Patents by Inventor Yann Le Jeune
Yann Le Jeune 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).
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Patent number: 9242700Abstract: A wakesurfing boat for creating a wave suitable for surfing in the wake of the boat. A length to beam (L/B) ratio of 3.21 combined with a rounded hull bottom proximate the transom minimizes losses in the wake wave. Elliptical arcuate portions extending from starboard and port points on the transom to selected positions on the respective starboard and port bulwarks further minimize losses in the wake wave. The hull bottom defines an M-shaped portion and a V-shaped portion. A propulsion system includes an exhaust pipe projecting from the hull bottom below the waterline, with an exhaust opening forward of the transom. A propeller has a hub and at least three blades. A blade area, defined by a sum of the area of the blades, is larger than 70% of a disk area, defined by a sum of the hub and the blades.Type: GrantFiled: April 1, 2015Date of Patent: January 26, 2016Assignee: 3MADMENInventors: Albert Viviani, Arye Laniado, Joshua Laniado, Yann Le Jeune, Pietro Lagioia, Christer Widmark
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Patent number: 9238499Abstract: A wakesurfing boat for creating a wave suitable for surfing in the wake of the boat. A length to beam (L/B) ratio of 3.21 combined with a rounded hull bottom proximate the transom minimizes losses in the wake wave. Elliptical arcuate portions extending from starboard and port points on the transom to selected positions on the respective starboard and port bulwarks further minimize losses in the wake wave. The hull bottom defines an M-shaped portion and a V-shaped portion. A propulsion system includes an exhaust pipe projecting from the hull bottom below the waterline, with an exhaust opening forward of the transom. A propeller has a hub and at least three blades. A blade area, defined by a sum of the area of the blades, is larger than 70% of a disc area, defined by a sum of the hub and the blades.Type: GrantFiled: June 22, 2015Date of Patent: January 19, 2016Assignee: 3MADMENInventors: Albert Viviani, Arye Laniado, Joshua Laniado, Yann Le Jeune, Pietro Lagioia, Christer Widmark
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Patent number: 8857364Abstract: A wakesurfing boat and a hull for a wakesurfing boat. The hull includes a bottom having a preselected length extending from a bow to a stern. The bottom includes a central ridge and port and starboard ridges extending below respective port and starboard bulwarks to define a substantially M-shaped bottom with concave portions to port and starboard of the central ridge. Port and starboard sponsons extend below the port and starboard bulwarks proximate the stern. A trim wedge projects below the stern. Two rounded stern portions are provided proximate the stern. In a dynamic surfing mode, with selectively-fillable ballast tanks partially or fully flooded, water flowing through the port and starboard concave portions, combined with the ballast, increases resistance to the hull, resulting in a larger wake wave. Water passing around the structural features proximate the stern is directed toward a convergent zone in the wake, resulting in an improved wake wave shape.Type: GrantFiled: October 23, 2013Date of Patent: October 14, 2014Assignee: 3MADMENInventors: Albert Viviani, Arye Laniado, Joshua Laniado, Yann Le Jeune, Pietro Lagioia
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Publication number: 20140083346Abstract: A wakesurfing boat and a hull for a wakesurfing boat. The hull includes a bottom having a preselected length extending from a bow to a stern. The bottom includes a central ridge and port and starboard ridges extending below respective port and starboard bulwarks to define a substantially M-shaped bottom with concave portions to port and starboard of the central ridge. Port and starboard sponsons extend below the port and starboard bulwarks proximate the stern. A trim wedge projects below the stern. Two rounded stern portions are provided proximate the stern. In a dynamic surfing mode, with selectively-fillable ballast tanks partially or fully flooded, water flowing through the port and starboard concave portions, combined with the ballast, increases resistance to the hull, resulting in a larger wake wave. Water passing around the structural features proximate the stern is directed toward a convergent zone in the wake, resulting in an improved wake wave shape.Type: ApplicationFiled: October 23, 2013Publication date: March 27, 2014Applicant: 3MADMENInventors: Albert Viviani, Arye Laniado, Joshua Laniado, Yann Le Jeune, Pietro Lagioia
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Patent number: 8590475Abstract: A wakesurfing boat and a hull for a wakesurfing boat. The hull includes a bottom having a preselected length extending from a bow to a stern. The bottom includes a central ridge and port and starboard ridges extending below respective port and starboard bulwarks to define a substantially M-shaped bottom with concave portions to port and starboard of the central ridge. Port and starboard sponsoons extend below the port and starboard bulwarks proximate the stern. A trim wedge projects below the stern. Two rounded stern portions are provided proximate the stern. In a dynamic surfing mode, with selectively-fillable ballast tanks partially or fully flooded, water flowing through the port and starboard concave portions, combined with the ballast, increases resistance to the hull, resulting in a larger wake wave. Water passing around the structural features proximate the stern is directed toward a convergent zone in the wake, resulting in an improved wake wave shape.Type: GrantFiled: March 15, 2013Date of Patent: November 26, 2013Assignee: 3MADMENInventors: Albert Viviani, Arye Laniado, Joshua Laniado, Yann Le Jeune, Pietro Lagioia
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Publication number: 20130145978Abstract: A wakesurfing boat includes a hull. A bottom of the hull defines a W-shape in cross-section, the W-shape including a central inverted V-shaped portion. A ballast system includes a plurality of sets of ballast tanks. The boat has a plurality of modes: a cruising mode with ballast tanks empty, a first portion of the bottom in contact with the water, a stern-down trim ?1; a ballasted static mode with ballast tanks filled with ballast water, the hull displacing more water, a larger portion of the bottom in contact with the water, a bow-down trim ?2; and a dynamic surfing mode with ballast tanks filled with ballast water, an intermediate portion of the bottom in contact with the water, and an intermediate trim ?3. A wake wave, generated in the dynamic surfing mode is larger than a wake wave generated in the cruising mode.Type: ApplicationFiled: December 9, 2011Publication date: June 13, 2013Inventors: Albert VIVIANI, Arye Laniado, Joshua Laniado, Yann Le Jeune, Pietro Lagioia
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Patent number: D709023Type: GrantFiled: November 25, 2013Date of Patent: July 15, 2014Assignee: 3MadMenInventors: Albert Viviani, Arye Laniado, Joshua Laniado, Yann Le Jeune, Pietro Lagioia