Patents by Inventor Erich Schaefer

Erich Schaefer 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: 11608646
    Abstract: A panel including an upper side, a lower side, a core and complementary locking elements provided in pairs on opposing panel edges. At least one pair of locking elements has complementary hook profiles, namely a receiving hook and an arresting hook. The receiving hook has a hook periphery arranged remote from the main body and a receiving recess arranged in the vicinity of the basic body. The receiving recess is open towards the panel upper side, and the arresting hook has an arresting recess, arranged in the vicinity of the basic body and open towards the panel lower side, and has an arresting shoulder remote from the basic body and which, in the vertical joining direction, fits into the receiving recess of the receiving hook. The arresting hook has a vertically locking arresting contour and the receiving hook has a form-fitting contour, which form fits with the arresting contour of the arresting hook.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: March 21, 2023
    Assignee: AKZENTA PANEELE + PROFILE GMBH
    Inventors: Erich Schäfers, Hans-Jürgen Hannig
  • Patent number: 11274452
    Abstract: A panel having a panel upper side and a panel lower side and at least two opposing panel edges, which have each an edge break on the panel upper side, the edge breaks forming in the connected state a joint in a covering surface. The edge break of one of the panel edges is formed larger than the edge break of the opposing panel edge, and a lower part of the large edge break of the one panel edge is overlapped in the connected state by the small edge break of the opposing panel edge.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: March 15, 2022
    Assignee: AKZENTA PANEELE + PROFILE GMBH
    Inventors: Arne Loebel, Erich Schäfers
  • Patent number: 11168482
    Abstract: A panel, including a first edge pair of complementary interlocking retaining profiles on opposing panel edges. One of the retaining profiles has a locking groove having a retaining strip, which protrudes at the free end of the lower groove wall toward the panel surface. The complementary retaining profile has a locking tongue, which, in the joined state, interacts with the retaining surface of the retaining strip, and a play with both vertical and horizontal components so that the retaining profiles are movable perpendicularly to the panel surface and movable perpendicularly to the panel edges and parallel to the panel surface. In a joining step, the bottom side of the locking tongue is laid horizontal onto the retaining strip of the locking groove and then the tongue top side is slid against the inside of the upper groove wall, the tongue top side touching the inside of the upper groove wall in the region of the panel core.
    Type: Grant
    Filed: November 23, 2018
    Date of Patent: November 9, 2021
    Assignee: SURFACE TECHNOLOGIES GMBH & CO. KG
    Inventors: Hans-Jürgen Hannig, Erich Schäfers
  • Publication number: 20210254349
    Abstract: A panel including an upper side, a lower side, a core and complementary locking elements provided in pairs on opposing panel edges. At least one pair of locking elements has complementary hook profiles, namely a receiving hook and an arresting hook. The receiving hook has a hook periphery arranged remote from the main body and a receiving recess arranged in the vicinity of the basic body. The receiving recess is open towards the panel upper side, and the arresting hook has an arresting recess, arranged in the vicinity of the basic body and open towards the panel lower side, and has an arresting shoulder remote from the basic body and which, in the vertical joining direction, fits into the receiving recess of the receiving hook. The arresting hook has a vertically locking arresting contour and the receiving hook has a form-fitting contour, which form fits with the arresting contour of the arresting hook.
    Type: Application
    Filed: June 13, 2019
    Publication date: August 19, 2021
    Inventors: Erich SCHÄFERS, Hans-Jürgen HANNIG
  • Patent number: 10876301
    Abstract: A panel having at least one pair of complementary locking elements at mutually opposite panel edges, wherein the locking elements are in the form of positively locking holding profiles with a locking groove and with a complementary locking tongue respectively, wherein at least at the edge of one of the holding profiles the panel surface has an edge break portion, with the proviso that that holding profile which is provided with the edge break portion is provided with an upper contact surface beneath the edge break portion and the complementary holding profile is provided with a complementary upper contact surface which is arranged substantially parallel thereto, and wherein a butt joint can be produced by the two contact surfaces in contact with each other, wherein the butt joint is inclined relative to the panel surface and for that purpose one of the contact surfaces is associated with a tongue and is inclined downwardly in the direction of the free end of the tongue in question and the complementary upper
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: December 29, 2020
    Assignee: AKZENTA PANEELE + PROFILE GMBH
    Inventors: Hans-Jürgen Hannig, Erich Schäfers
  • Publication number: 20200378136
    Abstract: A panel, including a first edge pair of complementary interlocking retaining profiles on opposing panel edges. One of the retaining profiles has a locking groove having a retaining strip, which protrudes at the free end of the lower groove wall toward the panel surface. The complementary retaining profile has a locking tongue, which, in the joined state, interacts with the retaining surface of the retaining strip, and a play with both vertical and horizontal components so that the retaining profiles are movable perpendicularly to the panel surface and movable perpendicularly to the panel edges and parallel to the panel surface. In a joining step, the bottom side of the locking tongue is laid horizontal onto the retaining strip of the locking groove and then the tongue top side is slid against the inside of the upper groove wall, the tongue top side touching the inside of the upper groove wall in the region of the panel core.
    Type: Application
    Filed: November 23, 2018
    Publication date: December 3, 2020
    Inventors: Hans-Jürgen HANNIG, Erich SCHÄFERS
  • Patent number: 10612248
    Abstract: A panel having a panel upper side and a panel lower side and at least two opposing panel edges. One panel edge has a simple fold projecting in the lower region of the panel edge and recessed in the upper region. The opposing panel edge has a complementary simple fold projecting in the upper region and recessed in the lower region, so that both folds form together a stepshaped connection in the connected state. The panel edges each have an edge break on the panel upper side, which form in the connected state a joint in a covering surface. The edge break of one of the panel edges is larger than the edge break of the opposing panel edge. A lower part of the large edge break of the one panel edge is overlapped in the connected state by the small edge break of the opposing panel edge.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: April 7, 2020
    Assignee: AKZENTA PANEELE + PROFILE GMBH
    Inventors: Hans-Jürgen Hannig, Erich Schäfers
  • Publication number: 20200011067
    Abstract: A panel having a panel upper side and a panel lower side and at least two opposing panel edges, which have each an edge break on the panel upper side, the edge breaks forming in the connected state a joint in a covering surface. The edge break of one of the panel edges is formed larger than the edge break of the opposing panel edge, and a lower part of the large edge break of the one panel edge is overlapped in the connected state by the small edge break of the opposing panel edge.
    Type: Application
    Filed: September 19, 2019
    Publication date: January 9, 2020
    Inventors: Arne LOEBEL, Erich SCHÄFERS
  • Patent number: 10508457
    Abstract: A panel having a pair of complementary locking elements at mutually opposite panel edges. The locking elements are positively locking holding profiles with a locking groove and a complementary locking tongue respectively. At least at the edge of one of the holding profiles the panel surface has an edge break portion. The holding profile provided with the edge break portion has an upper contact surface beneath the edge break portion and the complementary holding profile has a complementary upper contact surface arranged substantially parallel thereto. A butt joint is produced by contact of two contact surfaces. The butt joint is inclined relative to the panel surface. One of the contact surfaces is associated with a tongue and is inclined downwardly toward the free end of the tongue in question and the complementary upper contact surface is associated with a groove and is inclined downwardly toward the bottom of the groove.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: December 17, 2019
    Assignee: AKZENTA PANEELE + PROFILE GMBH
    Inventors: Hans-Jürgen Hannig, Erich Schäfers
  • Patent number: 10458124
    Abstract: A panel having a panel upper side and a panel lower side and at least two opposing panel edges, which have each an edge break on the panel upper side, the edge breaks forming in the connected state a joint in a covering surface. The edge break of one of the panel edges is formed larger than the edge break of the opposing panel edge, and a lower part of the large edge break of the one panel edge is overlapped in the connected state by the small edge break of the opposing panel edge.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: October 29, 2019
    Assignee: AKZENTA PANEELE + PROFILE GMBH
    Inventors: Arne Loebel, Erich Schäfers
  • Publication number: 20190145108
    Abstract: A panel having at least one pair of complementary locking elements at mutually opposite panel edges, wherein the locking elements are in the form of positively locking holding profiles with a locking groove and with a complementary locking tongue respectively, wherein at least at the edge of one of the holding profiles the panel surface has an edge break portion, with the proviso that that holding profile which is provided with the edge break portion is provided with an upper contact surface beneath the edge break portion and the complementary holding profile is provided with a complementary upper contact surface which is arranged substantially parallel thereto, and wherein a butt joint can be produced by the two contact surfaces in contact with each other, wherein the butt joint is inclined relative to the panel surface and for that purpose one of the contact surfaces is associated with a tongue and is inclined downwardly in the direction of the free end of the tongue in question and the complementary upper
    Type: Application
    Filed: January 16, 2019
    Publication date: May 16, 2019
    Inventors: Hans-Jürgen HANNIG, Erich SCHÄFERS
  • Publication number: 20190003188
    Abstract: A panel having a panel upper side and a panel lower side and at least two opposing panel edges, which have each an edge break on the panel upper side, the edge breaks forming in the connected state a joint in a covering surface. The edge break of one of the panel edges is formed larger than the edge break of the opposing panel edge, and a lower part of the large edge break of the one panel edge is overlapped in the connected state by the small edge break of the opposing panel edge.
    Type: Application
    Filed: July 21, 2016
    Publication date: January 3, 2019
    Inventors: Arne LOEBEL, Erich SCHÄFERS
  • Publication number: 20180216353
    Abstract: A panel having a panel upper side and a panel lower side and at least two opposing panel edges. One panel edge has a simple fold projecting in the lower region of the panel edge and recessed in the upper region. The opposing panel edge has a complementary simple fold projecting in the upper region and recessed in the lower region, so that both folds form together a step shaped connection in the connected state. The panel edges each have an edge break on the panel upper side, which form in the connected state a joint in a covering surface. The edge break of one of the panel edges is larger than the edge break of the opposing panel edge. A lower part of the large edge break of the one panel edge is overlapped in the connected state by the small edge break of the opposing panel edge.
    Type: Application
    Filed: July 21, 2016
    Publication date: August 2, 2018
    Inventors: Hans-Jürgen HANNIG, Erich SCHÄFERS
  • Publication number: 20170016235
    Abstract: A panel having a pair of complementary locking elements at mutually opposite panel edges. The locking elements are positively locking holding profiles with a locking groove and a complementary locking tongue respectively. At least at the edge of one of the holding profiles the panel surface has an edge break portion. The holding profile provided with the edge break portion has an upper contact surface beneath the edge break portion and the complementary holding profile has a complementary upper contact surface arranged substantially parallel thereto. A butt joint is produced by contact of two contact surfaces. The butt joint is inclined relative to the panel surface. One of the contact surfaces is associated with a tongue and is inclined downwardly toward the free end of the tongue in question and the complementary upper contact surface is associated with a groove and is inclined downwardly toward the bottom of the groove.
    Type: Application
    Filed: September 30, 2015
    Publication date: January 19, 2017
    Inventors: Hans-Jürgen HANNIG, Erich SCHÄFERS
  • Patent number: 6690339
    Abstract: A method and a circuit arrangement for controlling the operating point of a cathode ray tube (3) for use in image technology applications. A video signal (1) is supplied to both the tube (3) and to a cathode ray tube model (2), which the model (2) uses to emulate a beam current. From the emulated beam current and a measured beam current, a characteristic quantity for adjusting the operating point is determined.
    Type: Grant
    Filed: June 7, 2001
    Date of Patent: February 10, 2004
    Assignee: Siemens Aktiengesellschaft
    Inventors: Klaus Burkhardt, Uwe Nagel, Erich Schaefer, Hartmut Schulz
  • Publication number: 20020000952
    Abstract: A method and a circuit arrangement for controlling the operating point of a cathode ray tube (30) for use in image technology applications. A video signal (10) is supplied to both the tube (30) and to a cathode ray tube model (20), which the model (20) uses to emulate a beam current. From the emulated beam current and a measured beam current, a characteristic quantity for adjusting the operating point is determined.
    Type: Application
    Filed: June 7, 2001
    Publication date: January 3, 2002
    Applicant: SIEMENS AG
    Inventors: Klaus Burkhardt, Uwe Nagel, Erich Schaefer, Hartmut Schulz
  • Patent number: D1022666
    Type: Grant
    Filed: June 9, 2022
    Date of Patent: April 16, 2024
    Inventor: Erich Schäfers