Patents Assigned to Alpla-Werke Alwin Lehner GmbH & Co.KG
  • Patent number: 11975474
    Abstract: A blow molding tool (1) for a blow molding machine (1). The blow molding tool (1) comprises at least one first blow mold half (2) and one second blow mold half (3). The first blow mold half (2) has a baseplate (4) and a molding body (5). At least one mold cavity (6) with an inner wall (51) is arranged in the molding body (5). At least one region (511) of the inner wall (51) of the mold cavity (6) comprises, in the associated section of the molding body (5), separate temperature control channels (54) for controlling the temperature of the region (54).
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: May 7, 2024
    Assignee: ALPLA Werke Alwin Lehner GmbH & Co. KG
    Inventors: Johann Künz, Thomas Bohle, Andre Eyrich
  • Patent number: 11912458
    Abstract: A plastic container manufactured from a preform with a mass share of at least 80% polyester and possibly an additive from the group consisting of dyes, fillers, catalysers, additives and lubricative additives. The plastic container comprises a container neck and a container shoulder which connects with the container neck and merges into a container body closed by a container base. The container shoulder, the container base and the container body are exclusively reshaped by a 2-stage stretch blow moulding method. The polyester is a copolyester and comprises groups which originate from the monomers cyclohexanedimethanol (CHDM) and/or monoethylene glycol (MEG), terephthalic acid (TPA) or its derivatives and isophthalic acid (IPA) or its derivatives. At least a part-region of the container body and/or of the container shoulder comprises a sharp edge with a radius of less than 0.5 mm. A method of manufacturing the plastic container is also described.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: February 27, 2024
    Assignee: ALPLA Werke Alwin Lehner GmbH & Co. KG
    Inventors: Robert Siegl, Christian Zmölnig
  • Publication number: 20240059003
    Abstract: A mold body (10) for a blow mold (1). The mold body (10) has a bottom region (14), a shoulder region (13), a central region (15) and a separating plane (12). At least one mold cavity (11) has an inner wall (111) situated in the mold body (10). At least one temperature control channel (30) is arranged in the mold body (10). The at least one temperature control channel (30) is situated and/or positioned in the mold body (10) in such a way as to remove more heat from or supply more heat to a first region (112) of the inner wall (111) than a second region (113) of the inner wall (111) that is adjacent to the first region (112).
    Type: Application
    Filed: December 23, 2021
    Publication date: February 22, 2024
    Applicant: Alpla Werke Alwin Lehner GmbH & Co., KG
    Inventors: Martin OTTOWITZ, Daniel PIELMEIER
  • Patent number: 11897641
    Abstract: The present disclosure relates to an aerosol container made of plastic, the container having a neck, the opening of which is closeable in a pressure-tight manner by a valve unit that can be actuated by a pushbutton, the container being Tillable with a liquid or gaseous propellant and a liquid to be sprayed. The aerosol container can be an injection cast preform with an elongated tubular preform body. The preform body is closed by a dome-shaped convex preform base, beyond which an integrally formed stand region projects in an axial direction. The preform body adjoins the opening of the neck at the opposite axial longitudinal ends of the preform body.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: February 13, 2024
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO.KG
    Inventor: Robert Siegl
  • Patent number: 11873150
    Abstract: An exemplary storage and transport container as provided can be easily produced, transported and mounted. The storage and transport containers can be designed and configured in such a way that electrostatic charging of the plastic receptacles that are stored therein is prevented as much as possible. The storage and transport container can also be reusable multiple times.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: January 16, 2024
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Jürgen Riedmann
  • Patent number: 11794398
    Abstract: A method for producing a blow molded plastic bottle starting from a preform comprises providing a preform with a specific wall thickness distribution and a blow mold are provided, the cavity of the mold having at least one channel at the locations of the plastic bottle that are to be strengthened. Subsequently, the preform is heated in such a way that the portion of the preform that correlates with the channel of the cavity is thinned to a lesser extent during the stretching and/or blow, and an accumulation of plastics material is brought about in the channel during the main blow molding operation. A plastic container produced by this process has strengthening elements formed as at least one outwardly protruding bead of material and have a wall thickness that is at least 30%, greater than the wall thickness of a portion of the wall adjacent to the bead of material.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: October 24, 2023
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Robert Siegl
  • Patent number: 11794378
    Abstract: Presented and described is a method for reclaiming thermoplastic materials intended for recycling, such as, for example, polyethylene terephthalate (PET), in the form of flakes. According to the invention, in a first step, the flakes are exposed to an oxidative fluid and heat until contaminated flakes are modified such that, in a second step, they are separated from the remaining flakes as a result of this modification.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: October 24, 2023
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Robert Siegl
  • Patent number: 11772105
    Abstract: A spray attachment for bringing out fluid substances in the manner of a jet includes a cap with an annularly peripheral, closed skirt with a wall, on whose inner side or outer side first fastener is integrally formed. The first fastener can engage a corresponding second fastener of an outer wall or inner wall of a container neck. The skirt at a longitudinal end is closed off by a cover surface having a recess. A receiving part for receiving an insert part is arranged in the region of the recess, and includes a conical receiving surface for receiving a conical peripheral surface of the insert part. The conical receiving service and the conical peripheral surface delimit at least one through-channel for fluid substance, through which the fluid substance can be brought out.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: October 3, 2023
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventors: Florian Müller, Klemens Bösch
  • Patent number: 11717990
    Abstract: A preform for a stretch-blow-molded plastic container includes an elongated, tube-like preform body. An outer wall and an inner wall delimit a bottom thickness (b). An outer wall and an inner wall delimit a wall thickness (w). An inner surface and an outer surface (E1) curved in three-dimensionally convex manners are spaced apart such that a distance from their respective apex (S, S?) to the preform body continuously increases. Extensions of the outer wall of the preform bottom along the outer three-dimensionally curved surface (E1), and of the inner wall of the preform bottom along the inner three-dimensionally curved surface (E2) are configured to be interrupted by set-backs area outside of their respective apex (S, S?) thereof.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: August 8, 2023
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Christian Dornbach
  • Patent number: 11708473
    Abstract: The invention relates to a method in which a polyester melt containing one or more polyesters is produced, the polyester melt being foamed by a blowing agent and a foamed granulate is produced from the foamed polyester melt. The intrinsic viscosity (IV) of the polyester melt is reduced by the blowing agent about at least 0.05 dl/g, measured according to ASTM D4603, and the IV of the foamed granulate is then increased by means of a solid phase polycondensation (SSP).
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: July 25, 2023
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventors: Robert Siegl, Andreas Weber
  • Patent number: 11642814
    Abstract: The invention relates to a preform for producing a plastic container in a blow moulding method, comprising an elongated, preform body, which is formed so as to be closed at the one longitudinal end thereof and, at the other longitudinal end thereof, has a neck section having a pouring opening. The preform is produced from recycled PET and aliphatic furanoate, wherein the recycled PET has a maximum of 2.5 wt % of isophthalic acid and diethylene glycol, wherein the proportion of isophthalic acid is no higher than 2.0 wt %, and the proportion of diethylene glycol is no higher than 2.0 wt %, wherein all the percentages by weight are based on the total weight of the preform. Turbidity of the preform, measured in accordance with ASTM D I 003-00, is less than 5%, as a result of the admixture of the aliphatic furanoate.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: May 9, 2023
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Robert Siegl
  • Patent number: 11633889
    Abstract: An assembly appliance for mould tool parts of an injection moulding tool is disclosed, the assembly appliance including an assembly plate configured for insertion into an injection moulding machine and including a tool carrier for receiving first mould tool parts to be assembled; and an assembly frame having a guide system for a translatory displacement of the assembly plate along a longitudinal extension of the assembly frame, and a support device for stationary support of a second mould tool part which corresponds to at least one of the first mould tool parts.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: April 25, 2023
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Markus Schuster
  • Patent number: 11504896
    Abstract: An injection-molded preform is disclosed for production of a plastic container by a blow-molding method with an elongated, tube-like body, which is closed on its one longitudinal end and has a neck section that is provided with a pour opening on its other longitudinal end, which neck section includes an injection molded connection to an injection molded closure part, wherein the closure part includes: a flip-top closure and an annular section with an inner wall, which inner wall rests directly on an outer surface of the neck section and completely encloses an annular area of the outer surface of the neck section.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: November 22, 2022
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventors: Florian Müller, Oliver Unterlechner
  • Patent number: 11186403
    Abstract: A stretch-blown plastic container, includes a container body which encloses a filling volume with a container bottom; a container neck which adjoins an opposite end of the container body, having a container opening and an integrated handle region, the handle region being hollow and joined to the filling volume which is enclosed by the container body; and between the handle region and the container body, a through opening recessed and bordered over its entire periphery by wall parts of the container body and of the handle region which have been welded to one another.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: November 30, 2021
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Adem Demir
  • Patent number: 11111049
    Abstract: An extrusion blow-molded plastic container, for example, a plastic bottle, is described which has a container body having a longitudinal axis, a longitudinal end sealed by a container bottom, another longitudinal end adjoining a container neck provided with a pour opening, and a container shoulder. The container body has at least one deformable section which is made flat and which extends over a large part of an axial length of the container body and in the peripheral direction. The deformable section which has been made flat has two longitudinal sides which run essentially in the axial direction and which border regions of the container body which have a greater stiffness than the deformable section.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: September 7, 2021
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Oliver Kies
  • Publication number: 20210245416
    Abstract: A stretch blow moulding method for manufacturing a plastic container, wherein a preform, configured in an essentially tubular manner with a neck part, is inserted into a mould cavity of a blow moulding tool of a stretch blow moulding machine. The preform is stretched with a stretching mandrel and is inflated in accordance with the mould cavity by overpressure with a fluid. A dome connects onto a container section which is provided with at least one structure which projects or recedes with respect to the container wall and is separated away. With the stretch blow moulding method, at least one section of the structure is axially compressed to a settable extent within the mould cavity before the plastic container is removed from the mould.
    Type: Application
    Filed: January 25, 2021
    Publication date: August 12, 2021
    Applicant: ALPLA Werke Alwin Lehner GmbH & Co. KG
    Inventor: Adem DEMIR
  • Patent number: 11046481
    Abstract: A stand sleeve for an inner-pressure-resistant plastic container, wherein the stand sleeve includes a base part having a stand surface, and a jacket which is closed in the peripheral direction, the base part and the jacket being configured as a single molded piece, and the jacket being configured for a non-positive connection to an outer wall in proximity of the base of an inner-pressure-resistant plastic container.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: June 29, 2021
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Robert Siegl
  • Patent number: 11020886
    Abstract: A method is disclosed for producing thin-walled small plastic parts having an average wall thickness of less than about 1.5 mm, wherein the small plastic parts are produced in a plastic injection-molding method from polyethylene furanoate (PEF) having a viscosity of, for example, 0.3 dl/g to 0.7 dl/g, for example, preferably less than e.g., 0.6 dl/g, measured according to a measurement method as per ASTM D4603, which polyethylene furanoate has an exemplary water content of less than 100 ppm in the plastic injection process.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: June 1, 2021
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Robert Siegl
  • Patent number: 11014280
    Abstract: A preform is disclosed for producing a plastic container. The production of the preform as well as a plastic container that is produced from the preform and its production are also disclosed.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: May 25, 2021
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Robert Siegl
  • Publication number: 20210130079
    Abstract: A plastic pressure container has an essentially cylindrical container body with an opening closable in a pressure-tight manner by a valve attachment for dispensing a filling product. An interior plunger is arranged in a longitudinally displaceable manner along a longitudinal axis to subdivide the container body into a receiving chamber adjacent to the opening for the filling product and into a separated reservoir in a pressure tight manner, for a pressure medium. The plunger includes two circumferential sealing lips separated in the axial direction. An upper sealing lip extends into the receiving chamber and a lower sealing lip extends into the reservoir, and these are pressed in a fluid-tight manner onto an inner wall which delimits the interior of the container body, by pressure in the receiving chamber and reservoir.
    Type: Application
    Filed: January 8, 2021
    Publication date: May 6, 2021
    Applicant: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventors: Thomas OLBERDING, Florian MÜLLER, Tim SILBERMANN, Markus SALZMANN, Oliver UNTERLECHNER