Patents by Inventor Roland Sinteff

Roland Sinteff 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: 5927137
    Abstract: A tool for shaping, by deep drawing, a truncatedly ending round orifice in a metallic strip material, viz. for manufacturing a faceplate for a locking fitting or the like, includes both a punch and a die. The punch includes a cylindrical portion forming the extension of a truncated portion, whereas the die includes a bore with a cross-section adjusted to that of the cylindrical portion of the punch, this bore having, at the level of its wall, at least a groove ending at the upper face of this die, in front of the strip material to be shaped, into this or these grooves escaping the material during deep drawing of the truncated end.
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: July 27, 1999
    Assignee: Ferco International Ferrures et Serrures de Batiment
    Inventor: Roland Sinteff