Abstract: A process for removing metals from a waste including uranium and a second metal comprising dissolving the uranium and the second metal in a first aqueous solution, removing the dissolved uranium from the first aqueous solution by redissolving in an organic solvent, stripping the uranium from the organic solvent by redissolving in a second aqueous solution, precipitating the uranium from the second aqueous solution, and removing the second metal from the first aqueous solution.
Type:
Grant
Filed:
August 31, 1993
Date of Patent:
October 11, 1994
Assignee:
IC Technologies
Inventors:
John Litz, Nicholas J. Lombardo, Robert L. Schwartz
Abstract: An integrated electrostatically-controlled micromechanical gyroscope with a rotor encompassed within a rotor cavity and electrostatically spun within the cavity. The gyroscope includes a plurality of axial electrostatic rotor actuators above and below the rotor for controlling the axial and tilt position of the rotor within the cavity, and a plurality of radial electrostatic actuators spaced circumferentially around the rotor for controlling the radial and tilt position of the rotor within the cavity. The position of the rotor within the cavity is then resolved to determine the external forces acting on the rotor.
Type:
Grant
Filed:
August 18, 1992
Date of Patent:
October 11, 1994
Assignee:
SatCon Technology Corporation
Inventors:
Timothy Hawkey, Richard Torti, Bruce Johnson
Abstract: A microwave resonator accelerometer including a microwave resonant cavity having a predetermined resonant frequency; the cavity including a flexible portion; a proof mass fixed to the flexible portion for changing the geometry and establishing a new resonant frequency of the cavity in response to an acceleration force on the proof mass; a microwave frequency signal at or approximately at the predetermined resonant frequency coupled to the cavity; and a discrimination circuit, responsive to the reflected microwave signal from the cavity, for discriminating a shift in the predetermined resonant frequency of the cavity to a new resonant frequency effected by the change in geometry of the cavity resulting from the acceleration force on the proof mass.
Abstract: A one-handed knife system in which a knife having a blade instantly deployed by pulling on the heel section thereof includes a separable tether which separates under a force greater than the force required to deploy the blade.
Abstract: An explosively forged elongated penetrator including a liner having a central section, an intermediate section and a peripheral section; the axial velocity of the sections being approximately equal; the axial thicknesses of the sections decreasing from the central to the peripheral section; the radial velocity increasing from the central to the peripheral section; and the line profile angle decreasing from the central to the peripheral section, to define an explosively driven, inwardly directed, centrally focused force for forging the penetrator from the liner substantially independently of the axial velocities.
Abstract: A system and method for converting inoperative sentence elements into operative elements in which a set of grammar rules for substituting sentence elements with different elements is established. A sequential comparison between each grammar rule and the sentence elements is then accomplished to find a match between a grammar rule and one or more contiguous sentence elements. A substitution of the matched element for the different elements from the grammar rule is then accomplished. Such sequential comparison and substitution is continued for the entire series of sentence elements to fully convert the sentence to operative elements.
Type:
Grant
Filed:
August 7, 1991
Date of Patent:
September 20, 1994
Assignee:
Occam Research Corporation
Inventors:
George W. Potts, Sr., Patrick Breen, Robert Paushter
Abstract: A reduced horizontal stiffness vibration isolation system including a gas spring assembly with a load support interface portion and pivot device externally coupled to the gas spring assembly for allowing the gas spring assembly to pivot when either the load support interface portion or the pivot device is displaced to reduce the horizontal stiffness of the gas spring assembly.
Abstract: A graphic tide indicator system in which time intervals between a plurality of corrective tides are stored, the temporal position in the current time interval is determined, and a visual display is employed to display the relative water depth.
Abstract: A subsea fluid coupling includes self-sealing male and female couplers, and an elastic O-ring seal accommodated in the female coupler for sealing around the male coupler. The leading pheriphery of the male coupler is provided with ridges and channels which respectively support the seal and allow fluid flow pass the seal during withdrawal of the male coupler.
Abstract: A dual-wavelength laser system with intracavity, sum-frequency mixing including a bifurcated resonant cavity having a first arm, a second arm and a common arm; a first laser element located in the first arm for providing a first input laser beam of a first wavelength; a second laser element located in the second arm for providing a second input laser beam of a second wavelength; a nonlinear-mixing element in the common arm; and a beam combining device for combining the first and second beams and submitting them to the nonlinear-mixing element for providing an output laser beam of a third wavelength whose energy is the sum of the energy of the input laser beams.
Abstract: A ferroelectric space charge capacitor memory device includes a ferroelectric dielectric having a plurality of polarization states; a first electrode attached to the dielectric and establishing a first electric contact potential between the first electrode and the dielectric and a second electrode spaced from the first electrode and attached to the dielectric and establishing a second electric contact potential between the second electrode and the dielectric for generating a differential internal bias voltage on the dielectric which defines a number of capacitive levels, one representative of each of a corresponding number of polarization states and produces an electrical field which is less than the coercive electric field of the dielectric.
Type:
Grant
Filed:
May 25, 1993
Date of Patent:
August 30, 1994
Assignee:
The Charles Stark Draper Laboratories, Inc.
Abstract: A process for evenly seating a woodwind instrument tone hole sealing pad in the pad cup, and the tone hole sealing pad for accomplishing this even seating. The process contemplates placing the pad on the tone hole rim, applying a force to the rim to pull it against the tone hole rim, providing a substance between the pad and the cup for positioning the pad in the cup, and contacting the cup to the pad to position the pad in the cup while the pad is seated against the tone hole rim to provide an even seating cup pad assembly.
Abstract: A receptacle display includes a receptacle for holding a liquid; display means mounted with the receptacle; and sensing means sealingly mounted with the receptacle for sensing the condition of the liquid in the receptacle and actuating the display means when a predetermined condition of the liquid is sensed.
Abstract: Optical long-path gas monitoring apparatus (2) comprising means (4) for providing a radiation beam, a modulator (10) for modulating the wavelength of the radiation beam such as to produce amplitude modulation of the beam in the presence of the gas being monitored, a radiation detector (12) for conversion of the radiation beam into an electrical signal, and a signal processor (PSD 1,PSD 2) for demodulating the electrical signal to provide a signal dependent upon the gas.
Type:
Grant
Filed:
March 31, 1993
Date of Patent:
August 16, 1994
Assignee:
Secretary of State for Trade Industry
Inventors:
Roger H. Partridge, Robert H. Bradsell, Peter T. Woods
Abstract: A surgical smoke evacuator synchronizing system includes a smoke evacuator system; a smoke or debris generating surgical device having a power cord with a plug for connection to a power source; and a monitoring system including a first receptacle for receiving the plug of the power cord; a cable connected to the first receptacle having a number of lines and having a second plug for connection to a power source receptacle; a current sensing loop for receiving at least one line of the cable; a detector circuit for sensing the current level in the cable; and a control device, responsive to a level of current in the cable, representing that the surgical device is operating, for enabling the smoke evacuator system and responsive to a level of current in the cable representing that the surgical device has completed operating for disabling the smoke evacuator system.
Abstract: An integrated liquid crystal acoustic transducer includes a substrate chip having a through hole; a movable plate electrode; means for resiliently mounting the movable plate electrode across the hole in the substrate chip; a perforated electrode spaced from the movable plate electrode and mounted across the hole in the substrate chip; and a liquid crystal medium, disposed between the electrodes, whose polarization vector orientation changes in response to electrical and acoustic input to reciprocally convert between electric and acoustic energy.
Type:
Grant
Filed:
October 28, 1992
Date of Patent:
August 2, 1994
Assignee:
The Charles Stark Draper Laboratory Inc.
Abstract: A portable constructional element (4) comprising a foamed cementitious material (8) in an outer plastics covering (10), the foamed cementitious material (8) being such that it has been introduced into the outer covering (10) in a wet state and has set in the outer covering (10) such that the foamed cementitious material (8) is of a substantially uniform character throughout the constructional element, and such that the outer covering (10) forms an integral part of the portable constructional element (4).
Abstract: A self-gripping wire torquer including a sleeve body, a clamping device biased for automatically grasping the wire and releasably fixing the sleeve body in place on the wire, and a release mechanism for temporarily releasing the clamp means to slide and reposition the torquer along the wire.
Abstract: A film positioning system for dental X-ray procedures including a plurality of film carriers each including a film holder on one end and an attachment rod extending therefrom; and an X-ray tube aiming device including a plurality of distinct attachment rod holders for separately positioning each film carrier in the proper orientation with respect to the X-ray tube.
Abstract: A system and method for emulating a mouse input device with a touchpad input device having a drag switch and touch device in which the direction of movement of the touch device across the touchpad surface is determined, a display cursor is caused to move in the same relative direction as the direction determined by the touch device, and the cursor movement is continued in that same relative direction either in or out of a drag mode, even after the touch device stops moving so as to allow the cursor to be moved a greater distance than the touch device.