Patents by Inventor Robert Ludwig

Robert Ludwig 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).

  • Publication number: 20240306825
    Abstract: Devices, systems and methods for hanging and securing items for display are disclosed. The hanger devices and systems are self-locking, secure and do not require special tools to install and/or remove. A hanger for displaying at least one item of merchandise relative to a structure includes a first hanger member and a second hanger member that are removably coupled to each other, the first hanger member and second hanger member forming a retaining portion that retains the hanger to a structure and a hanging portion that enable items of merchandise to be placed thereon and be displayed. Additionally, a hanger capture device is provided to be mounted to a slatwall to prevent hangers from being removed from the slatwall.
    Type: Application
    Filed: May 22, 2024
    Publication date: September 19, 2024
    Inventors: William H. Bullwinkel, Robert Ludwig, David R. Wachsman, Alvin Ma
  • Patent number: 11992135
    Abstract: Devices, systems and methods for hanging and securing items for display whereby the hanger devices and systems are self-locking, secure and do not require special tools to install and/or remove. A hanger for displaying at least one item of merchandise relative to a structure includes a first hanger member and a second hanger member that are removably coupled to each other, the first hanger member and second hanger member forming a retaining portion that retains the hanger to a structure and a hanging portion that enable items of merchandise to be placed thereon and be displayed. Additionally, a hanger capture device is provided to be mounted to a slatwall to prevent hangers from being removed from the slatwall.
    Type: Grant
    Filed: September 23, 2022
    Date of Patent: May 28, 2024
    Assignee: Innovation Lock, LLC
    Inventors: William H. Bullwinkel, Robert Ludwig, David R. Wachsman, Alvin Ma
  • Patent number: 11976497
    Abstract: A drawer lock assembly is provided including a housing having a front face and a rear face; a barrel having a first end extending perpendicularly from the front face of the housing and a second end extending through the rear face of the housing; a locking actuation member disposed through the first end of the barrel; a driver disposed through the second end of the barrel to engage the locking actuation member; a bolt including a first member offset from a second member in a parallel relationship, the first member includes a slot configured to receive a cam of the driver; and an endplate configured to retain the driver and bolt in the housing, the endplate including a channel configured to receive the second member of the bolt, wherein upon actuation of the locking actuation member, the second member extends beyond the housing to engage a recess of a structure.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: May 7, 2024
    Assignee: Innovation Lock, LLC
    Inventors: William H. Bullwinkel, Robert Ludwig, David R. Wachsman, Alvin Ma
  • Patent number: 11879269
    Abstract: Ratchet lock assemblies for use with various locking actuation members such as, but not limited to, lock cylinders of interchangeable core cylinder types are provided. In one embodiment, a ratchet lock assembly includes a plunger barrel with at least one projection extending therefrom. The at least one projection configured to mate with at least one aperture of a locking bar or strike plate to lock the ratchet lock assembly in place. In another embodiment, a ratchet lock assembly is provided with an anti-shim configuration to prevent unwanted removal of the ratchet lock assembly. The anti-shim ratchet lock assembly includes a driver and cam to lock a member, e.g., a spring, of the ratchet lock assembly to a locking bar or strike plate.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: January 23, 2024
    Assignee: Innovation Lock, LLC
    Inventors: William H. Bullwinkel, Robert Ludwig, David R. Wachsman, Alvin Ma
  • Publication number: 20230218333
    Abstract: A monitoring unit which is configured to monitor a patient during an operation of a high-frequency surgery device, wherein the high-frequency surgery device is configured to separate and/or coagulate biological tissue by means of high-frequency electrical energy, wherein the monitoring unit has: measuring electrodes which are disposed in a periphery of the patient, and an evaluation and control unit which is configured to impress a predetermined measuring alternating voltage or a predetermined measuring alternating current on the measuring electrodes, and to monitor an impedance decreasing between the measuring electrodes and to monitor a time curve of the impedance and/or to monitor a temporal change thereof
    Type: Application
    Filed: June 9, 2021
    Publication date: July 13, 2023
    Inventors: Stefan Götz, Pascal Albert Scherz, Robert Ludwig Conle
  • Publication number: 20230102705
    Abstract: Devices, systems and methods for hanging and securing items for display are provided. Hanger devices of the present disclosure are self-locking, secure and do not require special tools to install and/or remove. A hanger for displaying at least one item of merchandise relative to a structure includes a first hanger member and a second hanger member that are removably coupled to each other, the first hanger member and second hanger member forming a retaining portion that retains the hanger to a structure and a hanging portion that enable items of merchandise to be placed thereon and be displayed. Additionally, a hanger capture device is provided to be mounted to a slatwall to prevent hangers from being removed from the slatwall.
    Type: Application
    Filed: September 23, 2022
    Publication date: March 30, 2023
    Inventors: William H. Bullwinkel, Robert Ludwig, David R. Wachsman, Alvin Ma
  • Publication number: 20220356734
    Abstract: Ratchet lock assemblies for use with various locking actuation members such as, but not limited to, lock cylinders of interchangeable core cylinder types are provided. In one embodiment, a ratchet lock assembly includes a plunger barrel with at least one projection extending therefrom. The at least one projection configured to mate with at least one aperture of a locking bar or strike plate to lock the ratchet lock assembly in place. In another embodiment, a ratchet lock assembly is provided with an anti-shim configuration to prevent unwanted removal of the ratchet lock assembly. The anti-shim ratchet lock assembly includes a driver and cam to lock a member, e.g., a spring, of the ratchet lock assembly to a locking bar or strike plate.
    Type: Application
    Filed: November 29, 2021
    Publication date: November 10, 2022
    Inventors: William H. Bullwinkel, Robert Ludwig, David R. Wachsman, Alvin Ma
  • Publication number: 20220213719
    Abstract: A drawer lock assembly is provided including a housing having a front face and a rear face; a barrel having a first end extending perpendicularly from the front face of the housing and a second end extending through the rear face of the housing; a locking actuation member disposed through the first end of the barrel; a driver disposed through the second end of the barrel to engage the locking actuation member; a bolt including a first member offset from a second member in a parallel relationship, the first member includes a slot configured to receive a cam of the driver; and an endplate configured to retain the driver and bolt in the housing, the endplate including a channel configured to receive the second member of the bolt, wherein upon actuation of the locking actuation member, the second member extends beyond the housing to engage a recess of a structure.
    Type: Application
    Filed: December 22, 2021
    Publication date: July 7, 2022
    Inventors: William H. Bullwinkel, Robert Ludwig, David R. Wachsman, Alvin Ma
  • Patent number: 10170231
    Abstract: The present invention relates to a choke with two coils and a core for interleaved applications in step-up or step-down circuits or power factor compensation circuits. The core comprises several core sections with several lateral legs and a middle leg, whereby the core is designed such, that a coupling factor k of the two coils is smaller than 3%-5%. Furthermore, the core is designed such, that the core section form two loops with the middle leg as a common section, whereby each of the two coils lies on different loops outside of the common section. The lateral legs have a cross section A1 and the middle leg for the common section has a cross section A2<2×A1.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: January 1, 2019
    Assignee: Sumida Components & Modules GmbH
    Inventors: Johann Winkler, Ernst Holzinger, Robert Ludwig, Iyad Kebaisy, Herbert Jungwirth
  • Patent number: 10128791
    Abstract: Structures and methods for supporting solar panels are provided. The structure includes a plurality of tee extrusions, a plurality of legs, a plurality of trusses, a plurality of ridge rails, and a plurality of clips. The tee extrusions form two parallel tracks upon which the legs are secured. The legs project upward from the extrusions and are coupled to the trusses, which are above and perpendicular to the trusses. At least four legs support each truss. The ridge rails sit on the truss and a parallel to the extrusions. The solar panels sit on the ridge rails and are secured to the ridge rails by the clips.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: November 13, 2018
    Assignee: Brooklyn Solar Works
    Inventors: Thomas Robert Ludwig, Gaelen Clark McKee, Mark Hilary Cunningham
  • Publication number: 20180048260
    Abstract: Structures and methods for supporting solar panels are provided. The structure includes a plurality of tee extrusions, a plurality of legs, a plurality of trusses, a plurality of ridge rails, and a plurality of clips. The tee extrusions form two parallel tracks upon which the legs are secured. The legs project upward from the extrusions and are coupled to the trusses, which are above and perpendicular to the trusses. At least four legs support each truss. The ridge rails sit on the truss and a parallel to the extrusions. The solar panels sit on the ridge rails and are secured to the ridge rails by the clips.
    Type: Application
    Filed: August 10, 2017
    Publication date: February 15, 2018
    Applicant: Brooklyn Solar Works
    Inventors: Thomas Robert Ludwig, Gaelen Clark McKee, Mark Hilary Cunningham
  • Publication number: 20150287512
    Abstract: The present invention relates to a choke with two coils and a core for interleaved applications in step-up or step-down circuits or power factor compensation circuits. The core comprises several core sections with several lateral legs and a middle leg, whereby the core is designed such, that a coupling factor k of the two coils is smaller than 3%-5%. Furthermore, the core is designed such, that the core section form two loops with the middle leg as a common section, whereby each of the two coils lies on different loops outside of the common section. The lateral legs have a cross section A1 and the middle leg for the common section has a cross section A2<2×A1.
    Type: Application
    Filed: March 31, 2015
    Publication date: October 8, 2015
    Inventors: Johann WINKLER, Ernst HOLZINGER, Robert LUDWIG, Iyad KEBAISY, Herbert JUNGWIRTH
  • Publication number: 20070243397
    Abstract: An essentially chromium(VI)-free, chromium(III)-containing corrosion resistant conversion solution, or layer thereof for treating metals such as zinc, zinc alloy, aluminum, or aluminum alloy substrates. The conversion solution, is substantially free of chromium(III)-chelates, is capable of producing thick conversion films even at low temperatures, has good corrosion resistance, and is self healing with regard to scratches and the like.
    Type: Application
    Filed: April 17, 2006
    Publication date: October 18, 2007
    Inventors: Robert Ludwig, Andrew Recker
  • Patent number: D981207
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: March 21, 2023
    Assignee: Innovation Lock, LLC
    Inventors: William H. Bullwinkel, Robert Ludwig, David R. Wachsman
  • Patent number: D988835
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: June 13, 2023
    Assignee: innovation lock, llc
    Inventors: William H. Bullwinkel, Robert Ludwig, David R. Wachsman