Abstract: An array of carbon nanotube electron sources to make an integrated array of RF (radio frequency) sources in a single vacuum envelope. The RF sources can be printed circuit traveling wave tubes.

Abstract: A ceramic actuator array is utilized to move a field emitter material for each pixel or subpixel to a level where an electric field causes electrons to be emitted from the emitter material towards a phosphor layer in an anode for that particular pixel. When the actuator is in an off state, then the field emitter material is removed to a different level where electrons are not urged to escape from the field emitter material. Thus, a display can be created using such an actuator array with field emitter materials deposited on each actuator element where each actuator element is individually controlled.

Abstract: An array of carbon nanotube electron sources to make an integrated array of RF (radio frequency) sources in a single vacuum envelope. The RF sources can be printed circuit traveling wave tubes.

Abstract: Embossed microstructures within a substrate are used to create narrow and deep holes within that substrate. A carbon nanotube solution or mixture is then deposited over this substrate with the embossed holes. Shaking or vibrating the substrate will then cause the carbon nanotubes to fall into each of the holes in such a way that all of the nanotubes within a hole will be substantially parallel to the long axis of the hole. This structure can then be combined with a gate electrode and an anode to create a field emission display device.

Abstract: The electric motor contemplated by this invention includes an armature having two opposed faces mounted on a shaft. The armature is mounted on the shaft intermediate of the ends of the shaft. A pair of commutators are mounted on the shaft adjacent to each of the opposed armature faces. Each of the commutators includes a plurality of commutator bars, each of which has its circumferential width offset relative to the circumferential width of the commutator bars on the other commutator. Alternately or in combinatrion, with the commutator bar offset the brushes in operative engagement with each of the commutators are arranged with their circumferential width offset, relative to the circumferential width of the brushes in operative engagement with the opposite commutator. The electric motor can also be provided with a redundancy capability by a circuit arrangement in which one of the commutators is held as a backup in the event of a failure of the windings of the other commutator.

Abstract: A method of manufacturing a fabric-covered article, preferably a belt buckle, and a method for trimming the excess fabric and backing sheet material from a fabric-covered article. Apparatus for manufacturing the fabric-covered article, preferably a belt buckle and for trimming the excess fabric material after the fabric has been glued to the backing sheet, with a buckle-shaped insert sandwiched therebetween.

Abstract: A magnetic particle clutch is provided for use as a clutch or brake. The clutch is particularly useful in a helicopter steering subassembly. The clutch has an inner rotor and an outer drum with a common axis. The inner rotor has a shaft on which the outer drum is journaled. Between the inner rotor and the outer drum is a cylindrical working cavity, which contains magnetic powder. The outer drum has a peripheral coil and has exterior slip rings for actuating the coil. Axial flux lines caused by the actuated coil pass through the magnetic powder, causing a chain-like linking of particles of powder, which results in a shear force and torque between outer drum and inner rotor. In order to prevent shifting of the powder within the cylindrical cavity during tilting of the clutch, a series of conical and radial cavities are disposed at each end of the cylindrical cavity and connecting thereto. The conical and radial cavities at each end act like powder guides.

Abstract: A method of manufacturing a fabric-covered article, preferably a belt buckle, and a method for trimming the excess fabric and backing sheet material from a fabric-covered article. Apparatus for manufacturing the fabric-covered article, preferably a belt buckle and for trimming the excess fabric material after the fabric has been glued to the backing sheet, with a buckle-shaped insert sandwiched therebetween.

Abstract: Walking beam-type conveyor apparatus having a plurality of elongated, spaced stationary members carried by a supporting frame, and a plurality of elongated, spaced longitudinally movable members parallel with and intermediate the stationary members and carried by a longitudinally movable frame. Inflatable fluid bearings support the movable frame on the stationary frame for longitudinal movement of the movable frame and movable members between first and second positions. A selectively actuable valve has a first position in which fluid under a first predetermined pressure is applied to the fluid bearings during movement of the movable frame and movable members in one direction from the first to the second positions thereof, the first pressure being such that the movable members apply sufficient force to the load thereon that the load and movable members are moved in unison in the one direction.

Abstract: A one-piece strain relief bushing includes independent means for grasping the wall surrounding an aperture and open and closeable means for grasping a cord or cable so as to relieve strain while being able to release the cord or cable without having to detach the strain relief bushing from its position in the aperture.