Patents by Inventor Martin Kadner
Martin Kadner has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 9047993Abstract: A method and an arrangement for producing spherical fuel cores and/or breeder material cores by dripping a pouring solution containing uranyl nitrate and a solution containing at least one auxiliary agent into an ammoniacal precipitation bath to form microspheres, aging, washing, drying, and thermally treating the microspheres.Type: GrantFiled: November 23, 2009Date of Patent: June 2, 2015Assignee: NUKEN TECHNOLOGIES GMBHInventors: Werner Heit, Martin Kadner, Georg Braehler, Karl Froschauer
-
Patent number: 8535579Abstract: A method for the production of spherical combustible or fertile material particles from an oxide of the group of the heavy metals uranium, plutonium, or mixtures thereof. For this purpose, the process steps of producing a base solution of the nitrates of the heavy metal(s), adding at least one first reagent in order to adjust the viscosity of the solution, dropping the solution to form microspheres, at least superficially solidifying the microspheres in an atmosphere containing ammonia, collecting the microspheres in a solution containing ammonia, and subsequent washing, drying and thermal treatment are carried out, where at least one of urea, ammonium carbonate, ammonium hydrogen carbonate, ammonium cyanate, and biuret are added to the base solution before adding the first reagent. The solution thus prepared is heated to a temperature T where 80° C.?T<Ts and where Ts=boiling temperature of the solution, and is maintained at the temperature over a time period t where 2 h?t?8 h.Type: GrantFiled: May 20, 2008Date of Patent: September 17, 2013Assignee: Nukem Technologies GmbHInventors: Werner Heit, Martin Kadner, Georg Braehler, Karl Froschauer, Guo Wenli, Liang Tonxiang, Tang Chunhe, Yaping Tang
-
Publication number: 20110285040Abstract: A method and an arrangement for producing spherical fuel cores and/or breeder material cores by dripping a pouring solution containing uranyl nitrate and a solution containing at least one auxiliary agent into an ammoniacal precipitation bath to form microspheres, aging, washing, drying, and thermally treating the microspheres.Type: ApplicationFiled: November 23, 2009Publication date: November 24, 2011Applicant: NUKEM TECHNOLOGIES GMBHInventors: Werner Heit, Martin Kadner, Georg Braehler, Karl Froschauer
-
Publication number: 20100077657Abstract: A method for the production of spherical combustible or fertile material particles from an oxide of the group of the heavy metals uranium, plutonium, or mixtures thereof. For this purpose, the process steps of producing a base solution of the nitrates of the heavy metal(s), adding at least one first reagent in order to adjust the viscosity of the solution, dropping the solution to form microspheres, at least superficially solidifying the microspheres in an atmosphere containing ammonia, collecting the microspheres in a solution containing ammonia, and subsequent washing, drying and thermal treatment are carried out, where at least one of urea, ammonium carbonate, ammonium hydrogen carbonate, ammonium cyanate, and biuret are added to the base solution before adding the first reagent. The solution thus prepared is heated to a temperature T where 80° C.?T<Ts and where Ts=boiling temperature of the solution, and is maintained at the temperature over a time period t where 2 h?t?8 h.Type: ApplicationFiled: May 20, 2008Publication date: April 1, 2010Applicant: NUKEM TECHNOLOGIES GMBHInventors: Werner Heit, Martin Kadner, Georg Braehler, Karl Froschauer, Guo Wenli, Liang Tonxiang, Tang Chunhe
-
Publication number: 20090174392Abstract: In order to further develop a circuit arrangement (100) as well as a corresponding method for voltage reference and/or for current reference in such circuit arrangement (100) in such way that any additional reference to observe the bandgap reference is not required, it is proposed to perform at least one analog built-in self test (BIST) scheme on the basis of the output of the bandgap reference.Type: ApplicationFiled: April 17, 2007Publication date: July 9, 2009Applicant: NXP B.V.Inventor: Martin Kadner
-
Patent number: 7394239Abstract: A method for the self-testing of a reference voltage in electronic components includes a circuit arrangement for a self-test of the reference voltage that can be implemented in the form of an on-chip test, eg., for which no external reference voltage source is required. The reference voltage (Uref) is fed to a voltage-controlled oscillator whose output forms the input to a Wien-Robinson bridge whose output signal is checked in a phase detector for its phase shift relative to the input to the Wien-Robinson bridge to check the balance of the Wien-Robinson bridge. The Wien-Robinson bridge is set to be balanced at a frequency (OMEGAref.test) that is generated in the oscillator at the nominal value(Uref.tes) selected for the reference voltage (Uref), and a pass signal is generated if the bridge is balanced and a fail signal is generated if it is not.Type: GrantFiled: June 17, 2004Date of Patent: July 1, 2008Assignee: NXP B.V.Inventor: Martin Kadner
-
Patent number: 7339365Abstract: In order to provide a phase detector and a method of phase detection which are distinguished by greater sensitivity and simple implementability, at least one differential signal of two input signals (Ua; Ub) may be formed over at least one predefined period by means of a first subtracter (12), at least one maximum value of the at least one differential signal may be detected by means of a first peak detector (16) and at least one minimum value of the at least one differential signal may be detected by means of a second peak detector (18) and at least one further differential signal (Uout) may be formed from the at least one maximum value and the at least one minimum value by means of a second subtracter (14).Type: GrantFiled: May 14, 2004Date of Patent: March 4, 2008Assignee: NXP B.V.Inventor: Martin Kadner
-
Publication number: 20070216395Abstract: To provide a method for the self-testing of a reference voltage in electronic components, by means of which method there is specified a circuit arrangement for a self-test of the reference voltage that can be implemented in the form of an on-chip test, i.e. for which no external reference voltage source is required, provision is made for the reference voltage (Uref) to be fed to a voltage-controlled oscillator whose output forms the input to a Wien-Robinson bridge whose output signal is checked in a phase detector for its phase shift relative to the input to the Wien-Robinson bridge to check the balance of the Wien-Robinson bridge, the Wien-Robinson bridge being set to be balanced at a frequency (?ref.test) that is generated in the oscillator at the nominal value (Uref.tes) selected for the reference voltage (Uref), and a pass signal is generated if the bridge is balanced and a fail signal is generated if it is not.Type: ApplicationFiled: June 17, 2004Publication date: September 20, 2007Applicant: Koninklijke Philips Electronics N.V.Inventor: Martin Kadner
-
Patent number: 7183773Abstract: To provide a method for the self-testing of a reference voltage in electronic components, by means of which method there is defined a circuit arrangement for a self-test of the reference voltage that can be implemented in the form of an on-chip test, i.e. for which no external reference-voltage source is required, provision is made for the reference voltage (Uref) to be the variable of a function f(Uref) that has an extreme at the point where the selected nominal value (Uref.Type: GrantFiled: June 14, 2004Date of Patent: February 27, 2007Assignee: NXP B.V.Inventor: Martin Kadner
-
Patent number: 7119529Abstract: A description is given of a circuit arrangement with a resistor voltage divider chain which comprises a number N of two-terminal resistors which are connected in series between a number N+1 of connection points, with N being greater than or equal to 2.Type: GrantFiled: June 9, 2004Date of Patent: October 10, 2006Assignee: Koninklijke Philips Electronics N.V.Inventor: Martin Kadner
-
Publication number: 20060181282Abstract: To provide a method for the self-testing of a reference voltage in electronic components, by means of which method there is defined a circuit arrangement for a self-test of the reference voltage that can be implemented in the form of an on-chip test, i.e. for which no external reference-voltage source is required, provision is made for the reference voltage (Uref) to be the variable of a function f(Uref) that has an extreme at the point where the selected nominal value (Uref.Type: ApplicationFiled: June 14, 2004Publication date: August 17, 2006Applicant: Koninklije Philips Electronics, N.V.Inventor: Martin Kadner
-
Publication number: 20060145682Abstract: In order to provide a phase detector and a method of phase detection which are distinguished by greater sensitivity and simple implementability, at least one differential signal of two input signals (Ua; Ub) may be formed over at least one predefined period by means of a first subtracter (12), at least one maximum value of the at least one differential signal may be detected by means of a first peak detector (16) and at least one minimum value of the at least one differential signal may be detected by means of a second peak detector (18) and at least one further differential signal (Uout) may be formed from the at least one maximum value and the at least one minimum value by means of a second subtracter (14).Type: ApplicationFiled: May 14, 2004Publication date: July 6, 2006Applicant: Koninklijke Philips Electronics N.V.Inventor: Martin Kadner
-
Publication number: 20050012495Abstract: A description is given of a circuit arrangement with a resistor voltage divider chain which comprises a number N of two-terminal resistors which are connected in series between a number N+1 of connection points, with N being greater than or equal to 2.Type: ApplicationFiled: June 9, 2004Publication date: January 20, 2005Inventor: Martin Kadner
-
Patent number: 6197073Abstract: In order to produce aluminium oxide beads, an acid aluminium oxide sol or an acid aluminium oxide suspension is converted into droplets by a vibrating nozzle plate and pre-solidified after the formation of a bead shape by laterally blowing gaseous ammonia and then coagulated in an ammonia solution.Type: GrantFiled: October 27, 1997Date of Patent: March 6, 2001Assignee: Egbert BrandauInventors: Martin Kadner, Egbert Brandau, Hans Huschka
-
Patent number: 5420086Abstract: The invention relates to methods for producing stabilized zirconium oxide powder suitable for pressing shaped elements and subsequent sintering to provide high-density ceramic materials. To this end, an aqueous solution of a zirconium salt containing an additive is converted into droplets. The droplets formed are solidified, by the action of ammonia, into gel particles which are then washed, dewatered dried and calcined.Type: GrantFiled: November 3, 1993Date of Patent: May 30, 1995Assignee: Nukem GmbHInventors: Egbert Brandau, Martin Kadner, Edwin Brauneis
-
Patent number: 5183493Abstract: To manufacture spherical particles out of liquid phase with a narrow grain spectrum using melting temperatures of up to 1500.degree. C. by generating droplets by means of vibrating nozzles, the liquid phase, the nozzle and the drop distance for the droplets are maintained at a constant temperature of 1.degree. to 10.degree. C. above the melting temperature of the liquid phase until the spherical shape of the falling droplets has stabilized. The particles must then be abruptly chilled.Type: GrantFiled: July 8, 1991Date of Patent: February 2, 1993Assignee: Nukem GmbHInventors: Egbert Brandau, Hans Huschka, Martin Kadner, Waldemar Schroder
-
Patent number: 4432892Abstract: For the safe intermediate and final storage of tritium after reaction with a hydride forming metal, it is embedded in concrete which, of course, does not lead to a complete exclusion from the environment since the tritium is able to permeate through the concrete. This is avoided by pressing to molded bodies at room temperature the tritium containing metal particles with powders of metals which have a low permeability for tritium.Type: GrantFiled: May 13, 1981Date of Patent: February 21, 1984Assignee: Nukem GmbHInventors: Horst Ebinger, Martin Kadner, Guenther Luthardt
-
Patent number: 4119563Abstract: There is provided a process for the production of spherical fuel and/or fertile oxide or carbide particles for a nuclear reactor, especially a high temperature reactor, by casting an aqueous solution of a uranium and/or a thorium and/or plutonium salt, as well as in the case of the production of carbide particles finely dispersed carbon also, from a vibrating nozzle, passing the drops formed through an ammonia containing gas zone into an ammoniacal precipitation bath with subsequent washing, drying and sintering or melting. To the aqueous solution there is added individually or in admixture a water soluble or water miscible monomeric hydrocarbon having an aldehyde, keto, ether, amino, imino, phenol, carboxylic acid or carboxylic acid amide group, which substituted hydrocarbons form stable adducts with uranium, thorium and plutonium in aqueous alkaline solution, which adducts cannot be washed out with water and which does not impart to the solution a viscosity of over 15 cp at 20.degree. C.Type: GrantFiled: January 14, 1977Date of Patent: October 10, 1978Assignee: Hobeg Hochtemperaturreaktor-Brennelement GmbHInventors: Martin Kadner, Karl-Gerhard Hackstein, Gerhard Spener
-
Patent number: 4060497Abstract: Uniform spherical fuel and/or fertile particles are formed by conversion of an oscillating liquid stream of a uranium and/or thorium compound solution flowing from at least one nozzle in an amount of more than 3,000 drops per minute by allowing these drops to fall into an ammonia solution and subsequently drying and sintering the particles thus formed.Type: GrantFiled: December 8, 1975Date of Patent: November 29, 1977Assignee: HOBEG Hochtemperaturreaktor-Brennelement GmbHInventors: Hans Huschka, Martin Kadner