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US 4,288,279 AGranted
Apparatus for producing bags of plastics material
AssigneeMetal Closures Venue Packaging Limited
InventorsPeter D. Blore, David S. Wheatley
Life of this patent
Estimating the term…
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AssigneeMetal Closures Venue Packaging Limited
InventorsPeter D. Blore, David S. Wheatley
Estimating the term…
Apparatus for producing a bag of plastics material having an opening closable by a flap which is provided with a band of adhesive for securing the flap to the bag after closing of the opening, the band of adhesive being covered by a releasable strip of plastics material. The apparatus includes a reel holder for rotatably supporting a reel of the releasable strip, a first guide for feeding the strip in succession passed an adhesive applicator for applying a band of adhesive to one side of the strip, a second guide for guiding a continuous length of folded plastics material for forming the bag to heat a severing mechanism which operates to sever separate bags from the continuous length of material and also fuse together the edges of each separated bag, a pressure mechanism situated to apply the strip to the continuous length of material so that the strip is secured by the band of adhesive to the continuous length of material before it is fed to the severing mechanism, and a reel holder including a table rotatable about a vertical axis and arranged to support the reel horizontally. A brake mechanism is provided for restraining the rotation of the table so that the strip is tensioned as it is pulled off the reel.
Apparatus for producing bags of plastics material having an opening closable by a flap and a band of adhesive for securing the flap after closing of the opening, the band of adhesive being covered by a releasable strip of plastics material, the apparatus including a reel holder for rotatably supporting a reel of the releasable strip, guide means for feeding the strip in succession passed on adhesive applicator for applying a band of adhesive to one side of the strip, further guide means for guiding a continuous length of folded plastics material for forming the bags to heat severing means which operate to sever separate bags from said continuous length and also fuse together the edges of each separated bags, and pressure means arranged to apply the strip to said continuous length so that the strip is secured by the band of adhesive to said continuous length before it is fed to the severing means, a reel holder including a table rotatable about a vertical axis and arranged to support the reel horizontally, brake means being provided for restraining rotation of the table so as to tension the strip as it is pulled off the reel.
Dependencies are inferred from the claim text.