Patents Assigned to SA Duhamel
  • Patent number: 5093948
    Abstract: The invention relates to a process of premature wear of textile articles. It is characterized in that instead of using bodies 2 of material known for its abrasive power, the articles are agitated with the bodies 2, which over at least a thick peripheral layer if not in totality have a homogeneous structure of relatively flexible material, having a Shore hardness of between 50 and 70, and an index of compression of 55 to 80, and preferably 65 to 70.
    Type: Grant
    Filed: October 10, 1990
    Date of Patent: March 10, 1992
    Assignee: SA Duhamel
    Inventors: Michel Val, Claude Blankiet