Loop Extending Between Opposite Walls Patents (Class 383/8)
  • Patent number: 6068584
    Abstract: Method of making gusseted plastic bags in either rolls or stack packs, each bag having at least one plastic promotional strip extending along a side edge of the bag and secured adjacent to top and bottom edges. The promotional strip may be disposed either between the folded bag edges forming the gusset or outside of the gusset, and may or may not be perforated.
    Type: Grant
    Filed: March 12, 1999
    Date of Patent: May 30, 2000
    Assignee: The Avantage Group, Inc.
    Inventors: Mark E. Daniels, Joseph L. Wicherski
  • Patent number: 5979655
    Abstract: A pack of registering plastic T-shirt bags in which the walls of each bag are provided with registering central tabs projecting into the bag mouth, the tabs each having a rack retainer mounting orifice comprising a lower transverse cut portion extending between points spaced inwardly from the side edges of the tab with one end of the cut portion curving back and upwardly to extend toward, but terminating before reaching, the upper edge of the tab; and the other end of the cut portion also curving back upwardly and terminating in a segment of the cut extending back parallel to the lower transverse portion for a distance less than half the extent of said latter portion; thereby, the tabs of the bags may be mounted on a rack retainer by passing the retainer through the lower transverse cut portion of the mounting orifice.
    Type: Grant
    Filed: June 3, 1998
    Date of Patent: November 9, 1999
    Assignee: Inteplast Group, Ltd.
    Inventors: Ben Tseng, Ron C. Yeh, Ernest Acosta, Yook-Meng Chew
  • Patent number: 5967662
    Abstract: A stack of plastic T-shirt bags and method of making the same wherein the bags of the stack have been subjected to two corona treatments to increase the adhesion between the back wall of each bag and the front wall of the next ensuing bag with a row of pressure points being provided at the base of the central mounting tab in order to enable each bag as it is pulled open on the rack arms to initiate opening of the next ensuing bag. The mounting tab is cut to provide not only a central mounting slit, but also with a wave-like cut below the mounting slit to enable the mounting tab to be torn for removal from the central mounting element without the tear extending down into the bag walls.
    Type: Grant
    Filed: March 30, 1998
    Date of Patent: October 19, 1999
    Assignee: Inteplast Group, Ltd.
    Inventor: Yook-Meng Chew
  • Patent number: 5941393
    Abstract: A pack of easy opening handleless or T-shirt type plastic bags for packaging grocery produce or the like and for being suspended from a rack for being serially opened and removed from the rack. Each type of bag includes integrally formed front and rear walls and gusseted side walls which extend inwardly towards each other and which terminate proximate each other. The walls have top portions defining an open mouth. Each T-shirt type bag includes laterally-spaced handles extending upwardly from the mouth portion on each side of the bag. The front and rear walls and gusseted side walls of each bag are folded onto each other along a longitudinal axis of the bag to define eight superimposed layers. A seal of the star seal type secures the bottoms of the eight layers together to close each bag bottom. Superimposed detachable tabs extend upwardly from the eight wall layers at the top of each bag. Each tab includes an aperture for mounting on a tab-retaining device of a rack.
    Type: Grant
    Filed: July 23, 1998
    Date of Patent: August 24, 1999
    Assignee: Sonoco Development, Inc.
    Inventor: Harry B. Wilfong, Jr.
  • Patent number: 5935367
    Abstract: An apparatus and method for forming specially-configured handles in a plurality of interconnected plastic bags traveling in a longitudinal direction. The plastic bags are interconnected along transverse lines of weakness spaced at bag-length distances apart. The apparatus and method comprise using a rotary anvil and a rotary cutting die. The rotary anvil has a first axis of rotation. The rotary cutting die is disposed adjacent to the rotary anvil and has a second axis of rotation substantially parallel to the first axis of rotation. The rotary cutting die includes a rotatable cylindrical shaft, a blade shell mounted on the shaft, and a generally W-shaped blade formed on the blade shell. The blade has a base portion and a pair of substantially linear opposing legs, and the base portion has an inverted, V-shaped configuration. The opposing legs extend upwardly relative to the base portion and outwardly relative to each other.
    Type: Grant
    Filed: December 11, 1996
    Date of Patent: August 10, 1999
    Assignee: Tenneco Packaging Inc.
    Inventor: Robert E. Hollenbeck
  • Patent number: 5924796
    Abstract: A process of manufacturing a bulk bag begins with a length of tubular woven polypropylene material which is cut along first transversely extending lines 64 to form the upper edges of lift sleeve portions 76, cut along longitudinally extending lines 66 to form the side edges of the lift sleeve portions 76, and cut along substantially transversely extending lines 68 situated at the midpoint of the lines 66 to form opposed top wall halves 72 and opposed bottom wall halves 74. The top wall halves and the bottom wall halves are then sewn together along sew lines 82 and 84, respectively. Sidewalls 70' are joined to the bottom wall halves 74 along sew lines 86, and the top wall halves 72 are joined to the sidewalls 70' along sew lines 88. The lift sleeve portions 76 may be configured to provide lift sleeve, lift rope, or single point lift construction. The top and bottom walls may be provided with a fill chute and discharge chute, respectively.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: July 20, 1999
    Assignee: Super Sack Manufacturing Corp.
    Inventor: Norwin C. Derby
  • Patent number: 5918984
    Abstract: A plurality of collapsible bags are integrally formed in a tubular blank of a flexible material with a perforated portion disposed between adjacent bags to facilitate separating them. When formed, adjacent bags are connected in end-to-end relationship and lie generally flat such that the elongate blank may be wrapped around itself forming a roll of the bags or the bags may be pleated or accordion folded flat within a container whereby they may be individually removed from the container for use. Handles are preferably integrally formed with each bag extending from adjacent the top wall of the bag. A spout is preferably also integrally formed with the bag to facilitate filling and emptying of the bag. The bags are particularly suited to contain liquids or frozen liquids and are preferably made of a food-grade plastic film material suitable to contain various foods or beverage products. The bags may each be received in a separate container to support a filled bag.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: July 6, 1999
    Assignee: Custom Packaging Systems, Inc.
    Inventors: Lee LaFleur, James E. Rozmarek
  • Patent number: 5908244
    Abstract: A flaccid plastic film bag has opposed handle portions. Each handle has side elements upstanding from the bag body on either side of a hand-receiving aperture. Slits are provided in the edges of the side elements. The slits originate inward of the edge and extend downward and outward to cut through the edge. When one handle is passed through the aperture of the other handle to close the mouth of the bag, the slitted edges prevent the handles from slipping apart and spilling the contents of a loaded bag during transport.
    Type: Grant
    Filed: March 5, 1998
    Date of Patent: June 1, 1999
    Inventor: Louis G. Galambos
  • Patent number: 5890810
    Abstract: An extruded plastics tube is flattened and the lateral side portions (4) are folded to form inwardly extending gussets (2). Each gusseted side portion is then folded about a longitudinal fold line (5) onto the medial portion (3) between the side portions. The resultant layers are heat sealed to form the bottom of the bag.
    Type: Grant
    Filed: October 17, 1997
    Date of Patent: April 6, 1999
    Assignee: Poly-Lina Ltd.
    Inventor: Garry Barlow
  • Patent number: 5882118
    Abstract: Gusseted plastic bags and methods of making the same in either rolls or stack packs, each bag having at least one plastic promotional strip extending along a side edge of the bag and secured adjacent to top and bottom edges. The promotional strip may be disposed either between the folded bag edges forming the gusset or outside of the gusset, and may or may not be perforated.
    Type: Grant
    Filed: April 24, 1997
    Date of Patent: March 16, 1999
    Inventors: Mark E. Daniels, Joseph L. Wicherski
  • Patent number: 5799793
    Abstract: A system for suspending a pack of thermoplastic bags, loading bags, removing loaded bags and for automatically opening the next bag preparatory to loading it by having a pack of handled bags suspended from laterally spaced elongated rods of a rack. The bags have been corona discharge treated to such an extent that the application of pressure will cause adjacently facing regions to releasably adhere together until a moderate force separates them. During removal of a bag front the bag pack at least a portion of the front wall of the next bag will follow the bag being removed for a short distance before separation thereby opening said next bag rendering it ready for loading. An improved means for applying the requisite pressure is disclosed herein.
    Type: Grant
    Filed: September 26, 1997
    Date of Patent: September 1, 1998
    Assignee: Tenneco Packaging Inc.
    Inventors: Lawrence J. Glod, Sr., Richard E. Leone
  • Patent number: 5716135
    Abstract: A shopping bag including a first panel, a second panel and pair of opposed side panels which together form a shopping item container area adapted to hold at least one shopping item. The shopping item container area includes an opening through which the shopping item is placed into the shopping item container area. The shopping bag further includes at least one restraining tab extending from the first panel, the tab including a free end portion having disposed thereon an adhesive. The free end portion can be secured to the second panel in order to at least partially close the opening so as to restrain the shopping items from escaping from the shopping item container area. An associated method is also disclosed.
    Type: Grant
    Filed: January 26, 1996
    Date of Patent: February 10, 1998
    Inventor: Wilson S. Campbell
  • Patent number: 5576037
    Abstract: A shrink bag having an integral carrying handle is provided that includes an extended skin portion of the bag of a heat shrinkable thermoplastic material and having a carrying hole in the skirt portion with an essentially continuous heat seal around its margin, the carrying hole having a configuration which helps to distribute stress and substantially eliminates tear propagation. The bag is particularly adapted for packaging whole turkeys and the like and, to this end, the integral carrying handle is preferably located at the breast containing end of the bag.
    Type: Grant
    Filed: February 3, 1994
    Date of Patent: November 19, 1996
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Donald B. Moore, Jr., Jeffrey D. Gebauer, John P. Carson
  • Patent number: 5568979
    Abstract: A grocery bag or the like having a closure member which securely closes the mouth of the bag so as to prevent items contained therein from falling out when the bag is tipped over. Closure is accomplished by a thin flexible strap attached to the front wall of the bag just below the bag mouth defining an opening between the strap and bag wall. The user may close the bag by inserting the hand through the opening defined by the strap and the bag front wall, grasping the bag handles and pulling the handles through the opening.
    Type: Grant
    Filed: May 16, 1994
    Date of Patent: October 29, 1996
    Assignee: Tenneco Plastics Company
    Inventors: Larry D. Fifer, Robert E. Hollenbeck, Mark F. Kozlowski, Richard E. Leone, Clifford H. Patridge
  • Patent number: 5564223
    Abstract: A quick-peelable fruit protective wrap comprises gadgets formed by folding both lateral sides of the wrap outside in, a nearly U-shaped notch portion forming a pair of strips with both sides of the opening portion in the top connected together to span over a branch, and a base portion with the gadgets also adhered in one body, and has pores on the whole surface, the pores are formed in ovals with the long diameters directed along the opening and base portions and the base portion of the wrap is of reinforced structure, thereby permitting a fruit to be taken out at a stretch from the wrap and simultaneously the wrap to be removed from the branch bearing the fruit.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: October 15, 1996
    Assignee: Nippon Film Co., Ltd.
    Inventor: Kazuhiko Takita
  • Patent number: 5524949
    Abstract: A carrier is disclosed for use by a person for carrying a load which is to be carried in an essentially horizontal condition. The carrier is shaped so that, in use, it provides a base for supporting the base of the load being carried, and includes a handle or loop which is located, in use, essentially centrally above the load. The carrier is in the form of a bag, which is sufficiently large at its lower end to accommodate the load to be carried in its essentially horizontal condition. The bag is provided with holes or cut-out portions dimensioned and positioned so as to receive the corners or other projecting portions of the load for stabilizing the load in its essentially horizontal condition. A method for making such a carrier, from an existing carrier bag, is also provided.
    Type: Grant
    Filed: January 17, 1995
    Date of Patent: June 11, 1996
    Inventor: Sean S. A. Mooney
  • Patent number: 5464098
    Abstract: A method for manufacturing automatic consecutively opened thermoplastic T-shirt bags for dispensing from a conventional supporting rack. The method involves providing a continuous flattened tube of thermoplastic film and applying adhesive solution using a printing press to form adhesion regions on the outside of the tube. The adhesive solution can be applied using a flexo or gravure printing process. The method then involves forming side gussets in the tube and making traverse seals in the tube, thereby dividing the tube into pillowcases. The pillowcases are separated at the seals to form a series of end-sealed gussetted pillowcases which are stacked to form a bag pack. Next, the bag pack is cut along a bag-mouth contour to from a plurality of T-shirt bags. The bag-mouth contour forms a set of laterally spaced handles each having a receiving aperture for a conventional support rod of a dispensing rack, a central tab having a mounting aperture, and an open mouth region.
    Type: Grant
    Filed: September 22, 1994
    Date of Patent: November 7, 1995
    Assignee: Inteplast Corporation
    Inventors: Ben Tseng, Peter Chen
  • Patent number: 5435647
    Abstract: Flexible bag handle(s) that is constructed of a non-porous, flexible membrane filled with a gaseous substance. The membrane encapsulates the gaseous substance to form a gas-filled pocket(s) that comprises a bag handle(s). The gas-filled pocket(s) that comprises the Gas-Filled Handle(s), can be of various size(s), shape(s) and arrangement(s) depending upon the desired load-bearing characteristics and desired length of the handle(s).
    Type: Grant
    Filed: July 18, 1994
    Date of Patent: July 25, 1995
    Inventor: David A. Oliver
  • Patent number: 5427245
    Abstract: The bag (1) for packaging compressible products arranged vertically in the form of at least one horizontal pile, substantially parallelepipedal in shape, comprising two front walls (5, 6), two side walls (3, 4), one bottom wall (7) and one top wall (8), is provided with an opening device consisting of a line of weakness forming a discontinuous contour, comprising two first vertical precut lines (13) made in each of the front walls (5, 6) and being extended by two second precut lines (15) made essentially in the part forming the base (10) of the attached handle (9), and a third precut line (14) made in the top wall (8).
    Type: Grant
    Filed: November 30, 1993
    Date of Patent: June 27, 1995
    Assignee: Peaudouce
    Inventor: Jean Roussel
  • Patent number: 5425513
    Abstract: A trash bag dispensing package including a T-shirt bag having a roll of continuous plastic bags. When the leading bag is being pulled from the roll and out the mouth of the T-shirt bag, the roll rotates within the T-shirt bag in an arrangement which provides controlled dispensing of the trash bags. The T-shirt bag may be conveniently hung by its handles from virtually any type of support.
    Type: Grant
    Filed: April 2, 1993
    Date of Patent: June 20, 1995
    Assignee: Webster Industries
    Inventor: Arnold N. Shainker
  • Patent number: 5415475
    Abstract: A disposable container for holding waste liquids for disposal comprises an impermeable tube-like body containing a pad of absorbent material secured in use to the inside thereof. The body has a pair of spaced handle-like loops extending from the rim of the body and a pair of ties extending from the same rim at positions intermediate the loops. The ties are capable of being tied together to effect a first closing action on the bag and the loops being capable of being tied together to effect a second closing action on said bag.
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: May 16, 1995
    Inventor: Alan F. Sandy
  • Patent number: 5362152
    Abstract: A T-shirt type plastic bag is adapted for carrying hot foods from fast food restaurants. The bag includes front and rear wall sections, gussetted side wall sections integrally connecting the front and rear wall sections together and means connecting the bottoms of the front, rear and gussetted side wall sections together to define a closed bottom. At least a part of the front and rear wall sections are open at the tops to define a mouth portion. Laterally spaced handles are integral with the front, rear and gussetted side wall sections and extend upwardly from opposed sides of the mouth portion. Apertures extend through at least one of the wall sections for providing a path for a venting air flow from the outside of the bag and through the inside of the bag when the bag is carrying hot food.
    Type: Grant
    Filed: September 24, 1993
    Date of Patent: November 8, 1994
    Assignee: Sonoco Products Company
    Inventors: Wade D. Fletcher, Harry B. Wilfong, Jr.
  • Patent number: 5361905
    Abstract: A package, which can be substantially hexahedral, is composed of a flexible polymer material and contains a plurality of articles. The package includes a front face wall, a back face wall, a top wall, a bottom wall and two oppositely located end walls. A plurality of stacks of the articles are contained within the package, and the article stacks arranged to extend in a generally parallel, side-by-side configuration with each stack including a multiplicity of the articles. Each of the stacks is aligned along an appointed stacking direction of the package, and each of the stacks has opposed facing ends thereof contacting opposed walls of the package. A designated opening mechanism extends across a selected primary opening wall of the package and extends across at least a portion of each of a pair of oppositely located, complementary opening walls of the package.
    Type: Grant
    Filed: September 22, 1993
    Date of Patent: November 8, 1994
    Assignee: Kimberly-Clark Corporation
    Inventors: Thomas P. McQueeny, Steven C. Gehling, William R. Newman, John E. Theobald, Paul Y. Yee
  • Patent number: 5244279
    Abstract: A flexible container or bulk bag for bulk materials such as animal feed, granular products and powdered products includes a generally tubular body defining a bottom end and a top end. A bottom seal closes the bottom of the body. Stitching or other mechanical elements seal and close the top end of the body after the container is filled with product. The body defines a single point lift at the top end of the body for transport of the filled container.
    Type: Grant
    Filed: January 27, 1993
    Date of Patent: September 14, 1993
    Assignee: Ralston Purina Company
    Inventor: Robert B. Law
  • Patent number: 5232148
    Abstract: A protective wrapper is provided that is especially well suited for packaging heavy products held by gripping elements during a packing phase. The protective wrapper is completely closed on three sides and is partially open on a fourth side that includes a passage means, e.g., a simple cut. The passage means makes it possible to first insert the product to be packaged into the wrapper while the product is held by a gripping element, and then to release the gripping element once the wrapper is in place around the product. The protective wrapper also includes a gripping means that facilitates extraction and holding of the wrapped product during its unpacking. A method for packaging that employs the wrapper is provided which can easily be automated.
    Type: Grant
    Filed: September 17, 1991
    Date of Patent: August 3, 1993
    Assignee: Bull S.A.
    Inventor: Jean-Claude Vilas-Boas
  • Patent number: 5207328
    Abstract: A bag and a bag pack consisting of a plurality of bags. Each bag has upstanding handles with apertures for mounting onto a bag loading rack. The cut formation of the apertures holds the handles of the bags together in the bag pack. The bag also has a center tab section for mounting on the bag loading rack. This tab section is permanently connected to the bag for removal with the bag when the latter is removed from the bag loading rack.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: May 4, 1993
    Assignee: Union Camp Corporation
    Inventors: Ajit K. Bose, Daniel F. Hamman, Paul L. Vest
  • Patent number: 5192133
    Abstract: The present invention relates to a flexible intermediate bulk container (FIBC) for transportation, storage and lifting of bulk material. The container has improved bottom and top construction, and it comprises a hose shape blank made from a round woven fabric or from at least one piece of flat woven fabric joined at its bottom and/or top end after folding the blank in three or more longitudinal folds each consisting of two layers. The length of the joint(s) is less than 1/4 of the container circumference. The FIBC has a filling opening, possibly a liner and might have a lifting loop which is formed by integral extensions of the side walls of the blank.
    Type: Grant
    Filed: September 10, 1991
    Date of Patent: March 9, 1993
    Assignee: Norsk Hydro a.s.
    Inventors: Anders Juel, Olaf Strand, Bjarne Omdal, Roger Lysfjord
  • Patent number: 5188235
    Abstract: A bag pack is disclosed formed of multiple stacked handle bags having aligned mounting apertures defined through the handle portions of the bags for reception of mounting rods therethrough. The mounting apertures are formed as elongated, generally vertically extending, slots having curved upper and lower portions. Elongated mounting slots make possible the use of shorter handles for the bags without sacrificing either the size of the mouth opening during loading or the carrying capacity of the bags. A central mounting tab on the multiple stacked bags has a vertical perforation extending between a generally horizontal central mounting aperture and the bag mouth, thus permitting the bag to be removed from a cooperating bag rack without leaving any portion of the central mounting tab on the bag rack.
    Type: Grant
    Filed: February 28, 1991
    Date of Patent: February 23, 1993
    Assignee: Superbag Corp.
    Inventors: Larry W. Pierce, Steve F. Zeigler, Jacobo Bazbaz
  • Patent number: 5174657
    Abstract: The present invention is directed to a duplex bag having a handle. The bag includes an inner and outer web of thermal plastic material. The outer web includes a front panel, a rear panel and a handle portion. The handle portion is integral with the front and rear panels and has a width less than the width of the front and rear panels. The inner web includes a front panel, a rear panel and a gusset portion. The gusset portion is integral with the front and rear panels and may have a line of perforations spaced from and parallel to the front and rear panels. All panels have about the same dimensions. The handle portion and the gusset portion may be adjacent one another at a top end of the bag. The front panel of the outer web overlies the front panel of the inner web and the rear panel of the outer web overlies the rear panel of the inner web. A side seam is formed at each lateral edge portion of said front and rear panels and seals the panels together.
    Type: Grant
    Filed: November 27, 1989
    Date of Patent: December 29, 1992
    Assignee: Paramount Packaging Corporation
    Inventor: Harry R. Peppiatt
  • Patent number: 5165799
    Abstract: Flexible square bottom bags which include side gusset panels having central inwardly oriented fin seams and which are sealed adjacent their lowermost corners to portions of the front and rear panels of the bags and wherein the entire width of the lowermost edges of the front and rear panels are sealed to thereby form bags having bottoms reinforced by triangular gusset seals at each corner and which have an outwardly oriented transverse bottom fin seam when erected.
    Type: Grant
    Filed: March 4, 1991
    Date of Patent: November 24, 1992
    Inventor: James R. Wood
  • Patent number: 5149201
    Abstract: A bag structure of a thermoplastic film material comprising front and rear bag walls connected by side walls and having an open mouth top portion, said open mouth portion being characterized by having handles located at opposite end regions thereof, said handles being of two films as a result of being integral extensions of said front rear and gusseted side walls, said bag having a bottom wall planarly extensible so as to form a rectangle with at least no substantial excess film outside of the bulk volumetric capacity of said bottom region of said bag.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: September 22, 1992
    Inventor: Gordon L. Benoit
  • Patent number: 5121995
    Abstract: The present invention provides a distinctive bag for receiving and containing selected articles. The bag includes a front panel having two opposed side regions and a top edge region. A back panel having two opposed side edge regions and a tip edge region is connected in facing relation to the front panel along the side edge regions thereof. A top gusset is connected to the top edge regions of the front panel. A handle web also connects to the top edge regions of the front and back panels to provide a carrying loop. The carrying loop is constructed to bridge over the top gusset and between the front and back panels in a configuration arranged to provide for an arm-suspension of the bag with the loop. The carrying loop provides at least two loop faces with each of the loop faces having at least one hand-grip region. Formed in each hand-grip region, there is a hand-grip opening configured to provide for a hand suspension of the bag.
    Type: Grant
    Filed: August 27, 1990
    Date of Patent: June 16, 1992
    Assignee: Kimberly-Clark Corporation
    Inventors: William R. Newman, Robert C. Austerman, Karl K. Oliver
  • Patent number: 5096305
    Abstract: A T-shirt or handle bag of plastic film material of the foldable type and provided with handles, which is connected in single file with further identical bags from which it may be separated by tearing-off along weakened areas. A roll formed from a continuous ribbon of bags is adapted to be supplied for use in apparatuses for automatically dispensing and opening the bags into which the goods that have been bought at the checkout counters of a store. In order to obtain a constant-size roll [(B)] by rolling up a continuous ribbon on a central core [(A)], the handle bag is dimensioned so that each one of its folded lateral portions [(S1-S2)] has a width which is not smaller than one third of the total width [(L)] of the bag in its flattened condition.
    Type: Grant
    Filed: November 28, 1990
    Date of Patent: March 17, 1992
    Assignee: A.W.A.X. Progettazione e Ricerca S.r.l.
    Inventors: Renato Rimondi, Angelo Cappi
  • Patent number: 5080497
    Abstract: A bag having a handle includes a front, a rear, and an end wall of flexible plastic, and is capable of being manufactured at high speed by automatic machinery. Left and right side walls of flexible plastic are provided, each side wall having a Y-shaped seam so that the bag assumes a cubic or hexahedral shape when filled. A flexible plastic handle is provided and bridges at least a portion of a rectangular end wall. Preferably, structure is provided for gaining access to the bag interior, and the plastic portions joined at the Y-shaped seams are substantially co-planar with no plastic overlap. The bag may be manufactured by folding a first flexible plastic sheet over on itself and then making an interior fold at the folded portion to provide a M-shaped cross section at one bag end. A second flexible plastic sheet is folded over on itself and affixed to the bag so as to span at least a portion of the first plastic sheet bag end having the M-shaped fold therein.
    Type: Grant
    Filed: June 5, 1990
    Date of Patent: January 14, 1992
    Assignee: Paramount Packaging Corporation
    Inventor: Harry R. Peppiatt
  • Patent number: 5074674
    Abstract: A bag mountable on laterally spaced support rods and a retainer disposed between the laterally spaced support rods of a support rack includes a front and a rear wall defining an open top. A pair of laterally spaced handles project upwardly from the open top of the bag. The handles include mounting apertures for the mounting of each handle on a corresponding support rod. The rear wall of the bag includes an aperture centrally disposed between the handles and below the open top for reception by the retainer for supporting only the rear wall of the bag on the rack.
    Type: Grant
    Filed: December 6, 1990
    Date of Patent: December 24, 1991
    Assignee: Vanguard Plastic, Inc.
    Inventors: Milton C. Kuklies, William C. Seanor
  • Patent number: 5056931
    Abstract: The instant invention relates to a handled thermoplastic bag made of a thermoplastic film comprising a high density polyethylene or a major amount of high density polyethylene and a minor amount of one or more other polymers, e.g., linear low density polyethylene. The handled bag is characterized by a front and rear bag wall, a closed bottom and an open mouth top portion having a pair of laterally spaced handles, said front and rear bag walls, between said handles defining an open bag mouth and is further characterized as comprising a smoother cut-out edge at corner portions of the open bag mouth than provided at said lower mouth edge whereby the smoother cut-out edge of the corner portion reduces the tendency of the thermoplastic film to tear at the corner when subjected to stress. Use of the aforementioned smooth corner cut-out is also beneficial in manufacturing handled bags at commercial manufacturing rates.
    Type: Grant
    Filed: July 14, 1989
    Date of Patent: October 15, 1991
    Assignee: First Brands Corporation
    Inventor: John W. Williams
  • Patent number: 5033868
    Abstract: A reusable flexible plastic bag is provided with a handle which serves to carry the bag and to reseal it. The bag is manufactured from two webs: a web from which the bag panels are formed and a web from which a loop handle is formed. The top end of the bag is not provided with a gusset. The loop handle is secured to the bag panels and is provided with a frangible region which can be broken to form two separate handle portions. The handle portions are releasably joined by mating slide closure structure. The slide closure joint can be peeled away by pulling the handle portions apart thereby providing access to the folded top end of the bag. The top end of the bag may be provided with perforations which may be broken to gain access to the bag contents. The bag may be resealed by means of the handle slide closure.
    Type: Grant
    Filed: October 13, 1989
    Date of Patent: July 23, 1991
    Assignee: Paramount Packaging Corporation
    Inventor: Harry R. Peppiatt
  • Patent number: 5011298
    Abstract: The invention is of a halter top, thermoplastic resin film bag which is an improvement over the T-shirt type of bag, in that the base area where the gussets are sealed is strengthened by the trapezoidal configuration given to the bag of the invention.
    Type: Grant
    Filed: June 7, 1990
    Date of Patent: April 30, 1991
    Assignee: Union Camp Corporation
    Inventors: Ajit K. Bose, Kurt F. Strater
  • Patent number: 5002400
    Abstract: A flexible container is formed from a hose-like blank having two diametrically opposite longitudinal slots or holes and at least one intermediate slot or hole. One half of the hose-like blank is inserted through the intermediate slot in such way that one inner sack, one outer sack and at least one integral lifting loop defined by material areas are formed. Two material areas are formed by material sections between the opposite slots and the intermediate slot extending from the outer sack directly into the inner sack. A third material area is formed by a material section between the opposite slots and extending from the outer sack between the first two material area and into the inner sack.
    Type: Grant
    Filed: December 21, 1989
    Date of Patent: March 26, 1991
    Assignee: Norsk Hydro a.s.
    Inventor: Olaf Strand
  • Patent number: 4981216
    Abstract: An easy opening bag pack and supporting rack system is provided which includes a plurality of gussetted bags of the T-shirt type or of the flat top type provided with bag mounting apertures through all of the bag walls on opposed sides thereof and additional cuts in the front wall portion and the front section of the gussetted side wall portions and in communication with the bag mounting apertures therein for effectively enlarging such apertures. A rack mounts the bag pack through the mounting apertures and includes stub shaft supports laterally spaced from each other and being of a length less than the outwardly extending dimensions of an open bag and greater than the thickness of the bag pack and include an enlarged portion on the free outer ends thereof of greater dimensions than the bag mounting apertures.
    Type: Grant
    Filed: January 31, 1990
    Date of Patent: January 1, 1991
    Assignee: Sonoco Products Co.
    Inventor: Harry B. Wilfong, Jr.
  • Patent number: 4943167
    Abstract: Disclosed is a bag including a front wall and a rear wall and having an open mouth portion in which the front wall and rear wall are joined by pleated portions or gussets. The bag is manufactured so that a longitudinal, thermally welded seam is placed inside a portion of at least one of the gussets at a point other than the central fold. The bag preferably includes handles which are integral extensions of the front and rear walls and the gussets. The bag manufactured according to the principles of the present invention thus eliminates or minimizes failure of thermally welded seams.Also disclosed is a method for manufacturing the bags and an apparatus for manufacturing the bags.
    Type: Grant
    Filed: June 12, 1987
    Date of Patent: July 24, 1990
    Assignee: Hilex Poly Company, Inc.
    Inventor: Edward Gelbard
  • Patent number: 4934535
    Abstract: An easy open flexible bag containing one or more stacks of flexible articles maintained in a state of compression in a direction substantially parallel to their thickness. For products such as disposable absorbent baby diapers, catamenial pads, incontinent briefs and the like, the degree of compression within the bag may be as much as 50% or more when compared to the uncompressed thickness of the stack of articles in question. In a particularly preferred embodiment, the bag totally encloses the stack or stacks of compressed flexible articles exhibits a substantially rectilinear shape. The bag preferably includes an integral carrying handle. The end panels and at least one pair of either the front and back or the top and bottom panels of the bag are subject to tension imposed by the stack of compressed flexible articles. This leaves at least one pair of panels, preferably the top and bottom panels, in a substantially untensioned condition.
    Type: Grant
    Filed: April 4, 1989
    Date of Patent: June 19, 1990
    Assignee: The Procter & Gamble Company
    Inventors: Delmar R. Muckenfuhs, James C. Baird
  • Patent number: 4925317
    Abstract: A flexible intermediate container has at least one improved lifting loop formed by joining integral extensions of a side wall structures. The extensions are at their upper free ends cut to form at least two flaps which are positioned above or below the extensions on both sides of a folding line or seam, thus forming a lifting loop joint comprising frictional area of overlapping layers of fabric material. Friction therebetween is secured by a frictional agent such 2500 glue or hot-melt and/or by a mechanical device. The lifting loop can be gathered together and surrounded by at least one band or sleeve.
    Type: Grant
    Filed: August 31, 1988
    Date of Patent: May 15, 1990
    Assignee: Norsk Hydro a.s.
    Inventors: Eirik Myklebust, Bjarne Omdal, Anders Juel, Olaf Strand, Erik Jonsgard
  • Patent number: 4923436
    Abstract: Disclosed is a bag including a front wall and a rear wall and having an open mouth portion in which the front wall and rear wall are joined by pleated portions or gussets. The bag is manufactured so that a longitudinal, thermally welded seam is placed inside a portion of at least one of the gussets at a point other than the central fold. The bag preferably includes handles which are integral extensions of the front and rear walls and the gussets. The bag manufactured according to the principles of the present invention thus eliminates or minimizes failure of thermally welded seams.Also disclosed is a method for manufacturing the bags and an apparatus for manufacturing the bags.
    Type: Grant
    Filed: November 26, 1985
    Date of Patent: May 8, 1990
    Assignee: Sonoco Products Company
    Inventor: Edward Gelbard
  • Patent number: 4911872
    Abstract: This invention relates to a process for making a tubular structure formed by a film of extruded synthetic matter whose walls are at least partially perforated, including the steps of extruding from an annular die a tubular film having gaps or voids obtained in manner known per se by teeth which temporarily obturate the outlet of said die, and extruding and forming the film on leaving the die after flow of matter in the plastic state, upstream of the die, in a ring-shaped passage of which the outlet constitutes the die, this passage being of constant thickness equal to the width of the extrusion slot and consequently to the final thickness of the film, the flow of plastic material in this ring-shaped passage causing an effect of lamination of the matter ensuring dimensional stability, particularly the thickness of the film obtained at the outlet of the die, and in particular avoiding the formation of excess thickness or surface roughness on the film thus extruded.
    Type: Grant
    Filed: December 20, 1988
    Date of Patent: March 27, 1990
    Inventors: Jean C. M. Hureau, Jacques Hureau
  • Patent number: 4911560
    Abstract: A plastic film bag with overlying front and rear bag walls, the upper edges of which define a bag mouth. Pleats defined in each bag wall extend vertically downward from the mouth-forming edges. The pleats, upon expansion by direct finger engagement therewith or the application of outwardly directed opposite forces on the opposed ends of the mouth portion of the bag, cause a lateral separation of the edges for initiating opening of the bag mouth. The bag may be vertically partitioned into lateral compartments with at least one wall of each compartment including a mouth-opening pleat therein.
    Type: Grant
    Filed: March 7, 1989
    Date of Patent: March 27, 1990
    Assignee: Sonoco Products Company
    Inventors: Gregory A. Hoover, E. Riley Rowe, James C. Miller, H. Gordon Dancy
  • Patent number: 4909636
    Abstract: A plastic grocery bag is provided with a tear-off coupon. The coupon is configured with the rest of the bag for rapid production and easy detachment from the bag. The plastic bag is fabricated from tubes of blown plastic. The tube is first collapsed and printed and thereafter folded at the side edges to form two "W" shaped folds along the bag sides. These folds permit the bag, when expanded, to accommodate the required containment volume. As a next step, the folded tube is both heat-sealed and cut to form sealed incremental folded tubes. These tubes are in turn cut at the bottom to form the bottom of the bag and at the top to form the paired handles on either side of an opening, which handles are characteristic of the T-shirt bag. Centrally of the top of the two handles, and for the purpose of holding a group of such bags together, there is configured on the forward wall and rearward wall of each bag a tab.
    Type: Grant
    Filed: April 26, 1988
    Date of Patent: March 20, 1990
    Assignee: Cupples Paper Bag Company
    Inventors: Robert B. De Matteis, Wayne A. Pflueger
  • Patent number: 4896366
    Abstract: A closure for a T-shirt bag includes a sheet of material, the sheet of material defining first and second openings in which to place first and second handles of a T-shirt bag in order to restrain the handles for purposes of retaining the T-shirt bag at least partially closed. The first and second openings have substantially identical shapes, each being dimensioned and arranged to receive a portion of each handle. Each opening may include an access opening portion and an interior portion, the access opening portion being dimensioned and arranged to enable a user to pass handles through it into the interior portion. The interior portion of each opening may include first and second channel portions that extend on opposite sides of the access opening, each channel portion receiving a separate one of the handles.
    Type: Grant
    Filed: November 18, 1988
    Date of Patent: January 23, 1990
    Assignee: World Manufacturing, Inc.
    Inventor: Jack Oxman
  • Patent number: 4877336
    Abstract: The present invention is directed to a duplex bag having a handle. The bag includes an inner and outer web of thermal plastic material. The outer web includes a front panel, a rear panel and a handle portion. The handle portion is integral with the front and rear panels and has a width less than the width of the front and rear panels. The inner web includes a top panel, a bottom panel and a gusset portion. The gusset portion is integral with the top and bottom panels and has a line of perforations spaced from and parallel to the top and bottom panels. All panels have about the same dimensions. The handle portion and the gusset portion are adjacent one another at a top end of the bag. The front panel overlies the top panel and the rear panel overlies the bottom panel. A side seam is formed at each lateral edge portion of said front, top, bottom, and rear panels and seals the panels together.
    Type: Grant
    Filed: March 6, 1989
    Date of Patent: October 31, 1989
    Assignee: Paramount Packaging Corporation
    Inventor: Harry R. Peppiatt
  • Patent number: RE34019
    Abstract: The present invention relates to thermoplastic bag structures which are characterized by having a pair of carrying handles which are formed integrally with the bag walls, and extend upwardly from the open mouth portion of the bag. The configuration of the individual bag handles is such that there is reduced tendency for that portion of the handle which is in the user's palm, when such bags are loaded are carried, to curl into a small cross sectional area, commonly known as roping. Additionally, the individual bags are constructed so that when the bags are loaded and being carried by the user, the stress points around the bag mouth are distributed to areas which are less likely to rupture and tear as a result of stress concentration.
    Type: Grant
    Filed: August 16, 1991
    Date of Patent: August 4, 1992
    Assignee: Mobil Oil Corporation
    Inventors: Milton C. Kuklies, William G. Orem