Patents by Inventor Didier Bredif

Didier Bredif 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).

  • Coupling for axially locking a reel of a tape cassette and for driving it without backlash
    Patent number: 5183219
    Abstract: A coupling for axially locking each reel of a cassette relative to the drive wheel of a magnetic recorder in which the drive wheel has an axial abutment against which the reel may bear. The reel is provided with a central recess having at least one rest projecting radially inward. The coupling includes a resilient locking device carried by the drive wheel and a controller slidably mounted within the drive wheel for actuating the resilient locking device between a retracted, rest position in which the reel can freely slide onto the drive wheel, and a working position in which the resilient locking device is pressed against the rest so that the reel can be axially locked against the axial abutment.
    Type: Grant
    Filed: May 22, 1991
    Date of Patent: February 2, 1993
    Assignee: Schlumberger Industries
    Inventors: Pierre Abeille, Didier Bredif