Patents Assigned to Alpla-Werke Alwin Lehner GmbH & Co.KG
  • Patent number: 10112744
    Abstract: A wide-necked extrusion blow-molded plastic container for bulk material as disclosed for a closure cap configured for mounting on a container neck of the wide-necked plastic container opening. A casing of the closure cap configured for connecting to an outside wall of a body of the wide-necked plastic container. A number of locking projections distributed over a periphery of the container neck which project from an outside wall of the container neck, and which are arranged on an outside wall of the container neck, the closure cap being equipped on an inside wall of its casing with corresponding locking recesses, which during mounting of the closure cap on the container neck engage with the locking projections to lock with one another in a non-detachable manner, the interacting locking projections and locking recesses being inaccessible in the mounted closure cap.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: October 30, 2018
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventors: Johann Kuenz, Christa Westhofen, Israel Garcia Granados
  • Publication number: 20180304495
    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: Application
    Filed: October 5, 2016
    Publication date: October 25, 2018
    Applicant: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Christian DORNBACH
  • Patent number: 10093472
    Abstract: A stretch blow-molded plastic container, including a container body, one longitudinal end of which is closed by a container bottom and to whose other longitudinal end is connected a shoulder section; and a container neck, which connects to the shoulder section, the shoulder section having at least two hinge-like areas that run in a circumferential direction, and which areas are arranged at a distance (a) from one another and in each case have a wall thickness (v, w) that is reduced compared to the adjoining areas, the stretch blow-molded plastic container having a total stretching ratio of greater than 11 for a longitudinal stretching ratio of 2.5 to 3.5.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: October 9, 2018
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Robert Siegl
  • Publication number: 20180229417
    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: Application
    Filed: April 11, 2018
    Publication date: August 16, 2018
    Applicant: ALPLA Werke Alwin Lehner GmbH & Co. KG
    Inventors: Florian Müller, Oliver Unterlechner
  • Patent number: 10040228
    Abstract: An injection-molding device for producing at least one tube head having a tube shoulder and a neck formed thereon has a press-out opening comprising a mold that defines a mold cavity and a nozzle that interacts with the mold. The nozzle has a valve needle that can be moved in the nozzle body. The valve needle is surrounded by a first flow channel, through which a first material component can be pressed out. The opening of the nozzle is closed by the valve needle head in a retracted position of the valve needle and released by the valve needle head in an advanced position of the valve needle In the advanced position of the valve needle, an annular outlet opening is formed, which establishes a fluid connection into the mold cavity together with an annular gap of the mold serving as a gate.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: August 7, 2018
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Christian Krammer
  • Patent number: 10011064
    Abstract: Method for producing a plastic bottle, and preform and blowing mold suited therefore are disclosed. An exemplary process can produce a plastic bottle, for example, a PET bottle. Such a bottle can be produced from a preform which has a body which is closed on one side, which is connected to a neck section with a pour opening, in which the preform which has been produced in a plastic injection process or an extrusion process is placed in the mold cavity of a blow mold and inflated using the blow nozzle by overpressure according to the mold cavity. Sealing can take place between the blow nozzle and the preform within the preform.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: July 3, 2018
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventors: Alwin Lehner, Johann Künz, Markus Düringer
  • Patent number: 9957077
    Abstract: A plastic container for storing liquid under a low overpressure having a container body, to whose one longitudinal end a container neck is connected, which neck has a pour opening. A bottom section has a container bottom and an edge area pulled up on the sides and that turns into the container body, is connected to the other longitudinal end of the container body. The container bottom has a curved concave section, whose periphery is connected via an axially projecting, graduated transition area to a platform that runs into the edge area pulled up on the sides. The platform and at least one partial area of the graduated transition area are interrupted by a first number of grooves. In the concave section, a second number of panel-like projections are made, which essentially extend between the graduated transition area and the longitudinal axis and end before the graduated transition area.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: May 1, 2018
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Christian Dornbach
  • Publication number: 20170369215
    Abstract: A metering and pouring device is disclosed for flowable substances. A container, such as a plastic container, also is provided with such a metering and pouring device.
    Type: Application
    Filed: September 8, 2017
    Publication date: December 28, 2017
    Applicant: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventors: Thomas HLAVACEK, Oliver HOCH
  • Publication number: 20170334120
    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: Application
    Filed: August 4, 2017
    Publication date: November 23, 2017
    Applicant: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Robert SIEGL
  • Publication number: 20170334108
    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: Application
    Filed: August 7, 2017
    Publication date: November 23, 2017
    Applicant: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Robert SIEGL
  • Publication number: 20170233161
    Abstract: A stretch blow-molded plastic container, including a container body, one longitudinal end of which is closed by a container bottom and to whose other longitudinal end is connected a shoulder section; and a container neck, which connects to the shoulder section, the shoulder section having at least two hinge-like areas that run in a circumferential direction, and which areas are arranged at a distance (a) from one another and in each case have a wall thickness (v, w) that is reduced compared to the adjoining areas, the stretch blow-molded plastic container having a total stretching ratio of greater than 11 for a longitudinal stretching ratio of 2.5 to 3.5.
    Type: Application
    Filed: May 1, 2017
    Publication date: August 17, 2017
    Applicant: ALPLA Werke Alwin Lehner GmbH & Co. KG
    Inventor: Robert SIEGL
  • Publication number: 20170066549
    Abstract: An extrusion-blow-molded plastic container has a container body closed with a bottom and a neck with a pour opening. An inside wall of the container neck has at least one calibrated structuring, extending at least in places over a periphery of the inside wall. The calibrated structuring is limited in the direction of the container body by a material accumulation shaped as a collar extending at least partially along the periphery of the inside wall and essentially crosswise to a center axis of the neck.
    Type: Application
    Filed: May 27, 2015
    Publication date: March 9, 2017
    Applicant: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventors: Johann KUENZ, Herbert WOHLGENANNT
  • Patent number: 9586713
    Abstract: A preform is disclosed for the production of plastic containers, for example plastic bottles, in a stretch-blow-molding method. The preform can include an elongated preform body having a closed longitudinal end and which connects on an opposite longitudinal end to a neck section having a pour opening, the neck section having an outside wall with a fastening means. A rotating flange at a transition from the preform body to the neck section, wherein at least a portion of the rotating flange is annular and radially extends above an outside wall of the preform body. A peripheral annular groove can extend obliquely from a base of the annular groove to the outside wall of the neck section forming a circumferential inner collar, and wherein the inner collar the direction of the preform body, extends axially above the annular groove and extends into an inside wall of the preform body.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: March 7, 2017
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Robert Siegl
  • Patent number: 9517601
    Abstract: A method is disclosed for providing dimensional accuracy of a pour opening in or on a plastic container produced by extrusion-blow-molding. The method can include inserting a section of a plastic hose, extruded in one or more layers through an extrusion nozzle, into a mold cavity of a blow mold tool; and inflating the plastic hose by a calibrating blow pin according to a shape of the mold cavity, whereby at least one pour opening of the plastic container is determined with respect to its inside diameter and its inside contour to form a completed inflated plastic container, and wherein the calibrating blow pin is axially inserted into the plastic hose section after a head plate of the blow mold tool has been closed.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: December 13, 2016
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Johann Künz
  • Patent number: 9456677
    Abstract: A plastic container for a roll-on deodorant is described, which roll-on deodorant has a receptacle and a roll cage for the captive, rotatable holding of an applicator ball. The roll cage can be made integral with the receptacle. The plastic container can be produced in an extrusion-blow-molding method from a tube that is for example extruded continuously.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: October 4, 2016
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Johann Künz
  • Patent number: 9423284
    Abstract: An exemplary method and apparatus for function testing of plastic containers which have been produced in an extrusion blow molding method and include an ascending tube. The apparatus being configured to determine the flow rate of a fluid medium through the ascending tube. The determined flow rate is compared to a set flow rate range, and when upper and lower boundaries for the flow rate are not reached or are exceeded, the container is excluded from further processing and removed from the process.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: August 23, 2016
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Gerold Spiegel
  • Publication number: 20160167839
    Abstract: A wide-necked extrusion blow-molded plastic container for bulk material as disclosed for a closure cap configured for mounting on a container neck of the wide-necked plastic container opening. A casing of the closure cap configured for connecting to an outside wall of a body of the wide-necked plastic container. A number of locking projections distributed over a periphery of the container neck which project from an outside wall of the container neck, and which are arranged on an outside wall of the container neck, the closure cap being equipped on an inside wall of its casing with corresponding locking recesses, which during mounting of the closure cap on the container neck engage with the locking projections to lock with one another in a non-detachable manner, the interacting locking projections and locking recesses being inaccessible in the mounted closure cap.
    Type: Application
    Filed: February 22, 2016
    Publication date: June 16, 2016
    Applicant: Alpla Werke Alwin Lehner GmbH & Co. KG
    Inventors: Johann KUENZ, Christa WESTHOFEN, Israel GARCIA GRANADOS
  • Publication number: 20160144551
    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: Application
    Filed: January 30, 2014
    Publication date: May 26, 2016
    Applicant: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Robert Siegl
  • Publication number: 20160046059
    Abstract: The invention relates to an extrusion blow molded tube, which is filled or can be filled by way of its rear end, and the body, shoulder and neck of which are produced in one piece by extrusion blow molding. The tube has an LLDPE-rich layer with an LLDPE content of 50 to 95% by weight, and the average wall thickness of the tube in the region of the body is 0.3 to 0.85 millimeters.
    Type: Application
    Filed: March 20, 2014
    Publication date: February 18, 2016
    Applicant: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Johann Kunz
  • Patent number: 9233771
    Abstract: A method for producing a preform and a preform produced by extrusion blow molding for producing plastic containers in a stretch blow molding process and having a neck portion and a body portion closed by a preform base, which portions are separated from each other by a supporting ring protruding from the outer wall. The preform has a body portion of which the outside diameter narrows from the supporting ring in the direction of the preform base.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: January 12, 2016
    Assignee: ALPLA WERKE ALWIN LEHNER GMBH & CO. KG
    Inventor: Robert Siegl