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US 4,784,348 AGranted
Dispenser and method for applying web-like material to packaging units
OwnerAlex F. McDonaldinventor
Life of this patent
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OwnerAlex F. McDonaldinventor
Estimating the term…
A method for manually applying web-like material, such as plastic stretch film in roll form, to packaging units, by winding the web material about the packaging units and controlling the tension and speed of unrolling of the roll of web material while applying the latter to the packaging units, and a simplified tool for accomplishing the method. The tool includes a head and a spindle projecting outwardly therefrom, with the head being adapted to mount a roll of the web material in non-movable relationship with respect to the head. An encircling wrap envelope of the web material is wound about the spindle in relatively rotatable relation therewith, and the tension and speed of unrolling of the web material from the roll while applying the web material to a packaging unit is accomplished by manually squeezing the wrap envelope of material on the spindle, to selectively cause a braking action between the spindle and the envelope.
A method for manually applying flexible web material, such as plastic film or the like, to packaging units comprising, providing a roll of said flexible material having an open core, inserting into the core in frictional engagement therewith a spindle which then projects out one end of said core, relatively loosely wrapping a selected amount of said flexible material about said projecting portion of said spindle to form an encircling envelope of flexible material which is rotatable relative to said projecting portion of said spindle, and controlling the tension and speed of unrolling of said flexible web material from said roll while applying said flexible material to a packaging unit by manually squeezing said envelope of flexible material on said spindle to selectively cause a braking action between said spindle and said envelope, and including removing said envelope from said spindle by slipping it off the distal end thereof, and then replacing said envelope by wrapping a selected amount of new roll flexible material about said spindle to form a new encircling envelope of flexible material as a replacement for the original envelope of flexible material.
A tool for manually applying a web of elongated flexible stock material to units for packaging or banding the same comprising, a head adapted to be forced frictionally into an open core of a roll of the flexible material with the core being non-rotatable with respect to the roll of flexible material, and a spindle fixedly projecting from said head and adapted to extend outwardly of the roll, said spindle having an enlarged end thereon for retaining on said spindle an associated wrap envelope of the flexible material, encircling said spindle in relatively rotatable relation, said wrap envelope of material being adapted to control the tension and the speed of unrolling of the flexible material from the roll while applying the flexible material to a unit for packaging or the like by manaully squeezing the wrap envelope of flexible material on said spindle to selectively cause a braking action between said spindle and said wrap envelope.
Dependencies are inferred from the claim text.