Patents Assigned to Sigma Tool & Machine
  • Patent number: 4472956
    Abstract: Feeding apparatus for elongated objects having a rotary feed member, having a drive for rotating the same at a high speed, spaced apart parallel grooves formed in the outer circumference of the rotary member spaced apart radially from one another, to receive a single elongated object, angled shoulders formed on the outer periphery of the rotary member, located adjacent respective grooves, a recess formed in the rotary member intermediate its upper and lower ends, an ejection device located in the recess for engaging and ejecting objects at a predetermined rotational position and a generally semi-annular retaining guide, around a portion of the rotary member, for retaining objects in the grooves.
    Type: Grant
    Filed: June 28, 1982
    Date of Patent: September 25, 1984
    Assignee: Sigma Tool & Machine Limited
    Inventor: Walter H. Leistner
  • Patent number: 4433782
    Abstract: A magazine for use with a fastener driving tool employing a strip of fasteners formed into a coil, and having a fixed portion to be fastened to such a tool, wall means forming a portion of said fixed portion for engaging such a coil of fasteners, a mounting member on the fixed portion along an axis centrally of the coil of fasteners, a movable attachment member incorporated in the mounting member, and movable between locking and releasing positions, a movable magazine portion defining wall means adapted to engage the coil of fasteners, exit means on at least one of the fixed and movable magazine portions, for exit of the fasteners, a slidable guide member formed on the movable portion, interengageable with the mounting member, and locking abutment means located inwardly of the guide member, for interengaging with the locking means on said fixed magazine portion.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: February 28, 1984
    Assignee: Sigma Tool & Machine Limited
    Inventors: Siegfried E. O. Figge, Herbert E. Leistner