Patents by Inventor Guy Tuffal

Guy Tuffal 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).

  • Device and method for the centrifuging of mineral fibers
    Patent number: 6596048
    Abstract: The present invention relates to a device for the internal centrifugation of fine mineral fibres, a method for forming fine mineral fibres, and paper containing fine mineral fibres.
    Type: Grant
    Filed: March 27, 2001
    Date of Patent: July 22, 2003
    Assignee: Isover Saint-Gobain
    Inventors: Guy Tuffal, Daniel Guyot
  • Compression coiling machine
    Patent number: 4928898
    Abstract: Strips of mineral fibers are brought into a space defined by three members operated by a movement which drives the coiling of the strip. The third of these members, the compressor roller, is operated at a rotational speed which is a function of a predetermined program while introducing as parameters the length of the strip which has already been coiled and the speed of the feeding conveyor of the strip. The rolls obtained are cylindrical and there are no overcompressed zones.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: May 29, 1990
    Assignee: Isover Saint-Gobain
    Inventors: Yves Audren, Guy Tuffal
  • Relating to compression type rolling machines
    Patent number: 4765554
    Abstract: In the packaging of products such as rolls of mineral wool felts, a series of members entrain the felt into a space in which the rolling-up takes place. At least one of these members is mobile in relation to the others in order to alter the size of the space in which the rolling-up takes place as the roll of felt increases in size. This movable member is a roller whose surface contracting the felt is covered with an inorganic coating resistant to abrasion and adapted to have a rough finish.
    Type: Grant
    Filed: March 11, 1987
    Date of Patent: August 23, 1988
    Assignee: Isover Saint-Gobain
    Inventors: Guy Tuffal, Yves Audren