Patents Assigned to Pearl Technologies Incorporated
  • Patent number: 7779738
    Abstract: A punch arrangement for punching holes in a moving web of a plastic film has a pivoted yoke mounted on a fixed bracket above the plastic film. An air cylinder or other actuator is mounted on the yoke and has a cutting head mounted on the rod of the cylinder. The cutting head is in registered alignment with an aperture on a support plate below the film. The film engages and swings the cutting head out in the film transport direction until the head rises out of contact with the film. Then a spring urges the yoke, actuator and cutting head back to their home position. A punch cycle can be carried out repeatedly on the film while the film is in constant motion.
    Type: Grant
    Filed: January 2, 2008
    Date of Patent: August 24, 2010
    Assignee: Pearl Technologies Incorporated
    Inventors: Earl T. Pottorff, Robert J. Tewksbury, Mark J. Clark
  • Patent number: 7624980
    Abstract: A rotary vacuum wicketting arrangement has a rotary hub body positioned on a shaft or spindle and supporting a number of pickup arms, and a non-rotating vacuum spinning head that provides vacuum to the rotating hub body and pickup arms over a portion of their arcuate travel. The rotary hub body is provided with a lock ring formed or a pair of half rings with hand levers so that the position of the hub body on the shaft can be adjusted toollessly. The pickup arms are held in place in their sockets by ball and spring detents, so that they can be pulled out for cleaning and reinserted without tools. A friction fitted plug closes off the end of each arm.
    Type: Grant
    Filed: July 9, 2007
    Date of Patent: December 1, 2009
    Assignee: Pearl Technologies Incorporated
    Inventors: Robert J. Tewksbury, Mark J. Clark