Plural Paper Bags (i.e., Stack Or Pack) Patents (Class 206/554)
  • Patent number: 5575393
    Abstract: A stack of a plurality of headerless plastic bags are assembled together for individual dispensing. Each bag comprises a front wall having a first body portion and a first lip and a rear wall attached to the front wall. The rear wall includes a second body portion which overlies the first body portion of the front wall and a rear lip which extends beyond the front lip of the front wall. The bags are collated into a stack and are removably joined to one another by forming a cold weld in and between the rear lips of the rear wall of adjacent bags. The cold welds are formed by pressing the rear lips of the bags together under pressure, but without the application of heat. The cold welds join the plurality of bags in the stack together until the cold welds which join a particular bag to the stack are severed. Each bag is dispensed in its entirety without any residual waste.
    Type: Grant
    Filed: July 28, 1995
    Date of Patent: November 19, 1996
    Assignee: TC Manufacturing Co., Inc.
    Inventor: Terry D. Gebhardt
  • Patent number: 5562213
    Abstract: A stack of T-shirt type plastic film bags having handles extending from an openable mouth are formed into a pack by bonding together bridging strips extending between the handles. A dispensing rack includes a frame providing an upper horizontal edge over which the bag handles are draped. The bridging strips are hooked over and retained by a relatively wide tongue extending rearward from a point on the frame below the horizontal edge.
    Type: Grant
    Filed: August 11, 1994
    Date of Patent: October 8, 1996
    Assignee: BPI Packaging Technologies, Inc.
    Inventor: Richard M. Wile
  • Patent number: 5561967
    Abstract: A bag and system for dispensing self-opening thermoplastic bags or the like from a stack of bags. The present system is configured such that it may be utilized with a variety of off-the-shelf rack configurations, and to provide optimal characteristics for dispensing bags one at a time, while further providing a system wherein the bag to be dispensed may be retained in an open position, to allow for the loading thereof with contents for carrying, such as purchased goods or the like. The system is further configured such that the loaded bag, when dispensed, draws the next bag in the stack forward into an open loading position such that it is ready to be loaded with goods without further manipulation by the attendant.
    Type: Grant
    Filed: November 10, 1994
    Date of Patent: October 8, 1996
    Inventor: Tai H. Nguyen
  • Patent number: 5551569
    Abstract: The instant invention is a plastic bag dispenser and waste receptacle for use in the care and maintenance of domestic animals. A hollow animal structure having a first concealed chamber is available for placement of plastic bags and various maintenance tools for use in servicing the relief station of a domestic pet. The plastic bags are used to receive pet waste such as cat litter. A second concealed chamber is accessible through a trap door for temporary placement of the pet waste. The device allows for more frequent maintenance of a pet's relief area by providing the necessary maintenance items to maintain the waste in a closed and sealed chamber where they can be disposed of at the convenience of the pet's owner.
    Type: Grant
    Filed: December 6, 1994
    Date of Patent: September 3, 1996
    Inventor: Joni M. Garvin-Mazzarisi
  • Patent number: 5542538
    Abstract: A system of waste material recycling involving the formation of bales of recyclable waste, the bales consisting essentially of recyclable waste material and waste storage containers therefor, wherein the waste storage containers are filled by the individual consumer with the recyclable waste material prior to the formation of the bales and are formed of material that is compatible for recycling with the waste material. The waste storage containers are preferably obtained simultaneously with, and as a component of, the goods which ultimately become the recyclable waste material stored in the containers. In the preferred embodiment, the waste storage container comprises a compactly packaged storage container which is compatible for recycling with newsprint and obtained simultaneously with, and as a component of, a single edition of a newspaper, or the like.
    Type: Grant
    Filed: March 9, 1992
    Date of Patent: August 6, 1996
    Inventor: Theodore A. Lutz
  • Patent number: 5526934
    Abstract: A wicketless pack of thermoplastic bags includes a stack of a number of individual thermoplastic bags. Each of the bags has a bottom edge, upper and lower walls, a pair of side edges, and an open top end. A lip segment is provided adjacent the open end of each individual bag. The lip portion is an extension of the material forming the lower wall of a respective bag and includes at least one locating hole. A perforated tear line is formed between the open end of the bag and the lip portion. The lip segments of the stack are bonded together with ultrasonic vibratory energy to form a welded pad of lips as part of the bag pack. The welded pad is formed by moving at least one shaped ultrasonic horn downward through the stack of consecutive lips while activating the shaped horn with ultrasonic vibratory energy to form a continuous tapered weld through the stack of lip portions.
    Type: Grant
    Filed: April 29, 1994
    Date of Patent: June 18, 1996
    Assignee: Huntsman Packaging Corporation
    Inventors: Gordon F. Pickering, Bruce R. Wilkes
  • Patent number: 5524763
    Abstract: In the dispensing system disclosed herein, an aligned stack of T-shirt type bags are assembled within a disposable tubular cartridge with the loop handles and a significant portion of the bottoms of the bags extending beyond the ends of the tubular cartridge. The central portions of the bag mouths are releasably attached to an adjacent portion of the cartridge and a rack is provided for supporting the cartridge essentially horizontally with the handles and the bottom portions of the bags hanging freely therefrom. Accordingly, the top bag in the stack can be removed by grasping the exposed bottom portion and pulling the remainder through the tubular cartridge, tearing the mouth of the bag free from the attachment.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: June 11, 1996
    Assignee: BPI Packaging Technologies, Inc.
    Inventor: Richard M. Wile
  • Patent number: 5524762
    Abstract: The invention provides a disposable litter bag system comprising a holder with a clip for holding a bundle of tear-off bags. Each bag is provided with a flap adjacent to a top opening in the bag having at least one flap opening for insertion therethrough of engaging tabs projecting from the clip. The clip has opposed jaws hingedly connected together, with engaging stops projecting from one jaw and a receiving channel formed in the second jaw for detachably lodging the engaging stops therein. The holder preferably comprises a pair of flexible straps extending through the clip which can be trapped in the clearance between the panels of an automobile cabin, for example the glove compartment.
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: June 11, 1996
    Inventors: Barry W. Shafran, Charles G. Shepherd
  • Patent number: 5497884
    Abstract: In a packet containing a plurality of dual tab merchandising bags, each bag includes a front panel, a rear panel, each side of said bag between the front and rear panels including, a front gusset folded from the front panel, a rear gusset folded from the rear panel, the front and rear gussets joined at a common gusset fold to form an endless tube of bag material around the periphery of said bag. The bags are sealed and severed at the bottom and open and severed at the top, and collapsed and folded one on another so that said gusset sides are folded upon themselves and collapsed under and between the bag front and rear panels. Handle holes are provided centrally of said front and rear panels adjacent said open top of the bag. Tabs are adjacent the sides of the bags at the top of the bag, the tabs having a first portion overlying the gussets and a second portion overlying the central portion of the bag between the gussets, these tabs fused together to form said packet of bags.
    Type: Grant
    Filed: September 24, 1993
    Date of Patent: March 12, 1996
    Assignee: Polytec Packaging
    Inventors: Robert B. DeMatteis, Ralph E. Schlender
  • Patent number: 5495946
    Abstract: A wicketless saddle pack of thermoplastic bags includes a first and second stack of a number of individual thermoplastic bags oppositely opposed over a common welded pad segment. Each of the bags has a bottom edge, upper and lower walls, a pair of side edges, and an open top end. A lip segment is provided adjacent the open end of each individual bag. The lip portion is an extension of the material forming the lower wall of a respective bag and includes at least one locating hole. A perforated tear line is formed between the open end of the bag and the lip portion. The lip segments of the two stacks are bonded together with ultrasonic vibratory energy to form the welded pad of lips. The welded pad is formed by moving at least one shaped ultrasonic horn downward through the stack of consecutive lips while activating the shaped horn with ultrasonic vibratory energy to from a continuous tapered weld through the stack of lip portions.
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: March 5, 1996
    Assignee: Huntsman Packaging Corp.
    Inventors: Gordon F. Pickering, Bruce R. Wilkes
  • Patent number: 5487467
    Abstract: A receptacle for plastic shopping bags and like articles comprising an upper member having the general structure and appearance of an upper portion of a doll body, and a lower element structured and disposed for receiving articles therein. The lower element, which has the general shape and configuration of a skirt, is attached to the upper member and extends downwardly therefrom. The lower element defines a cavity in which plastic shopping bags can be stored, and also has an opening in communication with the cavity that is sized and configured to allow passage therethrough of a plastic shopping bag. The receptacle may also include means structured and disposed on the lower element for either partially or fully closing the opening and means for suspending the receptacle from a vertical surface. The upper element of the receptacle may additionally include a pair of arms connected together so as to form a holding member for a dish towel.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: January 30, 1996
    Inventor: Victoria Sherman
  • Patent number: 5469969
    Abstract: A self-opening pack of plastic bags for use with a bagging rack. The pack of plastic bags is formed of plastic material which has been exposed to corona surface treatment. Each plastic bag in the pack of bags has a central tab portion between its two upwardly extending handles, which are at the sides of the mouth of the T-shirt bags. A central tab portion is located on the front and rear walls in the mouth region of the plastic bags. The central tab portion has an aperture for receiving a retaining hook of a bagging rack, and a tearing cut which extends across the central tab portion, except for uncut portions near side edges of the central tab. The tearing cuts pass through the stack of bags and follow a non-straight path. Frangible pressure bonding is found along both sides of said tearing cut. Frangible pressure bonds are also formed on inner handle edges or edges of apertures or flaps formed in the stack of handles.
    Type: Grant
    Filed: March 1, 1994
    Date of Patent: November 28, 1995
    Assignee: Durabag, Inc., a California corporation
    Inventor: Frank F. J. Huang
  • Patent number: 5469970
    Abstract: A bag pack (10) of handle bags (14) for suspension on a bag rack (12) comprises a plurality of stackable handle bags (14) having a front wall (24), a rear wall (26), a pair of laterally spaced handles (28), and an adhesive (16) positioned between the rear wall (26) of each bag (14) and the front wall (24) of each successive bag (14) in the bag pack (10). The front wall (24) is joined opposite to the rear wall (26) and defines an enclosure having an open top (30), opposed sides (31), and a bottom (33). The handles (28) extend upwardly above the open top (30). Each bag (14) also has a center mount (34) capable of releasably supporting the center of the stackable bag (14) on the bag rack (12).
    Type: Grant
    Filed: June 3, 1994
    Date of Patent: November 28, 1995
    Inventor: Nam T. Li
  • Patent number: 5467572
    Abstract: The bagging system disclosed herein utilizes T-shirt type bags which are mounted on the projecting arms of a rack by means of holes through the handle portions of the bags. Between the handles a mounting tab extends upward from the front and back panels of the bag. Near its upper end, each tab includes an aperture which can be placed over a mounting hook on the rack and, below this aperture, is a transverse slit leaving only easily severed portions on each side thereof. An adhesive bond is provided between the adjacent tabs in successive sacks. This bond is provided on the facing portions of the mounting tabs above the bag mouth and below the respective transverse slit. The bond is strong enough to tear the easily severed portions. Accordingly, removal of one bag from the rack causes the front wall of the next bag to be torn from the respective central tab and that next bag is then opened across the arms while remaining attached to the bag behind.
    Type: Grant
    Filed: April 1, 1992
    Date of Patent: November 21, 1995
    Assignee: EPI Packaging Technologies, Inc.
    Inventors: Richard M. Wile, Lawrence Cole
  • Patent number: 5465846
    Abstract: A bag dispensing system has numerous thin plastic bags weakly attached together to form a bag pack, and a rack for supporting the bag pack and dispensing individual bags. Each bag has a tear-away release means which includes at least one centrally located opening for receiving a support finger of the rack, and is separated from an upper edge of the bag by a tear through portion. At least one pressure point is located adjacent the tear through portion. Each bag has a pair of opposed handles, each of which includes a flap-free opening for receiving a side support rod of the rack. The bag pack has successive overlying layers of thermoplastic film which form successive outside bag surface to outside bag surface contacts alternating with inside bag surface to inside bag surface contacts. Each layer of the bag pack is weakly joined to both adjacent layers without adhesive.
    Type: Grant
    Filed: March 8, 1994
    Date of Patent: November 14, 1995
    Assignee: Atlantic Packaging Products Ltd.
    Inventors: David Blyth, David Granovsky, Greg Ledger, Bruce Smith
  • Patent number: 5465845
    Abstract: The invention involves a system for bag pack support, easy dispensing, loading and removal of grocery bags involving a pack of bags and a rack suitable for the dispensing of the bags. The pack includes a plurality of undershirt type bags having integrally extended double-loop handles in the bag mouth. Each bag mouth is distinguished by being free of any suspension tabs. Thus, in bag pack form there is no "header". Suspension orifices are located in the handles of the bags. The pack of bags is employed with a rack which includes a pair of spaced parallel cantilevered rods having free ends. The bag pack is threaded onto the support rods by means of the support orifices. The rack includes a restraining means adapted to engage at least some of the bags of the pack so as to at least inhibit any significant forward movement of the pack as individual bags are loaded and removed from the rack. Means are included with the bag pack to secure the plurality of bags in a registered condition.
    Type: Grant
    Filed: February 9, 1994
    Date of Patent: November 14, 1995
    Assignee: Mobil Oil Corporation
    Inventors: Allen J. Norby, Randolph D. Prader
  • 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: 5457944
    Abstract: A wicket for a bagging machine is useful for placing a plurality of objects in a first bag (11) of a plurality of juxtaposed bags. Each bag has a front (17) and back (16) wall portion and an extended tab (13). The extended tab 13 has at least two wicket apertures (18) and the bottom of the bag 71 has at least one bottom wicket aperture (19). The bags are held in a wicket comprising upper wicket pins (12) and lower wicket pin (14). Lower wicket pin holds the bottom (71) of the bag. Lower wicket pin (14) aids in overcoming difficulties experienced with bags sticking to one another. The bag mouth is opened, e.g. with an air jet, and then clamped and pulled open. The machine is useful for packaging liquid-filled pouches, vegetables and the like in bags which are placed in a case or box.
    Type: Grant
    Filed: August 10, 1994
    Date of Patent: October 17, 1995
    Inventor: Arnold Lipes
  • Patent number: 5450964
    Abstract: A hanger system including a flexible, resilient plastic hanger for selectively suspending a bag having a pair of holes extending therethrough. The hanger includes a pair of opposing, spaced ears, the distance between the ears being longer than the distance between the bag holes. The hanger may be flexibly deformed from its normal state so that each ear may be selectively inserted into or retracted from a respective one of the bag holes. The hanger system may also include at least one of the bags, and if a plurality of bags are used, then they may be heat melted together along an upper edge.
    Type: Grant
    Filed: May 10, 1994
    Date of Patent: September 19, 1995
    Inventor: Richard L. Miller
  • Patent number: 5427246
    Abstract: A grocery bag storage tube for the convenient storage and retrieval of plastic grocery bags. A hollow tube of appropriate diameter has a sturdy and weighty base holding the hollow tube upright. Within the confines of the hollow tube, a weighted plug capable of slidable travel within the interior of the hollow tube is connected as by cords to a cap and to the bottom end of the hollow tube. Plastic grocery bags may be inserted into the hollow tube above the plug once the cap has been removed. Removal of plastic grocery bags is effected by pulling the cap away from the top end of the hollow tube. As the cap is displaced away from the top end of the hollow tube, it pulls the plug with it. Any plastic bags inside the hollow tube between the plug and the cap are urged outwards towards the mouth of the tube by the plug. The plastic bags are then easily retrieved by pulling them from the hollow tube as they emerge therefrom.
    Type: Grant
    Filed: September 19, 1994
    Date of Patent: June 27, 1995
    Inventor: George Hadjikhani
  • Patent number: 5419437
    Abstract: Snap and fill plastic film bags and a process of opening and placing product in the plastic film bags. A reclosable zipper is provided at the opening of the bag leading to the bag cavity. A lip extends from the front wall above the reclosable zipper and a header portion extends from the back wall above the reclosable zipper. A part of the header portion is supported on a support structure for carrying the bag and a perforation is provided on the header portion above the reclosable zipper. The bags are initially closed and, during the process of opening and placing product therein, the operator grips the bag front wall lip and by pulling the lip away from the support structure, the complementary zipper profiles are separated and, thus, opening the bag. Further pulling of the lip from the support structure causes the severing of the bag from the header portion at the perforation.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: May 30, 1995
    Assignee: Packaging Innovations, Inc.
    Inventor: David C. Huseman
  • Patent number: 5405021
    Abstract: The present invention is a dispenser for dispensing individual pre-formed stacked bags or sheets. The dispenser includes a casing and an anchor plate releasably engaged within the casing. A catch means secured to the underside of the anchor plate engages with a hole in the stack of bags or sheets. The bags or sheets are folded once around the edge of the anchor plate so that the free ends of the bags or sheets project from the mouth of the casing. Individual bags or sheets can be detached at the free end of the stack by pulling the bag or sheet away from the dispenser. Detachment of more than a few bags at a time is made difficult by frictional effects in the stack. An alternative arrangement in which the anchor plate is fixedly mounted to a base is also described.
    Type: Grant
    Filed: August 2, 1993
    Date of Patent: April 11, 1995
    Assignee: Dispense A Bag Systems Limited
    Inventor: Martin D. Smithson
  • Patent number: 5386910
    Abstract: A container for plastic bags has a mainly flat rear mounting portion for attachment to a supporting surface, two opposing, partially curved side walls, and a bottom portion. The top of the container is open. A slit extends vertically between the side walls, which extend toward each other opposite the mounting portion. A user can insert bags into the container through the open top and press them down to the bottom of the container. The user's wrist thereby fits in the slit between the side walls. Bags can be removed from the container by pulling them out through the slit.
    Type: Grant
    Filed: March 26, 1993
    Date of Patent: February 7, 1995
    Inventor: Olle G. Liss
  • Patent number: 5368165
    Abstract: A bag pack or stack dispenser system incorporating its shipping container (C) to dispense the bags using a frictional, template system (17A & 17B) to present the bag (8) in an open disposition when it is dispensed in a longitudinal direction (25). A unique thermoplastic bag is used, as part of a convenient and reliable system maintaining the alignment of the bags and previewing for greater ease in dispensing the bags on an individual basis. The template system incorporates a frictional contact surface for encouraging a bag, when being dispensed, to come out in an open disposition. The template may be made of a polystyrene bock, cardboard, etc., either independent of or emanating item container itself. The container has a removable, perforated, dispenser door (16), configured to provide convenient access to the bags (8), while encouraging communication of the bag being dispensed with the template for opening the bag during the dispensing operation. An alternative embodiment (FIG.
    Type: Grant
    Filed: March 16, 1992
    Date of Patent: November 29, 1994
    Assignee: API, Inc.
    Inventor: Tai Ngyuen
  • Patent number: 5363980
    Abstract: A disposable waste container having a substantially rigid shell to which a stack of nested plastic bags is attached and supported thereby. The bags are serially separable from each other, and the outermost of the bag stack permanently attached to the shell for ultimate disposal therewith. The entire unit is collapsible by flattening the shell with the bag stack mounted therein for ease in transportation and storage.
    Type: Grant
    Filed: September 22, 1993
    Date of Patent: November 15, 1994
    Inventor: Stephen J. Mulcahy
  • Patent number: 5363966
    Abstract: A plastic bag bundle comprised of a plurality of juxtaposed flat plastic bags each having a front and rear wall panel and a mouth opening for inserting one or more articles in the bag. A flat article(s), such as coupons, cards, packets, etc., is retained captive in one of the front and rear panels. The bundle is formed of bags having the flat article in some of said bags disposed offset from said article in others of said bags. The bags with the offset articles are interposed in a predetermined sequence with the other bags so as to form a bundle having a generally constant thickness in the area of the juxtaposed panels. Such bag bundles are used in bagging machines where articles are dropped in a first of this bundle of bags which is opened, and wherein the bundle is usually held on wicker pins disposed next to a loading station.
    Type: Grant
    Filed: October 12, 1993
    Date of Patent: November 15, 1994
    Assignee: Glopak Inc.
    Inventors: Norberto Czech, Robert Lauzon
  • Patent number: 5363965
    Abstract: A bag and system for dispensing self-opening thermoplastic bags or the like from a stack of bags. The present system is configured such that it may be utilized with a variety of off-the-shelf rack configurations, and to provide optimal characteristics for dispensing bags one at a time, while further providing a system wherein the bag to be dispensed may be retained in an open position, to allow for the loading thereof with contents for carrying, such as purchased goods or the like. The system is further configured such that the loaded bag, when dispensed, draws the next bag in the stack forward into an open loading position such that it is ready to be loaded with goods without further manipulation by the attendant.
    Type: Grant
    Filed: September 20, 1993
    Date of Patent: November 15, 1994
    Inventor: Tai H. Nguyen
  • Patent number: 5353950
    Abstract: A flexible, collapsible trash bag dispenser is attached to the bottom of a trash can by an adhesive tape. The trash bags are connected in a string and stored in the dispenser with the last bag being connected to the pouch. The trash bags are pulled out one at a time, and expanded in the container. When the expanded trash bag is full of trash, it is removed from the container, pulling up the next bag to replace the full trash bag. The process continues until the last bag, which is marked, indicates the end of the string of bags. The last trash bag is attached to the pouch so that they can be removed together when the last trash bag is full. The flexible pouch is collapsed as trash is delivered into the bag.
    Type: Grant
    Filed: September 13, 1993
    Date of Patent: October 11, 1994
    Inventors: Richard S. Taylor, Dennis P. Forhan
  • Patent number: 5348399
    Abstract: The bags may be sculptured with a wave pattern defining a periphery of the corner regions on either side of the mouth of the bag. The bags may be secured to two tabs which are connected to the corner regions via the wave pattern, which is perforated. By attaching the tabs to a carton and pulling the bag, the bag severs cleanly from the tabs at the waveform perforation.
    Type: Grant
    Filed: December 23, 1992
    Date of Patent: September 20, 1994
    Inventor: Robert B. DeMatteis
  • Patent number: 5346310
    Abstract: A bag and system for dispensing configured to minimize the probability of stress fractures in the dispensed bag, and tearing associated therewith, while providing a system which leaves no "throw away" product on the rack after dispensing a bag stack, as the present system has no central tear-off tab. The present system teaches the utilization of reinforced, radially configured handle support slits to provide an opening for allowing the passage of a horizontal handle support member therethrough, the support slits further configured to provide maximum opening of the bag mouth for easier loading, and easier placement of the bag pack upon the rack. Unlike prior art systems, the radial slit of the present invention is configured to easily spread apart to receive the handle support member, without tabs or folds formed therein.
    Type: Grant
    Filed: December 9, 1993
    Date of Patent: September 13, 1994
    Assignee: Advance Poly Bag, Inc.
    Inventor: Tai H. Nguyen
  • Patent number: 5341933
    Abstract: A storage and dispensing device for storing plastic shopping bags and holding them ready for retrieval, comprises a tube 12 of cloth fabric having an entry opening 14 at the top and a dispensing opening 16 at the bottom. The tube has a drawstring 18 around the entry opening and an elastic band 20 sewn in a hem around the dispensing opening.
    Type: Grant
    Filed: February 12, 1993
    Date of Patent: August 30, 1994
    Assignee: Roger C. Kriel
    Inventor: Barry L. Willows
  • Patent number: 5335788
    Abstract: The invention provides self-opening polyethylene film bag stacks which do not require a separate adhesive layer between adjacent bags. The self-opening bag stack according to the invention preferably include a plurality of stacked t-shirt type high density polyethylene film bags releasably adhered together. At least an upper portion of the outer surface of the front and rear walls of each of the bags in the bag stack has been corona treated and at least one localized compressed area extends transversely through the bag stack in the upper portion of the bags such that the stack has a decreased thickness in the localized compressed area and so that adjacent outer wall corona treated surfaces defined by the localized compressed area are releasably adhered together.
    Type: Grant
    Filed: March 27, 1992
    Date of Patent: August 9, 1994
    Assignee: Sonoco Products Company
    Inventors: M. Wayne Beasley, Wade D. Fletcher, Harry B. Wilfong, Jr.
  • Patent number: 5333730
    Abstract: Plastic bags made of film are suspended in a pack on a rack having support rods for suspending the bags by their handles. During removal of a lead bag from the pack, adhesive contact causes opening of the next bag.
    Type: Grant
    Filed: March 31, 1993
    Date of Patent: August 2, 1994
    Assignee: Mobil Oil Corporation
    Inventor: Dana M. Boyd
  • Patent number: 5332097
    Abstract: In the bag pack disclosed herein, a stack of T-shirt type plastic film bags are held in a paperboard cartridge which is folded to provide front and back panels bridged at the top. The back panel has a cutout tongue which is folded forward under tearaway strips linking the top ends of the bag handle portions. The tongue retains the tearaway strips in the cartridge as individual bags are torn downwardly from the pack.
    Type: Grant
    Filed: December 15, 1992
    Date of Patent: July 26, 1994
    Assignee: BPI Environmental, Inc.
    Inventor: Richard M. Wile
  • Patent number: 5323909
    Abstract: A system for supporting and dispensing thermoplastic, rack-mounted handle bags is disclosed, including an adapter hook, a support rack having a centrally disposed retainer, and laterally spaced, outward protruding suspension arms. The adapter hook includes a base member with a hook extending perpendicular therefrom, and is designed to slip over the retainer. Also disclosed are handle bags, which are suspended by the suspension arms and adapter hook, each bag including a protruding area in a front bag wall and a rear bag wall. A horizontal aperture in each bag wall at the protruding area provides an opening through which the adapter hook passes. To facilitate detachment of the protruding area from the adapter hook, a series of vertical perforations is incorporated into the protruding area extending from the horizontal aperture up to the edge of the protruding area.
    Type: Grant
    Filed: April 29, 1992
    Date of Patent: June 28, 1994
    Assignee: Orange Plastics, Inc.
    Inventors: Carmelo Piraneo, Salim S. Bana, Jonathan Karp
  • Patent number: 5307935
    Abstract: Packs of T-shirt type plastic shopping bags are fabricated in such a manner that when the bags are mounted on conventional racks, as each bag is pulled off the rack, the front wall of the next ensuing bag is pulled out to open the bag for the depositing of articles to be packed in the bag. This is accomplished by providing a special configuration for the central tab which is hooked on the upwardly extending element in the rack. The tab has a narrow neck which is partially slit between the neck edges and is adhered to the tabs of adjacent bags by an adhesive spot applied in hot melt condition below the slit.
    Type: Grant
    Filed: August 23, 1993
    Date of Patent: May 3, 1994
    Inventor: Gary Kemanjian
  • Patent number: 5301832
    Abstract: A method and device for dispensing plastic shopping bags in one or more different packs, each pack having bags of the same size with hook-receiving openings in the vicinity of the top edges of its bags, the device including a rack behind and below which is provided a downwardly extending hooking element centrally aligned with the bar. The bags of each pack may be brought up and draped over the mounting plate in reverse position, then their hook-receiving openings are pushed over the hooking elements. After being so disposed and hooked, the bags are then brought back forward from their reverse position and draped over the transverse bar to cause them to hang downwardly in front of the hooking element. Removal of a bag is accomplished by grasping the downwardly hanging bag and pulling out from the remainder of the draped bag packs to detach it from the hooking element.
    Type: Grant
    Filed: April 19, 1993
    Date of Patent: April 12, 1994
    Assignee: The Avantage Group, Inc.
    Inventor: Mark E. Daniels
  • Patent number: 5290104
    Abstract: A foil bag has its upper end provided with a seam weld (14) interconnecting all of the bag walls and having the handle ledge (16a) of a handle (16) welded to its outer side. The handle (16) is made from a flexible foil material. In a foil bag line consisting of successive foil bags (12), the handle (16) of one respective foil bag overlaps the adjacent foil bag. The handles consist of a bendable foil material so that the foil bag line can be guided about processing and pressure rollers. The handles (16) are welded to seam welds (14) connecting the two side walls.
    Type: Grant
    Filed: October 22, 1992
    Date of Patent: March 1, 1994
    Assignee: Karl-H. Sengewald GmbH & Co. KG
    Inventor: Karl-Heinz Sengewald
  • Patent number: 5269423
    Abstract: An apparatus for dispensing large thermoplastic bags utilizing a relatively compact dispensing container. The preferred embodiment of the present invention as implemented teaches a system for dispensing bags, wherein the container is configured to dispense a laterally folded bag stack, reducing the length of the container. The present invention provides a compact, manageable, and more convenient system for dispensing compact bags and the like, resulting in overall cost and time savings. The container of the present invention has formed therein a removable dispenser door, configured for providing convenient access to the bags, while encouraging communication of the bag being dispensed with the container in such a matter as to open the bag during the dispensing operation.
    Type: Grant
    Filed: August 7, 1992
    Date of Patent: December 14, 1993
    Assignee: Advance PolyBag, Inc.
    Inventor: Tai Nguyen
  • Patent number: 5269605
    Abstract: A bag and system for dispensing configured to minimize the probability of stress fractures in the dispensed bag, and tearing associated therewith, while providing a system which leaves no "throw away" product on the rack after dispensing a bag stack, as the present system has no central tear-off tab, thereby providing a more environmentally attractive alternative to other, prior art systems. Further, the present system teaches the utilization of reinforced, radially configured handle suppose cuts to provide an opening for allowing the passage of a horizontal handle support member therethrough, the support cuts further configured to provide a medial curved area situated to allow the outer edge of the cut to "ride" upon the handle support member, allowing maximum opening of the bag mouth for easier loading, and easier placement of the bag pack upon the rack.
    Type: Grant
    Filed: January 8, 1993
    Date of Patent: December 14, 1993
    Assignee: Advance Poly Bag, Inc.
    Inventor: Tai H. Nguyen
  • Patent number: 5248040
    Abstract: In a packet containing a plurality of dual tab merchandising bags, each bag includes a front panel, a rear panel, each side of said bag between the front and rear panels including, a front gusset folded from the front panel, a rear gusset folded from the rear panel, the front and rear gussets joined at a common gusset fold to form an endless tube of bag material around the periphery of said bag. The bags are sealed and severed at the bottom and open and severed at the top, and collapsed and folded one on another so that said gusset sides are folded upon themselves and collapsed under and between the bag front and rear panels. Handle holes are provided centrally of said front and rear panels adjacent said open top of the bag. Tabs are adjacent the sides of the bags at the top of the bag, the tabs having a first portion overlying the gussets and a second portion overlying the central portion of the bag between the gussets, these tabs fused together to form said packet of bags.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: September 28, 1993
    Assignee: Polytec Packaging
    Inventors: Robert B. DeMatteis, Ralph E. Schlender
  • 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: 5205435
    Abstract: A method and means for dispensing plastic T-shirt type shopping bags which are in several different packs, each pack having bags of the same size, but different packs having bags of different sizes, the means comprising a rack having a supported transverse bar behind and below which are provided, for example, three downwardly extending hooking elements spaced from each other and centrally aligned with the bar. The bags of the smallest size are hooked over the uppermost hooking element by their central detachable upper edge closures, and brought up and draped over the mounting plate in reverse position. The bags of the next larger size are hooked over the next lower hooking element and brought up over the mounting plate and draped over the smallest bags. Similarly, the bags of the next larger size bag pack are hooked on the next lower hooking element and draped in reverse position over the second pack of bags.
    Type: Grant
    Filed: April 21, 1992
    Date of Patent: April 27, 1993
    Assignee: The Advantage Group, Inc.
    Inventor: Mark E. Daniels
  • 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: 5184728
    Abstract: In the bag pack disclosed herein, a stack of T-shirt type plastic film bags are held in a paperboard cartridge which is folded to provide front and back panels bridged at the top. The back panel has a cutout tongue which is folded forward under tearaway strips linking the top ends of the bag handle portions. The tongue retains the tearaway strips in the cartridge as individual bags are torn downwardly from the pack.
    Type: Grant
    Filed: December 20, 1991
    Date of Patent: February 9, 1993
    Assignee: BPI Environmental, Inc.
    Inventor: Richard M. Wile
  • Patent number: 5183158
    Abstract: A pack of grocery sacks has releasable adhesive regions between contacting walls of adjacent sacks in order to insure the substantial opening of a following sack when a lead sack is removed from a rack supporting the pack.
    Type: Grant
    Filed: July 17, 1992
    Date of Patent: February 2, 1993
    Assignee: Mobil Oil Corporation
    Inventors: Dana M. Boyd, William J. Randolph, Jr.
  • Patent number: 5182895
    Abstract: A system and method for shopping are described which includes a lightweight, compact carrier, made of nylon or fabric material, designed to carry a set of reusable shopping bags. The set of shopping bags comprise a plurality of bag structures made of either nylon, fabric or paper material. The bag structures are folded into a compact shape which are then placed on one edge and stacked horizontally in a side by side manner inside the carrier. The entire bottom surface or a band having an identifying color is printed on the bottom surface of each bag structure which identifies the size of the bag structure. During use, the bag structures are folded and stacked inside the carrier so that a portion of the colored bottom surface or colored band on each bag structure is visual when each bag structure is stored inside the carrier which enables the user to identify and select the correct bag structure from the set of shopping bags.
    Type: Grant
    Filed: April 2, 1992
    Date of Patent: February 2, 1993
    Inventor: Nicolas R. Lugo
  • Patent number: RE34392
    Abstract: A dispensing system for a package of a continuous, severable sheet material comprising a number of individual severable members, such as plastic bags, separated by transverse pre-weakened regions, such as perforations, is composed of a storage container holding the package and a dispensing device. The dispensing device is separate from and is located at a location remote from the storage container. The continuous severable sheet material is conducted to the dispensing device and is threaded therethrough until the pre-weakened separating two consecutive members emerges through the exit of the device. A sufficient force is then applied to the continuous, severable sheet material to separate the two consecutive members from each other at the pre-weakened regions.
    Type: Grant
    Filed: July 19, 1991
    Date of Patent: September 28, 1993
    Assignee: Mobil Oil Corporation
    Inventor: Gordon L. Benoit
  • Patent number: RE35207
    Abstract: A method and means for dispensing plastic T-shirt type shopping bags which are in several different packs, each pack having bags of the same size, but different packs having bags of different sizes, the means comprising a rack having a supported transverse bar behind and below which are provided, for example, three downwardly extending hooking elements spaced from each other and centrally aligned with the bar. The bags of the smallest size are hooked over the uppermost hooking element by their central detachable upper edge closures, and brought up and draped over the mounting plate in reverse position. The bags of the next larger size are hooked over the next lower hooking element and brought up over the mounting plate and draped over the smallest bags. Similarly, the bags of the next larger size bag pack are hooked on the next lower hooking element and draped in reverse position over the second pack of bags.
    Type: Grant
    Filed: October 20, 1994
    Date of Patent: April 16, 1996
    Assignee: The Avantage Group, Inc.
    Inventor: Mark E. Daniels