Patents by Inventor Wolfhard Schwarz

Wolfhard Schwarz 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: 9221663
    Abstract: A capping head for screwing screw caps onto containers includes a center axis and a capping cone having a cavity that holds a screw cap. The capping head has a toothed profile, whose teeth essentially point in the direction of center axis. The cavity has an opening. A root diameter of the toothed profile lies on a first imaginary annular surface. A tip diameter of the toothed profile lies on a secondary imaginary annular surface. The first and second annular surfaces are arranged concentric to the center axis. The second annular surface and the center axis enclose a first angle, while the diameter of capping cone increases in the direction of opening. The first annular surface and the second annular surface enclose a second angle that is greater than 0°.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: December 29, 2015
    Assignee: Closure Systems Intenational Deutschland GmbH
    Inventor: Wolfhard Schwarz
  • Publication number: 20120174536
    Abstract: A capping machine for closing a receptacle with a cap having a preformed internal thread, the capping machine including a capping head, a drive shaft, a drive, a shifting device, at least one sensor and at least one control device. The at least one sensor senses the position of the cap relative to the receptacle once the cap has been placed on the receptacle. The shifting device includes a comparing unit in which the sensed position and the reference position are compared. A direction of rotation of the drive is defined by the control device via the shifting device in accordance with the comparison.
    Type: Application
    Filed: September 13, 2010
    Publication date: July 12, 2012
    Applicant: CLOSURE SYSTEMS INTERNATIONAL DEUTSCHLAND GMH
    Inventor: Wolfhard Schwarz
  • Publication number: 20120159902
    Abstract: A capping head for screwing screw caps onto containers includes a center axis and a capping cone having a cavity that holds a screw cap. The capping head has a toothed profile, whose teeth essentially point in the direction of center axis. The cavity has an opening. A root diameter of the toothed profile lies on a first imaginary annular surface. A tip diameter of the toothed profile lies on a secondary imaginary annular surface. The first and second annular surfaces are arranged concentric to the center axis. The second annular surface and the center axis enclose a first angle, while the diameter of capping cone increases in the direction of opening. The first annular surface and the second annular surface enclose a second angle that is greater than 0°.
    Type: Application
    Filed: September 13, 2010
    Publication date: June 28, 2012
    Applicant: Closure Systems International Deutschland GmbH
    Inventor: Wolfhard Schwarz
  • Patent number: 7712619
    Abstract: We propose a screw closure for containers, particularly bottles, with a top from which extends a surrounding skirt, said screw closure having a holding device for fixing the screw closure to the container, and with a security band disposed at the edge of the skirt that is facing away from the top, said security band being connected to the screw closure via a predetermined breaking line, and at least one elongation zone being provided in the security band, said elongation zone enabling the security band to extend preferably transverse to its circumferential direction. This screw closure is characterized by the fact that the security band (11) has at least one elastic region (39) that is formed by the lower part of the security band (11) between a holding strip (29) and an elastic holding band (35).
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: May 11, 2010
    Assignee: Alcoa Deutschland GmbH
    Inventors: Wolfhard Schwarz, Engelbert Eisele
  • Publication number: 20050045578
    Abstract: We propose a screw closure for containers, particularly bottles, with a top from which extends a surrounding skirt, said screw closure having a holding device for fixing the screw closure to the container, and with a security band disposed at the edge of the skirt that is facing away from the top, said security band being connected to the screw closure via a predetermined breaking line, and at least one elongation zone being provided in the security band, said elongation zone enabling the security band to extend preferably transverse to its circumferential direction. This screw closure is characterized by the fact that the security band (11) has at least one elastic region (39) that is formed by the lower part of the security band (11) between a holding strip (29) and an elastic holding band (35).
    Type: Application
    Filed: August 20, 2002
    Publication date: March 3, 2005
    Inventors: Wolfhard Schwarz, Engelbert Eisele
  • Patent number: 6658814
    Abstract: A feed unit for a container closure device, with a feed device for container closures and a transfer device which transfers the closures from the feed device to a workstation at which containers are closed. The feed device has a rail that terminates at a stationary check shoulder which protrudes into the feed path of the closures along the feed device rail to position each closure to be picked up by the transfer device moving on a path.
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: December 9, 2003
    Assignee: Alcoa Deutschland GmbH Verpackungswerke
    Inventors: Günther Spatz, Wolfhard Schwarz, Karl Heinz Spether
  • Publication number: 20020020719
    Abstract: A feed unit for a container closure device, with a feed device for container closures and a transfer device which transfers the closures from the feed device to a workstation at which containers are closed. The feed device has a rail that terminates at a stationary check shoulder which protrudes into the feed path of the closures along the feed device rail to position each closure to be picked up by the transfer device moving on a path.
    Type: Application
    Filed: June 21, 2001
    Publication date: February 21, 2002
    Applicant: ALCOA Deutschland GmbH Verpackungswerke
    Inventors: Gunther Spatz, Wolfhard Schwarz, Karl Heinz Spether
  • Patent number: 5964139
    Abstract: An apparatus for producing a container cap. The cap is formed of plastic and includes a flat top, a casing emanating from the flat top, and a guarantee area provided in an edge zone of the casing. The guarantee area includes at least one holding section on a surface thereof and at least one vertical incision extending over a height of the guarantee area. The apparatus includes a centering device which rotates and securely holds the cap in a fixed position based on the at least one holding section, and a cutting device which cuts the at least one vertical incision into a wall of the guarantee area at a predetermined distance from the at least one holding section while the centering device rotates and securely holds the cap in the fixed position.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: October 12, 1999
    Assignee: Alcoa Deutschland GmbH
    Inventors: Gunter Spatz, Wolfhard Schwarz
  • Patent number: 5937726
    Abstract: A method for cutting a vertical incision in a plastic cap for containers. The plastic cap includes a flat top, a casing emanating from the flat top, and a guarantee area provided in an edge zone of the casing. The guarantee area has at least one holding section on a surface of the guarantee area.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: August 17, 1999
    Assignee: Alcoa Deutschland GmbH
    Inventors: Gunter Spatz, Wolfhard Schwarz
  • Patent number: 5660289
    Abstract: A plastic cap for containers comprises a flat top, a casing emanating from same, as well as a guarantee area in the form of a guarantee ring provided in the edge zone of the casing. The guarantee area is provided with at least one vertical incision extending over the height of the guarantee area. The vertical incision is arranged in dependence on specific form characteristics, preferably in dependence on the arrangement of holding webs of the cap, and is cut into the wall of the guarantee ring.
    Type: Grant
    Filed: April 11, 1995
    Date of Patent: August 26, 1997
    Assignee: Alcoa Deutschland GmbH
    Inventors: Gunter Spatz, Wolfhard Schwarz
  • Patent number: 5321935
    Abstract: A slewing device for screw closures for containers includes a screw closure receiving member, a drive for rotating the receiving member, and a control arrangement for controlling power supply to the drive and including a torque sensor for sensing an instantaneous drive torque, a comparator for comparing the instantaneous drive torque with a closing torque having a predetermined value, and a sensor for sensing an angle of rotation of the receiving member and actuatable only upon the instantaneous drive torque reaching the predetermine value. The method of placing a screw closure on a container includes applying a drive torque to the screw closure to screw it down onto the container, sensing an instantaneous drive torque applied to the screw closure, comparing the instantaneous drive torque with a closing torque having a predetermined value, and sensing an angle of rotation of the screw closure only upon the instantaneous drive torque reaching the predetermined value of the closing torque.
    Type: Grant
    Filed: October 8, 1992
    Date of Patent: June 21, 1994
    Assignee: Alcoa Deutschland GmbH
    Inventors: Gunter Spatz, Wolfhard Schwarz