Patents by Inventor Robert Weinmann

Robert Weinmann has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11326631
    Abstract: A method and a system for assembling a screw connection for a predefined operating load. The system includes a detector configured to detect values of at least one influence factor on the screw connection, a calculator configured to determine, based on the operating load, a required pretensioning force of the screw connection, and, based on the determined pretensioning force, to determine an expression of at least one assembly parameter, and an assembler configured to assemble the screw connection in accordance with the determined expression of the assembly parameter.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: May 10, 2022
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Sascha Nagel, Robert Weinmann
  • Patent number: 10876564
    Abstract: A blind rivet nut for connecting two components by means of a screw connection includes a rivet shank. The rivet shank has an internal thread, at the axial first end of which a deformation portion configured to produce the riveted joint is arranged. At the axial second end of the rivet shank there is arranged a rivet head with a contact face that allows an adjacent component face to lie against. The supporting surface has a radial extent which is greater than or equal to 1.5 times and less than or equal to 2 times the radial extent of the rivet shank.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: December 29, 2020
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Thomas Schnaufer, Andreas Beil, Simon Spitzer, Christian Berthold, Robert Weinmann
  • Publication number: 20200256361
    Abstract: A method and a system for assembling a screw connection for a predefined operating load. The system includes a detector configured to detect values of at least one influence factor on the screw connection, a calculator configured to determine, based on the operating load, a required pretensioning force of the screw connection, and, based on the determined pretensioning force, to determine an expression of at least one assembly parameter, and an assembler configured to assemble the screw connection in accordance with the determined expression of the assembly parameter.
    Type: Application
    Filed: May 1, 2020
    Publication date: August 13, 2020
    Inventors: Sascha NAGEL, Robert WEINMANN
  • Publication number: 20190040893
    Abstract: A blind rivet nut for connecting two components by means of a screw connection includes a rivet shank. The rivet shank has an internal thread, at the axial first end of which a deformation portion configured to produce the riveted joint is arranged. At the axial second end of the rivet shank there is arranged a rivet head with a contact face that allows an adjacent component face to lie against. The supporting surface has a radial extent which is greater than or equal to 1.5 times and less than or equal to 2 times the radial extent of the rivet shank.
    Type: Application
    Filed: October 10, 2018
    Publication date: February 7, 2019
    Inventors: Thomas SCHNAUFER, Andreas BEIL, Simon SPITZER, Christian BERTHOLD, Robert WEINMANN
  • Publication number: 20160040703
    Abstract: A blind rivet nut for connecting two components via a screw connection is provided. The blind rivet nut includes a rivet shaft with an internal thread, on the axial first end of which shaft a deformation portion for producing the rivet connection is arranged, wherein a rivet head with a bearing surface for bearing an adjacent component surface is arranged on the axial second end of the rivet shaft. The bearing surface has a radial extent which is designed to be greater than or equal to 1.2 times the radial extent of the rivet shaft.
    Type: Application
    Filed: October 21, 2015
    Publication date: February 11, 2016
    Inventors: Thomas SCHNAUFER, Andreas BEIL, Simon SPITZER, Christian BERTHOLD, Robert WEINMANN
  • Publication number: 20120227242
    Abstract: A method for assembly of injection molding machines of different sizes constructed in modular form at a machine manufacturer and for transport of such modular injection molding machines to an installation site. The mold clamping side and the injection unit side are assembled during final assembly at the installation site of the complete injection molding machine by connecting the mold clamping module with the injection module or with a drive module by way of the standardized upper and lower assembly or coupling interfaces of the mold clamping side and the injection unit side, so as to form a one-piece injection molding machine having a bending-resistant substructure.
    Type: Application
    Filed: May 23, 2012
    Publication date: September 13, 2012
    Applicant: Netstal-Maschinen AG
    Inventors: Placi Wenzin, Daniel Jenny, Robert Weinmann
  • Publication number: 20100071187
    Abstract: The invention relates to a method and a device for installation and removal of the plasticizing screw (1) of a piston or drive end (11) of a screw drive system of an injection molding machine by means of a clamp coupling (10). The screw drive system is designed for a controlled linear and rotary movement of the plasticizing screw (1). The coupling is realized via clamping means which are preferably in the form of mechanical clamp coupling (10), wherein the rotary driving power and the screw return force are transferred via frictional engagement, and the axial injection force is transferred via an end stop. The installation and removal operation is supported by being controlled by the screw drive system. The plasticizing screw (1) can also be coupled or decoupled via a releasable compression connection implemented as a heat-shrinkage connection or as a hydraulic tension system (23), wherein the plasticizing screw (1) is introduced during coupling to the end stop.
    Type: Application
    Filed: December 4, 2007
    Publication date: March 25, 2010
    Applicant: Netstal-Maschinen AG
    Inventors: Robert Weinmann, Placi Wenzin, Marcel Zahner
  • Publication number: 20090291162
    Abstract: The invention relates to a method and an injection-molding machine with modular structure. In the solution proposed, to optimize logistics, in particular transport, the design and the construction of at least the mould-clamping mechanism side (7) and the injection system side (8) of the machine are modular. There are central unitary mounting and coupling interfaces (13 and 14 or 15, 15?, 15?) by way of which a mould-clamping module (1), a system module (16) and a drive module (17) are connected. The three modules can be selected freely from appropriate ranges of mould-clamping modules and system modules and drive modules.
    Type: Application
    Filed: September 12, 2007
    Publication date: November 26, 2009
    Applicant: Netstal-Maschinen AG
    Inventors: Placi Wenzin, Daniel Jenny, Robert Weinmann
  • Patent number: 7250130
    Abstract: The invention relates to a manufacturing inspection method for the cyclic production of injection-molded parts in multi-cavity casting molds involving a row-by-row monitoring of the injection-molded parts after they are removed from the casting molds, said monitoring being effected by sensors, particularly, photoelectric barriers. The invention also relates to an inspection device used during the cyclic production of injection-molded parts in multi-cavity casting molds involving a row-by-row monitoring of the injection-molded parts after they are removed from the casting molds, said monitoring being effected by sensors, particularly, photoelectric barriers.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: July 31, 2007
    Assignee: Netstal-Maschinen AG
    Inventors: Robert Weinmann, Daniel Jenny
  • Publication number: 20070087080
    Abstract: The invention relates to a method and an injection unit which is movable on runners (6) of the frame (7) of an injection molding machine with the aid of a running gear (40) and comprises a drive unit (10, 23) for axially displacing and pressing the plasticizing cylinder (2) to the injection mold. According to the invention, the tip (16) of the plasticizing cylinder (16) is adjusted on both a vertical and a horizontal plane via a slight rotary movement of the entire injection unit (1) prior to the production if the concentric sealing connection to the injection port (17) of the mold is insufficient. The inventive injection unit (1) is supported via a support (5) that is disposed so as to be movable on the frame (7) of the injection-molded part while being provided with an individual drive unit (10, 23) via which the plasticizing cylinder (2) can be pressed to the injection mold so as to create a concentric sealing connection thereto.
    Type: Application
    Filed: August 23, 2004
    Publication date: April 19, 2007
    Inventor: Robert Weinmann
  • Publication number: 20070001344
    Abstract: The invention relates to a method and device for the production of injection moulded parts, especially preforms, in an injection molding method. The raw material and the additives are fed to a plasticizing worm (4) which injects pressurized plastic melt into the cavities of an injection mould (7,8) and the injection molded parts are removed from the moulds after cooling has occurred. According to the invention, the additives, especially AA blockers or coloring, are added directly to the worm cylinder in liquid form in a dosed manner after the raw material has been inputted. The invention relates more specifically to the injection molding of preforms for the production of PET bottles. One advantage of the invention is that it enables the acetaldehyde content to be reduced by 50%, the dosing time can also be reduced significantly and said dosing can be stabilized in a significant manner.
    Type: Application
    Filed: May 19, 2003
    Publication date: January 4, 2007
    Inventors: Robert Weinmann, Andreas Lind, Jurg Eberle
  • Patent number: 7097791
    Abstract: The invention relates to a novel method for producing precision parts, especially flat optical data carriers. According to the inventive method, the embossing procedure is program-controlled on the basis of the path function of an electromechanical or hydraulic drive of the driven mold half. When a servomotor is used, the internal path signal thereof can be directly used for calculating the path function or for operating the program control. The novel method allows for a complete speed control of the embossing phase. All factors that can be mechanically influenced from the exterior are detected in more detail for the conditions before and during the embossing phase, thereby allowing for an optimum precision and reproducibility.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: August 29, 2006
    Assignee: Netstal Maschinen AG
    Inventor: Robert Weinmann
  • Publication number: 20060138696
    Abstract: The invention relates to a method and a device for the secondary treatment and the cooling of preforms (10) once they have been removed from the open mould halves (18, 9) of an injection moulding machine. The preforms are removed from the open moulds (18, 9) while still hot, by means of water-cooled cooling sleeves (21) of a removal device (11), and are subjected to intensive cooling during the duration of an injection moulding cycle. Both the entire inner side and the entire outer side of the blow-moulded part (10) are subjected to intensive cooling. Secondary cooling is then carried out, the duration thereof being equal to a multiple of the duration of an injection moulding cycle. After being removed from the casting moulds, the preforms are dynamically introduced into the cooling sleeves (21) until they fully touch the walls thereof. The inner cooling is carried out in a time-delayed manner.
    Type: Application
    Filed: February 21, 2003
    Publication date: June 29, 2006
    Inventor: Robert Weinmann
  • Patent number: 7033158
    Abstract: An injection screw is rotationally driven by a rotating motor having a stator and a rotor and can be moved by a number of electrical linear motors, linear motor comprising a primary part, which functions as a stator, and a secondary part, which is linearly movable in the axial direction in a screw cylinder to execute the injection function. The primary parts are assembled to form a first housing-like unit and the secondary parts are assembled to form a second housing-like unit which is coupled to the screw for drive purposes. The rotating motor, fixedly connected to the screw in the axial direction, is arranged with its stator fixedly coupled in the axial direction to the secondary housing-like unit.
    Type: Grant
    Filed: December 3, 2001
    Date of Patent: April 25, 2006
    Assignee: Mannesmann Plastics Machinery GmbH
    Inventors: Klaus Becker, Ralf Ingo Meyer, Robert Weinmann
  • Patent number: 7004746
    Abstract: The novel solution provides a closing part comprising an electromechanical drive for a CD injection molding machine having a working stroke and a servicing stroke. The entire mold closing unit is characterized by the combination of a short-stroke crank mechanism which is operated by an electric motor and which is provided for the working stroke and of a central electromotive column-type nut drive for the servicing stroke. According to the invention, synchronous motors or asynchronous motors are used with corresponding servo boosters to realize servo axles. The central column drive is used as a control element of the closing force control, together with a force sensor for detecting the closing force, as an actual value transmitter and as a control device.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: February 28, 2006
    Assignee: Netstal-Maschinen AG
    Inventors: Robert Weinmann, Bruno Stillhard, Ralph Keitel
  • Publication number: 20050127571
    Abstract: The invention relates to a manufacturing inspection method for the cyclic production of injection-molded parts in multi-cavity casting molds involving a row-by-row monitoring of the injection-molded parts after they are removed from the casting molds, said monitoring being effected by sensors, particularly, photoelectric barriers. The invention also relates to an inspection device used during the cyclic production of injection-molded parts in multi-cavity casting molds involving a row-by-row monitoring of the injection-molded parts after they are removed from the casting molds, said monitoring being effected by sensors, particularly, photoelectric barriers.
    Type: Application
    Filed: January 29, 2003
    Publication date: June 16, 2005
    Inventors: Robert Weinmann, Daniel Jenny
  • Publication number: 20040219258
    Abstract: The novel solution provides a closing part comprising an electromechanical drive for a CD injection molding machine having a working stroke and a servicing stroke. The entire mold closing unit is characterized by the combination of a short-stroke crank mechanism which is operated by an electric motor and which is provided for the working stroke and of a central electromotive column-type nut drive for the servicing stroke. According to the invention, synchronous motors or asynchronous motors are used with corresponding servo boosters to realize servo axles. The central column drive is used as a control element of the closing force control, together with a force sensor for detecting the closing force, as an actual value transmitter and as a control device.
    Type: Application
    Filed: June 4, 2004
    Publication date: November 4, 2004
    Applicant: Netstal-Machinen AG
    Inventors: Robert Weinmann, Bruno Stillhard, Ralph Keitel
  • Patent number: 6796783
    Abstract: The novel solution provides a closing part comprising an electromechanical drive for a CD injection molding machine having a working stroke and a servicing stroke. The entire mold closing unit is characterized by the combination of a short-stroke crank mechanism which is operated by an electric motor and which is provided for the working stroke and of a central electromotive column-type nut drive for the servicing stroke. According to the invention, synchronous motors or asynchronous motors are used with corresponding servo boosters to realize servo axles. The central column drive is used as a control element of the closing force control, together with a force sensor for detecting the closing force, as an actual value transmitter and as a control device.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: September 28, 2004
    Assignee: Netsal Maschinen AG
    Inventors: Robert Weinmann, Bruno Stillhard, Ralph Keitel
  • Publication number: 20040018270
    Abstract: An injection screw is rotationally driven by a rotating motor having a stator and a rotor and can be moved by a number of electrical linear motors, linear motor comprising a primary part, which functions as a stator, and a secondary part, which is linearly movable in the axial direction in a screw cylinder to execute the injection function. The primary parts are assembled to form a first housing-like unit and the secondary parts are assembled to form a second housing-like unit which is coupled to the screw for drive purposes. The rotating motor, fixedly connected to the screw in the axial direction, is arranged with its stator fixedly coupled in the axial direction to the secondary housing-like unit.
    Type: Application
    Filed: June 3, 2003
    Publication date: January 29, 2004
    Inventors: Klaus Becker, Ralf Ingo Meyer, Robert Weinmann
  • Publication number: 20030185932
    Abstract: The invention relates to an injection screw drive for a plastic injection molding machine comprising axes (A1, A2) respectively provided for the rotative and for the axial motion of the injection screw (4). According to the invention, the injection screw drive has at least one double rack rail overdrive for effecting the axial motion. The injection worm drive is configured as a gear combination having at least two drive motors (18, 44) and an output axle. The gear combination has, as a core, a gear block with a gear casing (42), to which at least two reducing gears are connected that effect the rotative and the axial motion of the injection screw (4). This enables the entire machine to be provided with a short and compact structure insofar as this concerns the injection aggregate. According to a second embodiment, both drives have separate housings. The entire injection unit rests, in a known manner, on the machine stand (33) via guide rails (32) such that it can be displaced.
    Type: Application
    Filed: May 9, 2003
    Publication date: October 2, 2003
    Inventors: Franz Chromy, Robert Weinmann, Erich Knobel