Patents Assigned to AB Akerlund & Rausing
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Patent number: 5165801Abstract: A package is disclosed comprising two members formed together. One of the members is a closed member of cardboard or a corresponding material, and the other member is flexible. The rigidifying member has a closed peripheral portion, and a completely covering bottom which is continuous with the peripheral portion. The flexible member is fastened along its entire periphery at sufficient points on the outer member such that the package has a stable shape.Type: GrantFiled: October 28, 1991Date of Patent: November 24, 1992Assignee: AB Akerlund & RausingInventors: Lennart A. Stenstrom, Lennart Wahlstrom
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Patent number: 5143775Abstract: A customized shock-absorbing wrapper band comprising at least two rows of gas-filled cushions of arbitrary shape and size formed by joining two flexible webs, at least one of which is thermoformable, and pressurizing the thermoformed recesses when sealing such by the other web in a sealing station of a thermoforming, roller operated machine.Type: GrantFiled: May 22, 1989Date of Patent: September 1, 1992Assignees: AB Akerlund & Rausing, Electrolux Major and Floor Care Appliances AktiebolagInventors: Roine Olsson, Bo Hellgren
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Patent number: 5133473Abstract: Plastic container closures which are preferably injection molded through a centrally placed ingot are disclosed. The closures include a cover panel with a circumferential rim and a pouring opening which corresponds to only a portion of the area of the cover panel. The closure also includes an integral grip and a tearing denotation provided by a reduced thickness groove in the cover panel around the periphery of the portion of the cover panel which is to be removed and in which that groove extends from a point in the proximity of the circumferential rim towards a point displaced from the center of the cover panel at a location beyond the center with respect to the first point, and in which the reduced thickness groove is interrupted to provide a hinge for the portion of the cover panel to be removed subsequent to opening.Type: GrantFiled: August 14, 1991Date of Patent: July 28, 1992Assignee: AB Akerlund & RausingInventors: Lars-Erik Piltz, Patrick Duvander
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Patent number: 5114507Abstract: A cover device for a packaging container usable as a reclosable closure, comprising an outer layer provided with an easy opening device which has a grip and at least a tearing denotation extending circumferentially around the cover device. Additionally, the inner layer is attached to the outer layer at least at both sides of said tearing denotation.The inner layer is covered only partially by the outer layer, leaving a central portion of the inner layer exposed to the environment.A grip in the shape of a pull-ring is arranged in said central portion, and a strip-shaped connection portion connects the ring to a relatively narrow strip-shaped part of the outer layer, said part being removable together with the inner layer along a line defined by said circumferential tearing denotation. Of course, such tearing and removing facility necessitates that the tearing strength of the inner layer is lower than the weld strength and that the tearing denotation has a proper strength and is well-defined.Type: GrantFiled: February 6, 1991Date of Patent: May 19, 1992Assignee: AB Akerlund & RausingInventors: Lars-Erik Piltz, Stina Stenberg
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Patent number: 5039564Abstract: A tearing strip of the delaminating type intended for attachment to opposite insides of a package.The strip has such a layer structure that, relative the inside of the package, it has a melted-together seal while internally the strip has layers which are not fully melted together.The strip comprises a central, strong layer and a first and second layer arrangement.The first layer arrangement has a well reproducable, high seal strength relative the central layer. However, the second layer arrangement is "peelable" relative the first layer arrangements or more likely internally between two layers. In contrary the second layer arrangement has a well reproducable, high sealing strength relative the inside of the package.Type: GrantFiled: July 5, 1989Date of Patent: August 13, 1991Assignee: AB Akerlund & RausingInventor: Bengt Persson
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Patent number: 4961511Abstract: A closure or closure element manufactured by injection moulding and provided with an easy opening device having a pull-ring and a tearing strip emerging therefrom.The tearing strip forms and defines a region which is concave. A recess is arranged cross-wise in a major part of an inlet to the concave region. The recess can be formed by the injected molten material having been diverted and delayed when entering the concave region. The delay enables the concave region and the portion of the tearing strip defining it to be formed substantially simultaneously. The orientation of the material at the junction of the tearing strip and the concave region is also diverted.Type: GrantFiled: February 10, 1989Date of Patent: October 9, 1990Assignee: AB Akerlund & RausingInventor: Lars-Erik Piltz
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Patent number: 4944426Abstract: An easy opening arrangement for a closure of a packaging container. The easy opening arrangement has a grip, preferably shaped as a ring, and from said grip there emanates tearing denotations in a removable part of the closure.Via a first connection portion said grip is connected to said emanating tearing denotations. The arrangement includes at least one further connection portion to the closure part. Said so called further connection portion maintains a substantial portion of the grip at a certain distance from the closure part, such that said substantial portion is easy grippable.Type: GrantFiled: February 10, 1989Date of Patent: July 31, 1990Assignee: AB Akerlund & RausingInventor: Lars-Erik Piltz
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Patent number: 4928622Abstract: A machine for applying adhesive on one side of an elongate sheet material, and comprising an adhesive containing trough (19), an adhesive application roller (20) and a driven pressure roller (21). The sheet material (15) is being passed through the nip between said rollers and the width of the rollers surpasses the width of the sheet material. The contact surface of the pressure roller (21) upon the sheet (15), consists of an endless belt (23). The belt (23) runs via at least one guide roller (24) through a trough (25), containing rinsing fluid (25). In said trough the belt (23) runs past at least one further guide roller (27), and past a brush roller (29) which is mounted in the trough (25), adjacent the outer side of the endless belt loop (23). The brush roller is being driven in counter rotation to the direction of movement of the belt.Type: GrantFiled: January 27, 1989Date of Patent: May 29, 1990Assignee: AB Akerlund & RausingInventors: Lennart Larsson, Arne Andersson
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Patent number: 4921121Abstract: An end closure for a packaging container where the closure is of the basic type having a so called one step opening arrangement, i.e. where an outer layer and an inner layer are removed in unison or simultaneously by shaping the tearing denotations in a proper pattern.In order to provide an opening procedure giving less splash the outer layer is divided into a central part having a grip for individually removing the central part from the inner layer laying under the outer layer without being connected thereto.A circumferentially extending region all around the closure, is defined by said circumferential tearing denotation and the central part and is removable together with the inner layer inside the tearing denotation.Type: GrantFiled: February 10, 1989Date of Patent: May 1, 1990Assignee: AB Akerlund & RausingInventors: Patrik Duvander, Kent Johansson
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Patent number: 4917259Abstract: Through a centrally placed ingot there is formed an injection moulded cover or end closure for a packaging container comprising at least an outer layer and an easy opening device formed therein, the device having a grip and a tearing denotation starting therefrom. The tearing device includes a first tearing denotation which merges into a circumferential tearing denotation extending inwardly adjacent the periphery of the outer layer and a second tearing denotation spaced from said first tearing denotation and spaced inwardly of said circumferential tearing denotation and extending in a generally spiral shaped path. These tearing denotations, together with a blind groove, define a wide material flow region and several material flow passages through which injected material will flow when exiting the centrally placed ingot.Type: GrantFiled: February 10, 1989Date of Patent: April 17, 1990Assignee: AB Akerlund & RausingInventor: Lars-Erik Piltz
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Patent number: 4913306Abstract: An end closure for a packaging container, where the end closure has a central panel and a circumferential rim for being attached to a wall of a packaging container for placing the panel countersunk in the container.A tearing denotation is arranged in the panel and merges into a further tearing denotation extending the whole way around the panel close to the rim.A low ledge is arranged at the side of the panel opposite to the rim for maintaining an easily flexible material covering the underside of the end closure and at least part of the rim outer side thereof at a non-welding distance at both sides of the tearing denotation, i.e. at such a distance that the temperature and pressure is insufficient for heat sealing or welding of thermoplastics material on the flexible material and/or the panel.Type: GrantFiled: February 10, 1989Date of Patent: April 3, 1990Assignee: AB Akerlund & RausingInventor: Lars-Erik Piltz
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Patent number: 4905263Abstract: A method and a device for inspecting a joint such as the joint at the rim of a container. Radiant energy is directed into a small area of irradiation on the joint and the container rim is moved relative to the radiant energy so that the area of irradiation moves in one direction along the rim. Additionally, the area of irradiation is scanned crosswise to the one direction to move the area of irradiation across the width of the joint. Radiant energy reflected from the area of irradiation is detected. This radiant energy indicates the characteristics of the joint. The characteristics indicated by the radiant energy are compared to predetermined set value characteristics to detect product residue or other defects in the joint.Type: GrantFiled: May 12, 1989Date of Patent: February 27, 1990Assignee: AB Akerlund & RausingInventors: Lennart Larsson, Bo Ullman, H.ang.kan Ohlsson
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Patent number: 4865891Abstract: A surface layer is applied to an elongated, deformable hollow profile. The profile originally has at least one wall portion which is curved as seen in cross section. The profile is advanced to a device for applying the surface layer and pressed so as to deform the curved wall portion into a shape which, as seen in cross section, is substantially straight. The surface layer is applied to this wall portion while it is in the substantially straight shape, and the profile is then at least substantially returned to its original shape.Type: GrantFiled: March 16, 1988Date of Patent: September 12, 1989Assignee: AB Akerlund & RausingInventor: Lennart Larsson
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Patent number: 4856709Abstract: A folding box of cardboard or similar material, comprising a casing having a longitudinal joint and top and bottom end closures and preferably sealing membranes attached to flaps of said end closures. The longitudinal joint of the folding box is formed as an abutting edge joint which at least partially along a substantial length of the total folding box length has an extension which is not parallel to the side edges of the folding box. Especially in that case where sealing membranes exist, the joint extends the whole way out to the free cut edges of each end flap of the top and bottom end closure, respectively, and the cross section of the folding box is covered by a sealing membrane attached against flaps at each end of the folding box. The longitudinal joint is covered by a strip, placed externally or internally or on both sides of the wall. The strip is of a thin material, preferably of a thickness around 20-50 .mu.m and covers the joint at both sides thereof.Type: GrantFiled: November 3, 1987Date of Patent: August 15, 1989Assignee: AB Akerlund & RausingInventors: Owe Axelsson, Harry Holmgren, Heinz Birkenbeul
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Patent number: 4852136Abstract: A method and a device for inspecting a joint such as the joint at the rim of a container. Radiant energy is directed into a small area of irradiation on the joint and the container rim is moved relative to the radiant energy so that the area of irradiation moves in one direction along the rim. Additionally, the area of irradiation is scanned crosswise to the one direction to move the area of irradiation across the width of the joint. Radiant energy reflected from the area of irradiation or transmitted through the area of irradiation is detected. This radiant energy indicates the characteristics of the joint. The characteristics indicated by the radiant energy are compared to predetermined set value characteristics to detect product residue or other defects in the joint.Type: GrantFiled: November 18, 1987Date of Patent: July 25, 1989Assignee: AB Akerlund & RausingInventors: Lennart Larsson, Bo Ullman, H.ang.kan Ohlsson
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Patent number: 4850503Abstract: An easy openable closure device for a packaging container, comprising an outer layer, for instance injection moulded of plastics, and an inner layer possibly comprising several sublayers and such that it gives the closure device a specific characteristics as to welding possibilities, gas barrier and light barrier. A first tearing denotation is arranged in the outer layer and merges into a second tearing denotation under a tangentially acute angle, said second denotation extending circumferentially around the closure device. At both sides of the circumferential tearing denotation, the inner layer is sealed to or connected to the outer layer. In the outer layer there is arranged an element having a portion for penetrating the first tearing denotation in the outer layer inside the said sealing region. The strength of the second tearing denotation is lower than the sealing strength between the layers and the latter strength is higher than the tearing strength of the inner layer.Type: GrantFiled: April 29, 1988Date of Patent: July 25, 1989Assignee: AB Akerlund & RausingInventor: Lennart Larsson
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Patent number: 4848594Abstract: A device for contamination free and micro-organism penetration preventing, repeated access to a packaging container containing a pourable filling goods, for instance a sterile fluid or powder. A discharge portion forms a sluice space and is connectable into communication with a packaging container of a flexible material or a so called squeezable type container. At each end of the sluice chamber there are arranged closeable and openable valves or discharge openings. Between said valves or discharge openings there is said sluice chamber, which is of such a length that turbulence phenomena at the external valve do not propagate to the interior of the sluice.Type: GrantFiled: February 4, 1988Date of Patent: July 18, 1989Assignee: AB Akerlund & RausingInventors: Carl-Axel Bjorkengren, Magnus Bergstrom, Per-Stefan Gersbro
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Patent number: 4813208Abstract: A method and a device for scrap-free manufacture of coated profiles and thermoformed containers.A hollow pipe having a cross-section suitable for the desired profile is extruded.The extruded hollow profile is cut longitudinally.Thereafter the profile is planar laminated by a web formed material having desired characteristics.The cut, laminated profile thereafter is formed into the original shape thereof, or another suitable shape, and is formed into container casings.When thermoforming containers, a hollow profile is extruded from a thermoformable material in an extruder, this hollow profile is cut, in one or several longitudinal cuts. In web or roller form such cut profile is supplied to a so called scrap-free thermoforming machinery, where the thermoformed containers are manufactured.Type: GrantFiled: May 28, 1987Date of Patent: March 21, 1989Assignee: AB Akerlund & RausingInventors: Lars E. Piltz, Lennart Larsson
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Patent number: 4811855Abstract: A container closure of the so-called spout type comprises a female element and a male element. The female element is attachable to a flexible container wall section, and the male element is attachable to an opposite wall portion, such that a container, for instance a four sided edge sealed pouch of the giant size type, is closable by arranging the female element and the male element in a sealing engagement for forming a closure. An axially operating arrangement for providing relative axial movement between the male and female elements, for instance of the bayonet type is arranged for providing an axial or relative movement of the female and male elements, such that an axial sealing ring will be compressed. The sealing of such ring may be supplemented by the sealing effect obtained by means of the ribs and grooves of the device. As a further specific feature the seal may include bacteria killing material, for instance of the ZEOLIT-type.Type: GrantFiled: May 31, 1988Date of Patent: March 14, 1989Assignee: AB Akerlund & RausingInventors: Magnus Bergstrom, Stefan Gersbro, Jan-Olof Fransson
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Patent number: 4811957Abstract: A device and a method for forming at least a liquid tight joint between two elements. Either or both elements have sealing portions, which in an area intended for abutment of the elements provide said joint when said elements are brought together in the abutment area. The sealing portion is formed as a seal which by being formed by sequential injection moulding technique is molecularly integral with an area directly adjacent to said seal. The injection moulding technique allows a choice of a relatively softer material for the sealing portion and a high degree of design freedom, including designs of high hygiene standards, especially well suited for aseptic or sterile packaging systems.Type: GrantFiled: December 1, 1987Date of Patent: March 14, 1989Assignee: AB Akerlund & RausingInventors: Magnus Bergstrom, Per-Stefan Gersbro, Jan-Olof Fransson