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| Method and device for left atrial appendage occlusion |
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| Method and apparatus for patching a tissue opening |
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| Filter apparatus for ostium of left atrial appendage |
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| Patches and collars for medical applications and methods of use |
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Dunnage conversion machine with translating grippers, and method and product
| Details |
Inventors: Kung, Kurt; Schwarz, Dieter; Coppus, Dan;
Assignee: Ranpak Corp. (Concord Township, OH)
Primary Examiner: Gerrity; Stephen F.
Assistant Examiner: Durand; Paul
Attorney, Agent or Firm: Renner, Otto, Boisselle & Sklar, LLP
A dunnage conversion machine for converting stock material into a dunnage product includes a forming assembly and a pulling assembly. The pulling assembly includes at least two grippers movable together through a transfer region in opposition to one another and cooperative to grip therebetween the dunnage strip for advancing the dunnage strip through the transfer region, and at least one of the grippers including an aperture operative to gather and laterally capture therein the dunnage strip as the grippers move through the transfer region. Also disclosed is a severing assembly including a movable blade and a reciprocating actuator connected to the blade by a motion transmitting assembly that moves the blade through a full severing cycle upon a stroke of the actuator in either direction. Also disclosed is a void fill dunnage product including a three dimensional crumpled strip of dunnage round in cross-section and including at least one ply of sheet material having, in cross-section, a crumpled multi-lobed undulating body, with the lobes thereof extending longitudinally and being dispersed in an irregular pattern. |
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DETAILED DESCRIPTION The present invention provides a dunnage conversion machine which is particularly suited to production of a void fill dunnage product.
According to one general aspect of the invention, opposing grippers including apertures move through a transfer region and laterally capture a crumpled strip of dunnage for advancing the strip of dunnage through the conversion machine.
According to another general aspect of the invention, a severing member (such as a blade) is connected to a reciprocating actuator by a motion transmitting assembly that moves the severing member through a full severing cycle upon a single stroke of the actuator in either direction.
According to a further general aspect of the invention, a void fill dunnage product includes a three dimensional crumpled strip of dunnage of generally cylindrical shape including at least one ply of sheet material forming multiple substantially longitudinally extending crumpled lobes dispersed in an irregular pattern in cross-section.
The void fill product preferably has the highest possible volume and stability, while using the least possible amount of raw material.
This is achieved in accordance with the present invention by producing the noted generally cylindrical product whose stability can yet be further increased by making the same generally curved and/or by permanently deforming the cross-sections of selected spaced portions of the product.
More particularly and according to an aspect of the invention, there is provided a dunnage conversion machine and a method for converting sheet material into a dunnage product, the machine including a forming assembly for shaping the sheet material into a continuous strip of dunnage having a three-dimensional shape, and a pulling assembly positioned downstream from the forming assembly for advancing the sheet material through the forming assembly.
The pulling assembly includes at least two grippers movable together through a transfer region in transverse opposition to one another and cooperative to grip therebetween the dunnage strip for advancing the dunnage strip through the transfer region
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