Patents Assigned to Sealegs International Limited
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Patent number: 7520239Abstract: Leg assembly (10) for an amphibious vehicle comprises leg (11) and hydraulic ram (33) each pivotally mounted, above the waterline, externally to hull (17). The line of action of ram (33) is such that it is optimal (eg less than 30 DEG) with respect to the tangent to the arc of travel of leg (11) when it is lowered or raised. Leg (11) carries wheel (13) which may be swivelled for steering using hydraulic linear actuator (15). Assembly (10) is compact, light, yet capable of lifting the vehicle off the ground.Type: GrantFiled: September 27, 2004Date of Patent: April 21, 2009Assignee: Sealegs International LimitedInventor: Maurice John Bryham
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Patent number: 7314395Abstract: An amphibious vehicle (1), in the form of an inflatable boat (2) has a self propelled and steerable retractable undercarriage system, enabling the vehicle to enter and exit the water under its own power. The swing of the wheels and their supporting struts (3) & (4) occurs external to the hull of the vehicle. A steerable nose leg (3) is raised or lowered by an actuator situated inside the boat. Stowage is accomplished within the lines of an inflatable craft by the incorporation of fibreglass fairings (5) & (6) sized to match the main inflated tubes (7). Power is provided to the back wheels (4) via an internal drive train within the legs (4). All terrain balloon type tires are used to enable the boat to travel over a variety shoreline terrain. A steering system engages with the front wheel when the wheel is in its extended position. Motive power is provided by a separate aircooled motor.Type: GrantFiled: December 6, 2005Date of Patent: January 1, 2008Assignee: Sealegs International LimitedInventor: Maurice John Bryham
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Publication number: 20060105644Abstract: An amphibious vehicle (1), in the form of an inflatable boat (2) has a self propelled and steerable retractable undercarriage system, enabling the vehicle to enter and exit the water under its own power. The swing of the wheels and their supporting struts (3) & (4) occurs external to the hull of the vehicle. A steerable nose leg (3) is raised or lowered by an actuator situated inside the boat. Stowage is accomplished within the lines of an inflatable craft by the incorporation of fibreglass fairings (5) & (6) sized to match the main inflated tubes (7). Power is provided to the back wheels (4) via an internal drive train within the legs (4). All terrain balloon type tyres are used to enable the boat to travel over a variety shoreline terrain. A steering system engages with the front wheel when the wheel is in its extended position. Motive power is provided by a separate aircooled motor.Type: ApplicationFiled: December 6, 2005Publication date: May 18, 2006Applicant: SEALEGS INTERNATIONAL LIMITEDInventor: Maurice Bryham
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Patent number: 7004801Abstract: An amphibious vehicle (1), in the form of an inflatable boat (2) has a self propelled and steerable retractable under-carriage system, enabling the vehicle to enter and exit the water under its own power. The swing of the wheels and their supporting struts (3) & (4) occurs external to the hull of the vehicle. A steerable nose leg (3) is raised or lowered by an actuator situated inside the boat. Stowage is accomplished within the lines of an inflatable craft by the incorporation of fibreglass fairings (5) & (6) sized to match the main inflated tubes (7). Power is provided to the back wheels (4) via an internal drive train within the legs (4). All terrain balloon type tyres are used to enable the boat to travel over a variety shoreline terrain. A steering system engages with the fornt wheel when the wheel is in its extended position. Motive power is provided by a separate aircooled motor.Type: GrantFiled: December 17, 2002Date of Patent: February 28, 2006Assignee: Sealegs International LimitedInventor: Maurice John Bryham
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Patent number: D505907Type: GrantFiled: June 23, 2003Date of Patent: June 7, 2005Assignee: Sealegs International LimitedInventor: Maurice John Bryham
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Patent number: D522441Type: GrantFiled: May 26, 2005Date of Patent: June 6, 2006Assignee: Sealegs International LimitedInventor: Maurice John Bryham
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Patent number: D897237Type: GrantFiled: August 16, 2017Date of Patent: September 29, 2020Assignee: SEALEGS INTERNATIONAL LIMITEDInventor: Maurice John Bryham