Resources Contact Us Home
Pneumatic scrap reduction system for rotary die cutter

Image Number 6 for United States Patent #4781088.

A rotary die cutter system minimizes the amount of scrap between successive blanks cut from web material by holding the web against backward movement at a position spaced upstream from the nip defined by the die and anvil cylinders, retracting the cut leading end of the web through a predetermined distance by means of a fluid pressure cylinder in response to release of the web by the cut-off knife at the trailing edge of the die on the die cylinder such that on the next cycle, the leading edge of the die will engage the web at a position spaced so close to the retracted leading end of the web that contiguous portions of a single blank can be cut from the web during successive revolutions of the die cylinder.

  Recently Added Patents
Multi-band dipole antenna
Multicyclic compounds and methods of use thereof
Multi-wired antenna for mobile apparatus
Pear-shaped convertible reading glasses
Liposomal nanoparticles and other formulations of fenretinide for use in therapy and drug delivery
Electrode material and use thereof for production of electrochemical cells
Method and system for electronic assistance in dispensing pharmaceuticals
  Randomly Featured Patents
Denaturant stable and/or protease resistant, chaperone-like oligomeric proteins, polynucleotides encoding same, their uses and methods of increasing a specific activity thereof
Safety device for operator protection in low-height shaft bottom end elevators and elevator equipped therewith
Asymmetric serrated nozzle for exhaust noise reduction
Ethylene oxide production
Expandable dish drainer
Process for removing tar from synthesis gas
System and method for establishing secure communication
Method for preparing silica gel particles
Field effect transistor
Multiple level product divider