Patents Represented by Attorney Leonard Belkin
  • Patent number: 4162142
    Abstract: An improved process for labeling organic compounds with tritium is carried out by depositing the selected compound on the extensive surface of a porous structure such as a membrane filter and exposing the membrane containing the compound to tritium gas activated by the microwave discharge technique. The labeled compound is then recovered from the porous structure.
    Type: Grant
    Filed: June 29, 1978
    Date of Patent: July 24, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Richard L. E. Ehrenkaufer, Alfred P. Wolf, Wylie C. Hembree
  • Patent number: 4150759
    Abstract: This invention sets forth a double-acting piston, which carries a floating piston, and which is reciprocated in a housing, for feeding coal to a high pressure gasifier system. The housing has a plurality of solids (for instance: coal) in-feeding ports and a single discharge port, the latter port being in communication with a high pressure gasifier system. The double-acting piston sequentially and individually communicates each of the in-feeding ports with the discharge port. The floating piston both seals off the discharge port while each in-feeding port is receiving coal or the like, to prevent undue escape of gas from the gasifier system, and translates in the housing, following a discharge of coal or the like into the discharge port, to return gas which has been admitted into the housing back into the gasifier system.
    Type: Grant
    Filed: December 1, 1977
    Date of Patent: April 24, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Harold S. Bell, Jr.
  • Patent number: 4149931
    Abstract: A poloidal divertor for a toroidal plasma column ring having a set of poloidal coils co-axial with the plasma ring for providing a space for a thick shielding blanket close to the plasma along the entire length of the plasma ring cross section and all the way around the axis of rotation of the plasma ring. The poloidal coils of this invention also provide a stagnation point on the inside of the toroidal plasma column ring, gently curving field lines for vertical stability, an initial plasma current, and the shaping of the field lines of a separatrix up and around the shielding blanket.
    Type: Grant
    Filed: July 16, 1973
    Date of Patent: April 17, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Uffe R. Christensen
  • Patent number: 4148405
    Abstract: This invention provides a housing containing a rotatable coal bucket that is sealed at its ends in the housing with a reciprocal plunger that is sealed in the bucket at one end and has an opposite cone-shaped end that wedges up against a closed end of the bucket, and a method for feeding dry, variable size coal from an ambient atmosphere at low pressure into a high temperature, high pressure reactor between the seals for producing fuel gas substantially without losing any high pressure gas from the reactor or excessively wearing the seals.
    Type: Grant
    Filed: December 1, 1977
    Date of Patent: April 10, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Thomas J. Hathaway
  • Patent number: 4147590
    Abstract: 1. Nuclear propulsion apparatus comprising:A. means for compressing incoming air;B. nuclear fission reactor means for heating said air;C. means for expanding a portion of the heated air to drive said compressing means;D. said nuclear fission reactor means being divided into a plurality of radially extending segments;E. means for directing a portion of the compressed air for heating through alternate segments of said reactor means and another portion of the compressed air for heating through the remaining segments of said reactor means; andF. means for further expanding the heated air from said drive means and the remaining heated air from said reactor means through nozzle means to effect reactive thrust on said apparatus.
    Type: Grant
    Filed: September 1, 1965
    Date of Patent: April 3, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Thomas Szekely
  • Patent number: 4142088
    Abstract: Laser irradiation means for irradiating a target, wherein a single laser light beam from a source and a mirror close to the target are used with aperture means for directing laser light to interact with the target over a broad area of the surface, and for protecting the laser light source.
    Type: Grant
    Filed: January 27, 1976
    Date of Patent: February 27, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Robert L. Hirsch
  • Patent number: 4140228
    Abstract: This invention provides a solids feeder for feeding dry coal to a pressurized gasifier at elevated temperatures substantially without losing gas from the gasifier by providing a lock having a double-acting piston that feeds the coals into the gasifier, traps the gas from escaping, and expels the trapped gas back into the gasifier.
    Type: Grant
    Filed: December 1, 1977
    Date of Patent: February 20, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Thomas J. Hathaway, Harold S. Bell, Jr.
  • Patent number: 4106982
    Abstract: A method of synthesizing H.sup.11 CN involving the proton irradiation of N.sub.2 + H.sub.2 to produce a mixture of .sup.11 CH.sub.4 and NH.sub.3 followed by the reaction of .sup.11 CH.sub.4 and NH.sub.3 to produce H.sup.11 CN and the separation of carrier free H.sup.11 CN.
    Type: Grant
    Filed: April 1, 1974
    Date of Patent: August 15, 1978
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: David R. Christman, Ronald D. Finn, Alfred P. Wolf
  • Patent number: 4100414
    Abstract: A method for measuring the dose-equivalent for exposure to an unknown and/or time varing neutron flux which comprises simultaneously exposing a plurality of neutron detecting elements of different types to a neutron flux and combining the measured responses of the various detecting elements by means of a function, whose value is an approximate measure of the dose-equivalent, which is substantially independent of the energy spectra of the flux. Also, a personnel neutron dosimeter, which is useful in carrying out the above method, comprising a plurality of various neutron detecting elements in a single housing suitable for personnel to wear while working in a radiation area.
    Type: Grant
    Filed: January 19, 1977
    Date of Patent: July 11, 1978
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Carl H. Distenfeld
  • Patent number: 4093858
    Abstract: Longitudinally extending, foraminous cartridge means having a cylindrical side wall forming one flat, circular, tip end surface and an opposite end; an open-ended cavity, and uniformly spaced orifices for venting the cavity through the side wall in the annulus of a plasma ring for uniformly ejecting cesium for coating the flat, circular, surface. To this end, the cavity is filled with a cesium containing substance and attached to a heater in a hollow-discharge duoplasmatron. By coating the flat circular surface with a uniform monolayer of cesium and locating it in an electrical potential well at the end of a hollow-discharge, ion duoplasmatron source of an annular hydrogen plasma ring, the negative hydrogen production from the duoplasmatron is increased. The negative hydrogen is produced on the flat surface of the cartridge and extracted by the electrical potential well along a trajectory coaxial with the axis of the plasma ring.
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: June 6, 1978
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Maasaki Kobayashi, Krsto Prelec, Theodorus J Sluyters
  • Patent number: 4091592
    Abstract: A multi-pane window with improved insulating qualities; comprising a plurality of transparent or translucent panes held in an essentially parallel, spaced-apart relationship by a frame. Between at least one pair of panes is a convection defeating means comprising an array of parallel slats or cells so designed as to prevent convection currents from developing in the space between the two panes. The convection defeating structures may have reflective surfaces so as to improve the collection and transmittance of the incident radiant energy. These same means may be used to control (increase or decrease) the transmittance of solar energy as well as to decouple the radiative transfer between the interior surfaces of the transparent panes.
    Type: Grant
    Filed: April 29, 1977
    Date of Patent: May 30, 1978
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Abraham L. Berlad, Francis J. Salzano, John E. Batey
  • Patent number: 4084209
    Abstract: This invention provides a rotating superconductor magnet for producing a rotating lobed magnetic field, comprising a cryostat; a superconducting magnet in the cryostat having a collar for producing a lobed magnetic field having oppositely directed adjacent field lines; rotatable support means for selectively rotating the superconductor magnet; and means for energizing the superconductor magnet.
    Type: Grant
    Filed: May 21, 1976
    Date of Patent: April 11, 1978
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Sadek K. Hilal, William B. Sampson, Edward F. Leonard
  • Patent number: 4079628
    Abstract: This invention provides a simple, reliable, inexpensive and portable means and method for determining the thyroid dose rate of mixed airborne species of solid and gaseous radioiodine without requiring highly skilled personnel, such as health physicists or electronics technicians. To this end, this invention provides a means and method for sampling a gas from a source of a mixed species of solid and gaseous radioiodine for collection of the mixed species and readout and assessment of the emissions therefrom by cylindrically, concentrically and annularly molding the respective species around a cylindrical passage for receiving a conventional probe-type Geiger-Mueller radiation detector.
    Type: Grant
    Filed: January 27, 1977
    Date of Patent: March 21, 1978
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Carl H. Distenfeld, Joseph R. Klemish, Jr.
  • Patent number: 4075312
    Abstract: This invention relates to a separation means and method for enriching a hydrogen atmosphere with at least one heavy hydrogen isotope by using a solid titaniun alloy hydride. To this end, the titanium alloy hydride containing at least one metal selected from the group consisting of vanadium, chromium, manganese, molybdenum, iron, cobalt and nickel is contacted with a circulating gaseous flow of hydrogen containing at least one heavy hydrogen isotope at a temperature in the range of -20.degree. to +40.degree. C and at a pressure above the dissociation pressure of the hydrided alloy selectively to concentrate at least one of the isotopes of hydrogen in the hydrided metal alloy. The contacting is continued until equilibrium is reached, and then the gaseous flow is isolated while the temperature and pressure of the enriched hydride remain undisturbed selectively to isolate the hydride. Thereafter, the enriched hydrogen is selectively recovered in accordance with the separation factor (S.F.
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: February 21, 1978
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: John Tanaka, James J. Reilly, Jr.
  • Patent number: 4071151
    Abstract: Apparatus and method for feeding powdered coal from a helical ramp into a high pressure, heated, reactor tube containing hydrogen for hydrogenating the coal and/or for producing useful products from coal. To this end, the helical ramp is vibrated to feed the coal cleanly at an accurately controlled rate in a simple reliable and trouble-free manner that eliminates complicated and expensive screw feeders, and/or complicated and expensive seals, bearings and fully rotating parts.
    Type: Grant
    Filed: November 24, 1976
    Date of Patent: January 31, 1978
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Gerald Farber
  • Patent number: 4065351
    Abstract: This invention provides a poloidal divertor for stacking counterstreaming ion beams to provide high intensity colliding beams. To this end, method and apparatus are provided that inject high energy, high velocity, ordered, atomic deuterium and tritium beams into a lower energy, toroidal, thermal equilibrium, neutral, target plasma column that is magnetically confined along an endless magnetic axis in a strong restoring force magnetic field having helical field lines to produce counterstreaming deuteron and triton beams that are received bent, stacked and transported along the endless axis, while a poloidal divertor removes thermal ions and electrons all along the axis to increase the density of the counterstreaming ion beams and the reaction products resulting therefrom. By balancing the stacking and removal, colliding, strong focused particle beams, reaction products and reactions are produced that convert one form of energy into another form of energy.
    Type: Grant
    Filed: March 25, 1976
    Date of Patent: December 27, 1977
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventors: Daniel L. Jassby, Russell M. Kulsrud
  • Patent number: 4065350
    Abstract: This invention provides a vertically stabilized, non-circular (minor) cross-section, toroidal plasma column characterized by an external separatrix. To this end, a specific poloidal coil means is added outside a toroidal plasma column containing an endless plasma current in a tokamak to produce a rectangular cross-section plasma column along the equilibrium axis of the plasma column. By elongating the spacing between the poloidal coil means the plasma cross-section is vertically elongated, while maintaining vertical stability, efficiently to increase the poloidal flux in linear proportion to the plasma cross-section height to achieve a much greater plasma volume than could be achieved with the heretofore known round cross-section plasma columns. Also, vertical stability is enhanced over an elliptical cross-section plasma column, and poloidal magnetic divertors are achieved.
    Type: Grant
    Filed: July 9, 1974
    Date of Patent: December 27, 1977
    Assignee: The United States Government as represented by the Department of Energy
    Inventor: George V. Sheffield
  • Patent number: 4057462
    Abstract: Electromagnetic (E.M.) energy injection method and apparatus for producing and sustaining suprathermal ordered ions in a neutral, two-ion-species, toroidal, bulk equilibrium plasma. More particularly, the ions are produced and sustained in an ordered suprathermal state of existence above the average energy and velocity of the bulk equilibrium plasma by resonant rf energy injection in resonance with the natural frequency of one of the ion species. In one embodiment, the electromagnetic energy is injected to clamp the energy and velocity of one of the ion species so that the ion energy is increased, sustained, prolonged and continued in a suprathermal ordered state of existence containing appreciable stored energy that counteracts the slowing down effects of the bulk equilibrium plasma drag. Thus, selective deuteron absorption may be used for ion-tail creation by radio-frequency excitation alone.
    Type: Grant
    Filed: February 26, 1975
    Date of Patent: November 8, 1977
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventors: Daniel L. Jassby, William M. Hooke
  • Patent number: 4044819
    Abstract: Method and apparatus for the use of hydrides to exhaust heat from one temperature source and deliver the thermal energy extracted for use at a higher temperature, thereby acting as a heat pump. For this purpose there are employed a pair of hydridable metal compounds having different characteristics working together in a closed pressure system employing a high temperature source to upgrade the heat supplied from a low temperature source.
    Type: Grant
    Filed: February 12, 1976
    Date of Patent: August 30, 1977
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventor: James G. Cottingham
  • Patent number: 4043890
    Abstract: This invention provides a CO equilibrium in a device for measuring the total concentration of oxygen impurities in a fluid stream. To this end, the CO equilibrium is produced in an electrochemical measuring cell by the interaction of a carbon element in the cell with the chemically combined and uncombined oxygen in the fluid stream at an elevated temperature.
    Type: Grant
    Filed: June 14, 1976
    Date of Patent: August 23, 1977
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventors: Hugh S. Isaacs, Anthony J. Romano