Other

USA As Represented by Secretary of the Navy

Cubcrafters Group LLC

Vincent H Homer

David G Ullman

Eric Steven Sievert

Daniel Brian Meighan

Patrick J Horgan

Matthew Francis Hardy

Ross Allen Davidson

A hole saw breaching firefighting nozzle may comprise outer and inner housings, a diffuser assembly, hole saw assembly, and drivetrain assembly. The inner housing may be concentrically disposed within the outer housing to create an annular flow region. The diffuser assembly may comprise an end cap coupled to an upstream end of the outer housing. An orifice plate may be coupled to the end cap via linear bearing shafts. A flow control ring may slide forward or rearward between the orifice plate and end cap via linear bearing shafts to control fluid flow communication between the orifice plate and annular flow region. The drivetrain assembly may rotatably couple to the orifice plate. The hole saw assembly may operably couple to the drivetrain assembly. The inner housing may slide forward and rearward. The downstream end of the drivetrain assembly may be in fluid communication with the annular flow region.

Hole saw breaching firefighting nozzle

A powered aerodynamic lift device positioned on a leading edge of an aerodynamic lifting element (ALE), e.g. an airfoil, at least one slat/nacelle/EDF lift assembly comprising: a slat, a two or more nacelles positioned beneath the slat, each nacelle housing an electric ducted fan (EDF). The nacelles are spaced apart to create gaps between the slat and the airfoil for accelerated air to pass through. The lift assembly is under the operational control of and/or further comprises: a master control unit linked to a power source, e.g. batteries to power the EDFs. The device provides the ALE and aircraft with: increased lift and additional thrust during aircraft take offs, climbs, descents, and landings; enhanced low-speed control and reduced loss-of-control during an aircraft's takeoff and landing; improved aircraft handling during gusts and crosswinds. The present invention also comprises an ALE or aircraft with at least one lift assembly installed thereon.

Distributed leading-edge lifting surface slat and associated electric ducted fans for fixed lifting surface aircraft

The Distributed Electric Ducted Fan Wing concept incorporates multiple electric ducted fans on lifting surfaces configured to provide integrated aerodynamics and propulsion resulting in enhanced aerodynamic characteristics and thus aircraft performance. The concept uses a plurality of electric ducted fans (EDFs) to not only provide thrust, but to also blow air across the upper surface of a substantial portion of the lifting surface area increasing lift at little loss in efficiency. Not only can the total lift on the surfaces be enhanced, but the lift distribution managed: to aid in aircraft control; ameliorate the effects of turbulence: reduce shed vortices; mitigate the effects of system failures; eliminate stalls; and compensate for crosswinds. This concept offers the potential for increasing electric airplane efficiency and performance, enhancing Short Takeoff and Landing (STOL) capabilities, improving passenger comfort, and reducing the structural stress and cost of aircraft.

Distributed electric ducted fan wing

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Independence, OR, United States of America

Vincent H Homer