extracted, with projecting elements, an amount of material to form a strip. The strip is fed to the treating machines. The apparatus comprises arranging the projecting elements into at least two rows extending along the strip movement direction, and imparting to at least one element row, an alternating movement along the strip movement direction.
    Type: Grant
    Filed: December 15, 1982
    Date of Patent: May 14, 1985
    Inventors: Luc A. Pierret, deceased, by Joseph Robert, administrator, Hubert Pierret, Gabriel L. Pierret, Maurice J. Pierret, Jean-Marie M. Pierret