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US 5,588,575 AGranted
Needle for use in the rodless dispensing of plastic fasteners
AssigneeAvery Dennison Corporation
InventorPaul A. Davignon
Life of this patent
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AssigneeAvery Dennison Corporation
InventorPaul A. Davignon
Estimating the term…
Needle for use in the rodless dispensing of plastic fasteners of the type comprises a flexible filament and a cross-bar disposed at one end of the flexible filament. In one embodiment, the needle comprises a solid elongated member terminating at its front end in a tip adapted to penetrate a desired article of commerce and a chamber adapted to receive a cross-bar of a plastic fastener. The chamber includes a front end, a rear end, an open top and an open bottom. The open top, which is spaced rearwardly a distance from the tip, is appropriately sized and shaped to permit the insertion and removal of a cross-bar into and from the chamber. The front end is downwardly angled towards the tip to releasably engage the top surface of the front end of the cross-bar, and the rear end has a pair of walls intersecting in a V-shape to releasably engage both the top surface and the bottom surface of the rear end of the cross-bar in such a way as to prevent the cross-bar from being pulled out of the chamber through the open top when low tension is applied to the flexible filament (i.e., prior to the complete insertion of the cross-bar through the article of commerce), but yet, so as to cause the cross-bar to be pulled out of the chamber through the open top when high tension is applied to the flexible filament (i.e., following the complete insertion of the cross-bar through the article of commerce).
A needle for use in dispensing a fastener of the type having a flexible filament and a cross-bar, the cross-bar being disposed at one end of the flexible filament, said needle comprising an elongated member, said elongated member terminating at its front end in a closed-ended tip adapted to penetrate a desired article of commerce, said elongated member also having a chamber adapted to receive a cross-bar of a fastener, said chamber having an opening spaced rearwardly h distance from said closed-ended tip, said chamber being appropriately sized and shaped so that, when the cross-bar is placed within said chamber through said opening and inserted through an article of commerce using said elongated member, the cross-bar is retained within said chamber during insertion of the cross-bar into the article of commerce but is discharged from said chamber through said opening when a predetermined tensile force is applied to said fastener after insertion of the cross-bar and chamber through the article of commerce.
A needle for use in dispensing a fastener of the type having a flexible filament and a cross-bar, the cross-bar being disposed at one end of the flexible filament and having a front, a rear and top and bottom surfaces, said needle comprising an elongated member, said elongated member terminating at its front end in a tip adapted to penetrate a desired article of commerce, said elongated member also having a chamber adapted to receive a cross-bar of a fastener, said chamber including a front end, a rear end, a top and a bottom, said top including an opening spaced rearwardly a distance from said tip, said front end being shaped to releasably engage the top surface of the front of the cross-bar when the cross-bar is disposed within said chamber, said rear end being shaped to releasably engage the top and bottom surfaces of the rear of the cross-bar when the cross-bar is disposed within said chamber, said rear end being a vertical wall provided with a notch, said notch being matingly engageable with the rear of the cross-bar, said chamber being appropriately sized and shaped so that, when the cross-bar is placed Within said chamber through said opening and inserted through an article of commerce using said elongated member, the cross-bar is retained within said chamber during insertion of the cross-bar through the article of commerce but is discharged from said chamber through said opening after insertion of the cross-bar through the article of commerce.
A needle for use in dispensing a fastener of the type having a flexible filament and a cross-bar, the cross-bar being disposed at one end of the flexible filament and having a front, a rear and top and bottom surfaces, said needle comprising an elongated member, said elongated member terminating at its front end in a tip adapted to penetrate a desired article of commerce, said elongated member also having a chamber adapted to receive a cross-bar of a fastener, said chamber including a front end, a rear end, a top and a bottom, said top including an opening spaced rearwardly a distance from said tip, said bottom of said chamber being open, said front end being shaped to releasably engage the top surface of the front of the cross-bar when the cross-bar is disposed within said chamber, said rear end being shaped to releasably engage the top and bottom surfaces of the rear of the cross-bar when the cross-bar is disposed within said chamber, said chamber being appropriately sized and shaped so that, when the cross-bar is placed within said chamber through said opening and inserted through an article of commerce using said elongated member, the cross-bar is retained within said chamber during insertion of the cross-bar through the article of commerce but is discharged from said chamber through said opening after insertion of the cross-bar through the article of commerce.
A needle for use in dispensing a fastener of the type having a flexible filament and a cross-bar, the cross-bar being disposed at one end of the flexible filament, said needle comprising an elongated member, said elongated member terminating at its front end in a closed-ended tip adapted to penetrate a desired article of commerce, said elongated member also having a chamber adapted to receive a cross-bar of a fastener, said chamber having an opening spaced rearwardly a distance from said closed-ended tip, said chamber being appropriately sized and shaped to prevent the cross-bar placed inside said chamber through said opening from being pulled out through said opening during insertion of the cross-bar into an article of commerce using said elongated member, and yet, to cause the cross-bar to be discharged from said chamber through said opening when a predetermined tensile force is applied to said fastener after insertion of the cross-bar and chamber through the article of commerce.
Dependencies are inferred from the claim text.