Blank-splitting Patents (Class 76/11)
  • Patent number: 5463917
    Abstract: In the case of a process for producing, in particular, two-part surgical instruments, a blank is separated into two parts by means of cutting equipment. Contours are formed in the blank simultaneously during the separation by means of the cutting equipment.
    Type: Grant
    Filed: September 30, 1993
    Date of Patent: November 7, 1995
    Inventor: Lutz Kothe
  • Patent number: 4453431
    Abstract: Metallic wire card clothing is provided having a sharpened leading edge on each of the longitudinally aligned teeth formed in a metallic strip by an apparatus which includes a punch. During punching, the relative direction of travel of the punch is illustrated as inclined at an acute angle in relation to the moving strip and a die cooperating therewith. The method contemplates thus inclining the strip and while the strip is so inclined, punching the teeth as the strip is continuously fed past the die. The strip may be inclined in respect to the direction of travel of the punch either transversely or longitudinally, preferably, both.
    Type: Grant
    Filed: July 9, 1980
    Date of Patent: June 12, 1984
    Inventor: John D. Hollingsworth