US3611883A — Apparatus and method for making baglike container…

Claim 1

Independent Claim 297 words

Apparatus for making a container having front and back panels joined by side panels that fold to bring the front and back panels together when the container is in a flat condition, the container having a baglike closed bottom portion and a folding boxlike open upper end portion that folds in to close the container, including in combination, means for supplying a web of material from which the container panels are made, a bagmaking machine that Folds the web along longitudinal fold lines to make a tube having front, back and side panels and a longitudinal seam, means seam, for cutting the tube into individual container blanks and for folding the lower end of each blank to form a baglike bottom, two patch applicators through which the web passes on its way to the bagmaking machine, holders for reels of paperboard of substantially the same width as the front and back panels of the container, means for feeding the paperboard from each reel to the web at a different patch applicator station, cutting means along the patch of the paperboard and near the patch applicator stations for severing the paperboard strips into successive panels of a height approximately equal to the width of the side panels of the container, pressure means at said stations for applying parallel rows of successive severed panels to the web at predetermined spaced locations corresponding to top areas of the front and back panels of the finished containers, one of the applicators applying its patches on one side of the centerline of the web and the other of said applicators applying its patches on the other side of the centerline of the web with the patches spaced from one another by a distance substantially equal to the width of the side panels.

Claim 2

Dependent Claim 297 words

Apparatus for making a container having front and back panels joined by side panels that fold to bring the front and back panels together when the container is in a flat condition, the container having a baglike closed bottom portion and a folding boxlike open upper end portion that folds in to close the container, including in combination, means for supplying a web of material from which the container panels are made, a bagmaking machine that Folds the web along longitudinal fold lines to make a tube having front, back and side panels and a longitudinal seam, means seam, for cutting the tube into individual container blanks and for folding the lower end of each blank to form a baglike bottom, two patch applicators through which the web passes on its way to the bagmaking machine, holders for reels of paperboard of substantially the same width as the front and back panels of the container, means for feeding the paperboard from each reel to the web at a different patch applicator station, cutting means along the patch of the paperboard and near the patch applicator stations for severing the paperboard strips into successive panels of a height approximately equal to the width of the side panels of the container, pressure means at said stations for applying parallel rows of successive severed panels to the web at predetermined spaced locations corresponding to top areas of the front and back panels of the finished containers, one of the applicators applying its patches on one side of the centerline of the web and the other of said applicators applying its patches on the other side of the centerline of the web with the patches spaced from one another by a distance substantially equal to the width of the side panels.

Claim 3

Dependent Claim 35 words

The apparatus described in claim 1 characterized by adhesive applicators ahead of the patch applicator stations in position to apply adhesive over areas for securing the patches to the web at said predetermined spaced locations.

Claim 4

Dependent Claim 132 words

The apparatus described in claim 2 characterized by the adhesive applicator being along the path of the web and including means for applying adhesive to the web over an area that corresponds to most, but not all, of the area to be occupied by the patch, and a second adhesive applicator along the path of the web and including means for applying adhesive to at least part of the remaining area to be occupied by the path and on which no adhesive was applied by the first adhesive applicator, the second adhesive applicator including means for holding an adhesive that sets faster than the adhesive applied by the first adhesive applicator whereby the adhesive from the second applicator holds a patch in place while the adhesive from the first adhesive applicator sets.

Claim 5

Dependent Claim 147 words

The apparatus described in claim 1 characterized by cutters along the path of travel of the paperboard of one of the patch applicators for cutting the board along hinge lines that leave triangular areas at opposite ends of the path for folding forward to control the bending in of the side panels of the container at the upper end thereof when the upper ends of the panels are folded in one over the other to close the upper end of the container, said cutters being disposed to cut at approximately 45* to the direction of extent of the board as it comes from its reel. 5. The apparatus described in claim 4 characterized by the patch applicator that has the cutters being on the side of the centerline of the web over which the other part is folded to make the tube that provides the container blanks.

Claim 6

Dependent Claim 48 words

The apparatus described in claim 4 characterized by the patch applicators having means for imparting relative transverse adjustment to them with respect to one another to change the transverse spacing of the patches for operation with webs of different width making containers have side panels of different widths.

Claim 7

Dependent Claim 90 words

The apparatus described in claim 6 characterized by each of the patch applicators including a frame that carries all of the elements of the patch applicator, a base on which each of the frames has movement transverse of the web and relative to the path of movement of the web, the means for imparting relative transverse adjustment including an actuator and means for transmitting motion with a mechanical advantage that gains force to shift the position of the frame of at least one of the patch applicators on its base.

Claim 8

Dependent Claim 87 words

The apparatus described in claim 6 characterized by the patch applicators being at staggered locations along the path of movement of the web, one patch applicator being ahead of the other by a distance evenly divisible by the length of a container blank, and at least one of said patch applicators being adjustable into a position that overlaps, transversely of the web, the extent of the other patch applicators transversely of the web for bringing the patch applicators closer together when operating on webs of minimum width

Claim 9

Dependent Claim 175 words

The apparatus described in claim 8 characterized by two adhesive applicators along the path of travel of the web through each of the patch applicators, the first of the adhesive applicators in each patch applicator including a roller that applies adhesive to the area of the web to which the patch is to be applied in that patch applicator, the roller having a width slightly less than the width of the patch, and the second adhesive applicator for each patch applicator having means for applying adhesive to the area of the web to which the patch is to be applied but beyond the area to which adhesive is applied by the roller of the first adhesive applicator, the second adhesive applicator being closer to the patch applicator station than is the first adhesive applicator and including means for applying an adhesive that sets faster than the adhesive applied by the first adhesive applicator for holding a patch in place during the travel of the web while the adhesive from the first applicator is becoming set.

Claim 10

Dependent Claim 65 words

The apparatus described in claim 1 characterized by driving mechanism for the bagmaking machine and the patch applicators coordinated to operate the means for cutting the tube in the bagmaking machine to sever the container blanks at locations which leave the upper ends of the front and back panels spaced slightly beyond the upper edges of the patches whereby the containers have soft top edges.

Claim 11

Dependent Claim 82 words

The apparatus described in claim 1 characterized by means for slitting the patches of one row at a center region of the patch with the slit extending part way from the center region toward the ends of the patch that are adjacent to the side panels of the bag, the means for slitting the patch being located along the path of travel of the web and beyond the patch applicator station whereby the slit extends through both the patch and the web.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1974-10-11	1975-04-12	1975-10-12	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1978-10-11	1979-04-12	1979-10-12	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1982-10-11	1983-04-12	1983-10-12	$7700.00	Window Closed / Lapsed

Apparatus and method for making baglike containers with boxlike top

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