Blue Origin, LLC

Pure Watercraft, Inc.

Christopher M Gil

Zachary Meyer Omohundro

Matthew Michael O'Brien

Mark Featherstone

Frederick W Boelitz

Roger E Ramsey

Kerwin M Loukusa

David M Biggs

Andrew H Rebele

Andrew G Milburn

Ray Miryekta

Nathan Schroeder

A watertight, transom mounted, electric marine sterndrive propulsion drive unit mounted to an external surface of the transom of a marine vessel comprising an integrated electric motor with an output shaft, an intermediate drive shaft mechanically coupled to the electric motor output shaft, one or more propeller shafts mechanically coupled to the drive shaft, and one or more propellers mechanically coupled to the one or more propeller shafts.

Sternboard drive for marine electric propulsion

The present technology is directed generally to electric marine propulsion systems with drive trains, and associated systems and methods. In representative embodiments, the disclosed technology includes pre-assembled transmission cartridges, gear reduction planetary gears, and/or component support arrangements that can increase the life of the system and/or reduce manufacturing costs.

Electric marine propulsion systems with drive trains, and associated systems and methods

A contoured roller set and associated systems and methods are disclosed herein. A male roller having a convex surface and a pair of female rollers each having a concave surface can receive a generally thin sheet of material and impart a doubly-curved shape to the sheet. The convex and concave surfaces of the male and female rollers can have a radius of curvature chosen to match a radius of curvature of the sheet of material. The rollers are positioned and shaped to urge the sheet between the female rollers to cause the sheet to curve toward the male roller.

Contoured roller system and associated methods and resulting articles of manufacture

Launch vehicles with fixed and deployable deceleration surfaces and associated systems and methods are disclosed. A system in accordance with a particular embodiment includes a launch vehicle that has a first end and a second end generally opposite the first end, and is elongated along a vehicle axis extending between the first and second ends. The vehicle carries an exposed outwardly facing surface having a first region positioned or positionable to have a first cross-sectional area generally normal to the vehicle axis toward the first end of the vehicle, and a second region positioned or positionable to have a second cross-sectional area generally normal to the vehicle axis toward the second end of the vehicle. The first cross-sectional area is less than the second cross-sectional area. The system can further include a propulsion system carried by the launch vehicle and having at least one nozzle positioned toward the first end of the vehicle to launch the launch vehicle. In a further particular embodiment, the exposed surface can include a deployable flare surface that is positioned toward the forward section of the vehicle and is stowed during an ascent phase of the vehicle. During descent, the deployable flare surface can pivot outwardly to slow the vehicle down for a tail-down landing. Systems is accordance with other embodiments include launch vehicles with fuel tanks shaped to control the motion of the center of gravity of fuel in the tanks as the fuel level in the tank changes.

Launch vehicles with fixed and deployable deceleration surfaces, and/or shaped fuel tanks, and associated systems and methods

Modular friction welding heads and associated systems and methods are disclosed herein. A friction welding system in accordance with a particular embodiment includes a carrier fixture positioned to carry a workpiece, a head support positioned proximate to the carrier fixture, and a modular friction welding head releasably carried by the head support. At least one of the carrier fixture and the head support can have a guide structure with a constrained motion path positioned to guide relative motion between the modular friction welding head and the carrier fixture. A controller can be operatively coupled to the modular friction welding head and programmed with instructions to control the operation of the friction welding head.

Growing community of inventors

Kent, WA, United States of America

Christopher M Gil