Textron Innovations Inc.

Bell Helicopter Textron Inc.

Pallette Stone Corporation

Other

David A Elliott

Frank B Stamps

Scott David Poster

Brent Chadwick Ross

Mark Loring Isaac

Walter West Riley

Charles J Kilmain

Ron Measom

Gary Cope

Sherman S Lin

Christopher D Weed

Scott Raymond Gardner

Brian Stanley Modrzejewski

Doug Mueller

Brad Jeffrey Ekstrom

Bobby A Collins

Gary A Cope

Walter Riley

Mark L Isaac

Brent C Ross

Scott D Poster

Frank Bradley Stamps

Bobby Collins

Storage tanks, for example, underground septic tanks, and their methods of fabrication are provided. The tanks include a substantially liquid impermeable plastic vessel having a top, a bottom, and sides; a concrete container encasing and retaining the plastic vessel, the concrete container contacting the bottom and at least partially contacting the sides of the plastic vessel; and at least one opening for receiving effluent, for example, waste effluent, into the plastic vessel. The methods of fabricating the tanks include positioning a plastic vessel into an enclosure; introducing concrete into the enclosure about the plastic vessel; allowing the fluid concrete to cure to provide a substantially solid concrete container about the plastic vessel; and removing the plastic vessel having a concrete container from the enclosure. Vessel shape retaining devices are also disclosed. Aspects of the invention are uniquely adapted to underground storage.

Underground storage tank

A system and method to transfer heat energy through a composite structure. The system includes a heat pipe extending through a thickness of the composite material. The method includes extending a heat pipe through the composite material from a first surface exposed to the heat energy to a second surface exposed to airflow.

Composite top case with embedded heat pipes

An interconnect drive system for an aircraft has a driveline and clutch control system. The driveline comprises a shaft for each propulsion assembly, each shaft for transferring torque to and from the associated propulsion assembly, and a clutch operably coupling the shafts and configured for selective engagement. The clutch is capable of transferring a first amount of torque between the shafts while engaged and a second amount of torque between the shafts while disengaged. The system also has a clutch control system, comprising a computer operably connected to the clutch for controlling operation of the clutch and sensors for sensing torque applied to the driveline, output from the sensors being communicated to the computer. The computer commands operation of the clutch in response to the output from the sensors, the clutch being commanded to disengage to relieve a transient torque imbalance in the driveline.

Interconnect drive system

Underground septic tank

A lubrication system includes a reserve housing configured to retain a lubrication fluid. A supply line in fluid communication with the reserve housing is configured to provide pressurized lubrication fluid to the reserve housing. An overflow tube has an overflow port, the overflow tube being configured to prevent the volume of the lubrication fluid from exceeding a certain amount. A metering jet is configured to allow the lubrication fluid to flow from the reserve housing onto a component, such as a bearing, in the gearbox at a predetermined rate. The metering jet provides flow of the lubrication fluid onto the bearing even when the supply line no longer provides pressurized lubrication fluid to the reserve housing.

Gearbox with passive lubrication system

An aircraft rotor mast assembly that includes a composite rotor mast and a rotor housing surrounding the rotor mast. The rotor mast includes a first end, a second end, and a length therebetween. The rotor mast includes a plurality of circular openings proximate the first end to accommodate bolts for the fixation of a rotor hub to the rotor mast. The second end of the rotor mast includes a flange, wherein the flange defines a plurality of openings therethrough to accommodate the attachment of the rotor mast to a transmission.

Rotor mast assembly

In one particular embodiment, a method for making a fiber-reinforced, composite article having an internal passageway includes providing a layup tool, fiber placing a base layup onto the layup tool, and generating a groove in the base layup. The method further includes placing a mandrel in the groove, fiber placing a top layup onto the base layup and the mandrel, curing the base layup and the top layup, and removing the mandrel from the base layup and the top layup. In another particular embodiment, the mandrel is replaced with a non-removable tube.

Method of making a composite article having an internal passageway

The system of the present application includes an engine and pylon arrangement for a tilt rotor aircraft in which the engine is fixed in relation to a wing portion of the aircraft, while the pylon is rotatable. The pylon supports a rotor hub having a plurality of rotor blades. Rotation of the pylon allows the aircraft to selectively fly in a helicopter mode and an airplane mode, as well as any combination thereof.

Tilt rotor aircraft with fixed engine arrangement

Growing community of inventors

Azle, TX, United States of America

David A Elliott