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US 4,543,766 AGranted
Packaging system
AssigneeHobart Corporation
InventorEdwin E. Boshinski
Life of this patent
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AssigneeHobart Corporation
InventorEdwin E. Boshinski
Estimating the term…
A weighing scale and a label printer/applier are cooperatively combined with a wrapping machine to form a packaging machine into which a trayed commodity can be inserted and a wrapped and priced package removed. The weight of a trayed commodity is preferably determined as it is transported into the packaging machine. The tray size, known commodity and weight of the trayed commodity or package are utilized to determine the length and width of a sheet of film to be used to wrap the package. The package weight is passed to a label printer which calculates the price for the commodity being packaged, prints the label and passes it to a labeling head incorporated into a portion of the wrapping machine. The package weight is determined by subtracting a tare weight based on sensed package dimensions from the gross weight of the package to arrive at an accurate net pricing weight.
In a packaging machine comprising a stretch wrap station adjacent a feed-in tray and having means for prestretching film within a horizontal plane across an elevator which is movable along a vertical elevation path intersecting with said horizontal plane wherein packages which are to be wrapped and priced are transported from said feed-in tray to said elevator which in turn elevates the packages into a prestretched section of stretch film to thereby wrap and further stretch said film about said package, the improvement comprising:
In a packaging system comprising a film wrapping machine for wrapping known commodities supported upon trays of varying sizes in variously sized sheets of film, means for weighing trayed commodities and computation means for calculating the price to be charged for such trayed commodities based on the weights of the trayed commodities, the price per unit weight of the commodity and the tare weight, the improvement comprising:
In apparatus for calculating the price of a trayed commodity based on the price per unit weight of the commodity, the weight of the trayed commodity and the tare weight, said apparatus comprising means for weighing the trayed commodity and means for calculating the price of the trayed commodity, the improvement comprising:
Apparatus for selecting the size of a sheet of wrapping material to be used for wrapping a known commodity supported upon a generally rectangular tray, said commodity substantially covering the entire surface of said tray, said apparatus comprising:
Dependencies are inferred from the claim text.