Patents by Inventor Robert L. Marcus, JR.

Robert L. Marcus, JR. 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: 11358356
    Abstract: A transfer ring for use in the manufacture of vehicle tires, the transfer ring including a radially expandable and collapsible segmented cylindrical gripping surface defined by a plurality of inwardly facing arcuate surfaces mounted for radial movement toward and away from a central axis of the cylindrical gripping surface, wherein each arcuate surface is mounted to a corresponding set of driven linkages comprising first, second, and third members, each set of driven linkages further including a block-and-rail cam follower secured to at least one of the first, second, and third members and configured to cooperate with the first, second, and third members to limit movement of the arcuate surface to linear movement radially toward and away from the central axis of the cylindrical gripping surface.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: June 14, 2022
    Inventors: Stuart J. Hassell, William A. Jones, Robert L. Marcus, Jr.
  • Publication number: 20200101682
    Abstract: A transfer ring for use in the manufacture of vehicle tires, the transfer ring including a radially expandable and collapsible segmented cylindrical gripping surface defined by a plurality of inwardly facing arcuate surfaces mounted for radial movement toward and away from a central axis of the cylindrical gripping surface, wherein each arcuate surface is mounted to a corresponding set of driven linkages comprising first, second, and third members, each set of driven linkages further including a block-and-rail cam follower secured to at least one of the first, second, and third members and configured to cooperate with the first, second, and third members to limit movement of the arcuate surface to linear movement radially toward and away from the central axis of the cylindrical gripping surface.
    Type: Application
    Filed: September 27, 2019
    Publication date: April 2, 2020
    Inventors: Stuart J. Hassell, William A. Jones, Robert L. Marcus, JR.
  • Patent number: 10328647
    Abstract: An improved belt and tread drum incorporating an improved segment is disclosed. Segments are mounted in side-by-side relationship about a central axis for radial movement inwardly and outwardly with respect to the central axis and include arcuate outer surfaces that collectively define an outer circumferential working surface of the drum. The segments each define opposite first and second longitudinal side margins, at least one of the first and second longitudinal side margins defining an irregular longitudinal profile.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: June 25, 2019
    Assignee: Davian Enterprises, LLC
    Inventors: Patrick Jones, Ian Smith, William Jones, Robert L. Marcus, Jr.
  • Patent number: 10189221
    Abstract: A transfer ring of the type having a plurality of shoes arranged in a substantially circular configuration to define an inwardly-facing segmented cylindrical gripping surface, and a shoe for use in such a transfer ring, are disclosed. Each shoe comprises an arcuate interior surface defining a segment of the cylindrical gripping surface. The interior surface of each shoe has a first arcuate edge and an opposite second arcuate edge arranged substantially parallel to one another, and opposite first and second end edges extending between respective ends of said first and second arcuate edges. Each first end edge of each arcuate surface is mounted adjacent the second end edge of an adjacent arcuate surface, and the first end edge of at least one of the arcuate surfaces defines a varied or irregular shape along its arcuate surface.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: January 29, 2019
    Assignee: Davian Enterprises, LLC
    Inventors: Patrick Jones, Ian Smith, William Jones, Robert L. Marcus, Jr.
  • Patent number: 10040262
    Abstract: An improved belt and tread drum incorporating an improved segment is disclosed. Segments are mounted in side-by-side relationship about a central axis for radial movement inwardly and outwardly with respect to the central axis and include arcuate outer surfaces that collectively define an outer circumferential working surface of the drum. The segments each define an arcuate outer surface defining a circumferential dimension, the outer surface having varied curvature along the circumferential dimension.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: August 7, 2018
    Assignee: Davian Enterprises, LLC
    Inventors: William Jones, Stuart J. Hassell, Robert L. Marcus, Jr.
  • Patent number: 9855715
    Abstract: A tire building drum is disclosed. A thrust plate is mounted at a tapered end of a central shaft. An actuator is slidable along the shaft between first and second positions. Arcuate segments are arranged in a circumferential relationship about the shaft to define a working surface. First guide rails are slidably secured to the thrust plate, with a first end of each first rail mounted near a first end of one of the segments and a second end extending radially inwardly along the thrust plate. Second guide rails are slidably secured to the actuator, with a first end of each second rail mounted near a second end of one of the segments and a second end extending radially and axially inwardly along the actuator. Each of the guide rail second ends extends radially inward toward the inwardly tapered shaft portion when the actuator is in the first position.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: January 2, 2018
    Assignee: Davian Enterprises, LLC
    Inventor: Robert L. Marcus, Jr.
  • Publication number: 20160031173
    Abstract: A transfer ring of the type having a plurality of shoes arranged in a substantially circular configuration to define an inwardly-facing segmented cylindrical gripping surface, and a shoe for use in such a transfer ring, are disclosed. Each shoe comprises an arcuate interior surface defining a segment of the cylindrical gripping surface. The interior surface of each shoe has a first arcuate edge and an opposite second arcuate edge arranged substantially parallel to one another, and opposite first and second end edges extending between respective ends of said first and second arcuate edges. Each first end edge of each arcuate surface is mounted adjacent the second end edge of an adjacent arcuate surface, and the first end edge of at least one of the arcuate surfaces defines a varied or irregular shape along its arcuate surface.
    Type: Application
    Filed: October 12, 2015
    Publication date: February 4, 2016
    Inventors: Patrick Jones, Ian Smith, William Jones, Robert L. Marcus, JR.
  • Publication number: 20150224729
    Abstract: An improved belt and tread drum incorporating an improved segment is disclosed. Segments are mounted in side-by-side relationship about a central axis for radial movement inwardly and outwardly with respect to the central axis and include arcuate outer surfaces that collectively define an outer circumferential working surface of the drum. The segments each define opposite first and second longitudinal side margins, at least one of the first and second longitudinal side margins defining an irregular longitudinal profile.
    Type: Application
    Filed: February 9, 2015
    Publication date: August 13, 2015
    Inventors: Patrick Jones, Ian Smith, William Jones, Robert L. Marcus, JR.
  • Publication number: 20150224728
    Abstract: An improved belt and tread drum incorporating an improved segment is disclosed. Segments are mounted in side-by-side relationship about a central axis for radial movement inwardly and outwardly with respect to the central axis and include arcuate outer surfaces that collectively define an outer circumferential working surface of the drum. The segments each define an arcuate outer surface defining a circumferential dimension, the outer surface having varied curvature along the circumferential dimension.
    Type: Application
    Filed: February 9, 2015
    Publication date: August 13, 2015
    Inventors: William Jones, Stuart J. Hassell, Robert L. Marcus, JR.
  • Publication number: 20140360673
    Abstract: A tire building drum is disclosed. A thrust plate is mounted at a tapered end of a central shaft. An actuator is slidable along the shaft between first and second positions. Arcuate segments are arranged in a circumferential relationship about the shaft to define a working surface. First guide rails are slidably secured to the thrust plate, with a first end of each first rail mounted near a first end of one of the segments and a second end extending radially inwardly along the thrust plate. Second guide rails are slidably secured to the actuator, with a first end of each second rail mounted near a second end of one of the segments and a second end extending radially and axially inwardly along the actuator. Each of the guide rail second ends extends radially inward toward the inwardly tapered shaft portion when the actuator is in the first position.
    Type: Application
    Filed: June 4, 2014
    Publication date: December 11, 2014
    Applicant: Davian Enterprises, LLC
    Inventor: Robert L. Marcus, JR.
  • Publication number: 20140360672
    Abstract: A multi-piece sealing sleeve is disclosed. The multi-piece sealing sleeve includes annular first and second layers of a substantially air-impermeable material. The first layer has an inner edge sized to surround a base portion of the tire shaping drum. An outer edge of the first layer extends radially outwardly to overlie at least a portion of a radially expandable and collapsible structure defined by the tire shaping drum. The second layer is sized to overlie and establish sealing engagement with at least a portion of the first layer and a bead seat defined by the radially expandable and collapsible structure of the tire shaping drum. The first and second layers cooperate to establish a substantially airtight seal between the tire shaping drum base portion and the bead seat.
    Type: Application
    Filed: August 27, 2014
    Publication date: December 11, 2014
    Inventors: Robert L. Marcus, JR., David Huffstetler
  • Publication number: 20140216660
    Abstract: A transfer ring of the type having a plurality of shoes arranged in a substantially circular configuration to define an inwardly-facing segmented cylindrical gripping surface, and a shoe for use in such a transfer ring, are disclosed. Each shoe comprises an arcuate interior surface defining a segment of the cylindrical gripping surface. The interior surface of each shoe has a first arcuate edge and an opposite second arcuate edge arranged substantially parallel to one another, and opposite first and second end edges extending between respective ends of said first and second arcuate edges. Each first and second end edge defines a substantially non-linear shape with each first and second end edge being shaped for mating engagement with an end edge of an adjacent shoe in the circular configuration.
    Type: Application
    Filed: August 12, 2013
    Publication date: August 7, 2014
    Applicant: Davian Enterprises, LLC
    Inventors: Patrick Jones, Ian Smith, William Jones, Robert L. Marcus, JR.