Abstract: Spring-loaded linkage contained in a housing attached to the control stick of an aircraft. One member of the linkage is an arm having an end projecting from the housing and forming a hand grip through which the pilot controls the aircraft. The linkage provides a resisting force on the arm which prevents it from rotating relative to the control stick during normal flight maneuvers. However, when the control stick is pulled to full aft stop and additional pull equal to the spring break-out force is applied, the resisting force suddenly decreases, and the arm and grip rotate aft a discrete displacement relative to the control stick. This displacement actuates a g-limiter override which permits the aircraft to exceed set limits on its normal acceleration. The discrete displacement also provides the pilot with a tactile signal that the override has been actuated. The g-limiter override condition can be maintained by a pull on the grip substantially less than the spring break-out force.

Abstract: Apparatus for continuously orienting an ultrasonic transducer so that the emitted ultrasonic waves remain at a normal angle of incidence to the opposing surface of an object while the transducer is being moved laterally across the surface in order to inspect the subsurface composition of the object. The sensor casing which contains the ultrasonic transducer pivots about one end of a tubular support arm, while the other end of the support arm pivots about a gearbox casing. A drive shaft passes through the support arm and has a miter gear on each end. One miter gear is engaged with a miter gear attached to the gearbox casing, and the other is engaged with a miter gear attached to the sensor casing so that the rotation of the drive shaft causes the simultaneous rotation of the support arm about the gearbox casing and, in the opposite direction, the rotation of the sensor casing about the support arm. The gearbox casing is attached to a carriage and has the freedom to roll relative to it.

Abstract: An edge situated in high speed flow of medium is cooled by a tubular heat pipe having a longitudinal axis situated parallel to the edge. The exterior surface of the evaporator section of the heat pipe forms the edge. The heat pipe contains a working fluid existing in both gaseous and liquefied states. Heat input along the edge evaporates working fluid in the liquid state located in the evaporator section, and the heat is transferred transversely across the longitudinal axis of the heat pipe by the flow of vapor to the condenser section. The vapor condenses in the condenser section and releases its latent heat of vaporization. The condensate flows to the evaporator section by means of wicks composed of capillary material. The heat released into the walls of the condenser section is transferred through the walls by conduction and into another heat transfer device, for example, an active cooling apparatus or the evaporator sections of abutting heat pipes of conventional tubular configuration.

Abstract: An apparatus for preventing the egress of anaesthetic gas from the open end of an anaesthesia tube during periods when the anaesthetic gas is flowing but it is not being administered to a patient. An obturator post is either solid or has an axial bore which communicates with an exhaust system. The obturator post slideably and sealably engages the open end of the anaesthesia tube. The obturator post may be either rigidly attached to a surface of the anaesthetist's machine, or held captive thereto by a chain.

Abstract: A measuring apparatus for determining the rotational velocity of a solid erical or cylindrical object by propagating an acoustic wave through the object. The inward face of the surface of the object is used to reflect the wave, thereby causing it to make multiple transits through the object. Multiple transits provide a large time factor which allows the apparatus to achieve a high degree of sensitivity in measuring small rate changes and low rotation rates.

Abstract: An apparatus which uses suction to draw radioactive particles through a high efficiency filter and contains such filtered particles in a disposable bladder-filter unit for subsequent disposal. The bladder-filter unit prevents the escape of filtered radioactive particles to the ambient atmosphere during the operation of the apparatus and also during disposal, as well as preventing the radioactive contamination of the remainder of the apparatus.

Abstract: A system for separating fluids from each other. The mixture of fluids to be separated is injected into a cylindrical tank so as to cause the fluids to rotate and thereby accelerate their separation into strata. A float valve at the top of the tank allows lighter fluids to be exhausted while a second float valve at the bottom of the tank provides for the exhaust of heavier fluids. In the event of an oil spill on an open body of water, the present invention would provide for the clean up of the oil slick by separating it from the water.

Abstract: A system to maintain the pressure within a pressurized container within dgn limits and to vent undesirable fluids to the ambient atmosphere. A float floats near the top of the container on the surface of oil supplied to the container by a pressure compensator and is seated to seal an opening as long as the oil level remains above a given level. Sufficient displacement of the oil by gases generated within the container will unseat the float to allow the venting of such gases to the ambient atmosphere. Another opening is also located in the top of the container and is sealed by a weighted lid. If the pressure in the container exceeds the local ambient atmospheric pressure by an amount that would otherwise rupture the container, the lid will be forced open to allow the relief of the excess pressure. When seated, another float seals an opening located in the bottom of the container. This float will float on atmospheric fluid which accumulates in the bottom of the container.

Abstract: A tube with weights slidably located inside and apparatus to remotely conl their position and thereby change the vehicle's center of gravity. The tube is rigidly attached to the vehicle with its centerline running fore and aft if trim is to be controlled or running athwartships if the system is to be used to control list.

Abstract: A superconducting microwave engine that achieves mechanical to microwave rgy conversion or microwave to mechanical energy conversion. Such is accomplished by employing a superconducting resonator to increase the decay time of the microwaves inside the resonator and thereby provide the resonator with sufficient time to adiabatically deform and change its eigenfrequency so as to effect a change in the frequency and corresponding energy state of such microwaves in accordance with the Boltzmann-Ehrenfest Theorm. This invention may be in the form of a cylindrical cavity and piston combination, a cavity and vibrating diaphragm combination, or a cylindrical cavity and concentric rotor combination.

Abstract: A superconducting microwave engine that achieves mechanical to microwave rgy conversion or microwave to mechanical energy conversion. Such is accomplished by employing a superconducting resonator to increase the decay time of the microwaves inside the resonator and thereby provide the resonator with sufficient time to adiabatically deform and change its eigenfrequency so as to effect a change in the frequency and corresponding energy state of such microwaves in accordance with the Boltzmann-Ehrenfest Theorm. This invention may be in the form of a cylindrical cavity and piston combination, a cavity and vibrating diaphragm combination, or a cylindrical cavity and concentric rotor combination.

Abstract: A functional ankle for a prosthetic limb comprising an elastomeric member and a flexible member. The elastomeric member separates the prosthetic foot from the shin. The elastomeric member allows the foot to move relative to the shin while providing plantar/dorsi flexion, inversion/eversion and rotational motion singularly or in combination. The foot and shin are connected by the flexible member which allows relative motion while providing structural integrity.

Abstract: A superconducting microwave engine that achieves mechanical to microwave energy conversion or microwave to mechanical energy conversion. Such is accomplished by employing a superconducting resonator to increase the decay time of the microwaves inside the resonator and thereby provide the resonator with sufficient time to adiabatically deform and change its eigenfrequency so as to effect a change in the frequency and corresponding energy state of such microwaves in accordance with the Boltzmann-Ehrenfest Theorem. This invention may be in the form of a cylindrical cavity and piston combination, a cavity and vibrating diaphragm combination, or a cylindrical cavity and concentric rotor combination.