Patents by Inventor Haskell Sheinberg
Haskell Sheinberg 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).
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Patent number: 6093232Abstract: The present invention includes iron-carbon compacts and a process for making them. The process includes preparing a slurry comprising iron powder, furfuryl alcohol, and a polymerization catalyst for initiating the polymerization of the furfuryl alcohol into a resin, and heating the slurry to convert the alcohol into the resin. The resulting mixture is pressed into a green body and heated to form the iron-carbon compact. The compact can be used as, or machined into, a magnetic flux concentrator for an induction heating apparatus.Type: GrantFiled: March 9, 1999Date of Patent: July 25, 2000Assignee: The Regents of the University of CaliforniaInventor: Haskell Sheinberg
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Patent number: 5434128Abstract: A superconductive article is made by inserting a rigid mandrel into an internal cavity of a first metallic tube, said tube having an interior surface and an exterior surface, said interior surface defining the interior cavity, forming a layer of a superconductive material or superconductive precursor upon the exterior surface of said first metallic tube, machining the layer of superconductive material or superconductive precursor to a predetermined diameter to form an intermediate article configured for insertion into a second metallic tube having an interior diameter corresponding to the predetermined diameter, inserting the machined intermediate article into a second metallic tube having an internal diameter corresponding to the predetermined diameter of the intermediate article to form a composite intermediate article, reducing or ironing the composite intermediate article to a predetermined cross-sectional diameter, and sintering the reduced or ironed composite intermediate article at temperatures and forType: GrantFiled: December 17, 1993Date of Patent: July 18, 1995Assignee: The United States Department of EnergyInventors: David A. Korzekwa, John F. Bingert, Dean E. Peterson, Haskell Sheinberg
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Patent number: 5261941Abstract: Alloys of tungsten and uranium and a method for making the alloys. The amount of tungsten present in the alloys is from about 55 vol % to about 85 vol %. A porous preform is made by sintering consolidated tungsten powder. The preform is impregnated with molten uranium such that (1) uranium fills the pores of the preform to form uranium in a tungsten matrix or (2) uranium dissolves portions of the preform to form a continuous uranium phase containing tungsten particles.Type: GrantFiled: November 25, 1991Date of Patent: November 16, 1993Assignee: The United States of America as represented by the United States Department of EnergyInventor: Haskell Sheinberg
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Patent number: 5035854Abstract: Alloys of uranium and tungsten and a method for making the alloys. The amount of tungsten present in the alloys is from about 4 wt % to about 35 wt %. Tungsten particles are dispersed throughout the uranium and a small amount of tungsten is dissolved in the uranium.Type: GrantFiled: April 2, 1990Date of Patent: July 30, 1991Assignee: The United States of America as represented by the United States Department of EnergyInventors: Paul S. Dunn, Haskell Sheinberg, Billy M. Hogan, Homer D. Lewis, James M. Dickinson
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Patent number: 4959194Abstract: Alloys of uranium and tungsten and a method for making the alloys. The amount of tungsten present in the alloys is from about 4 wt % to about 35 wt %. Tungsten particles are dispersed throughout the uranium and a small amount of tungsten is dissolved in the uranium.Type: GrantFiled: March 28, 1989Date of Patent: September 25, 1990Assignee: The United States of America as represented by the United States Department of EnergyInventors: Paul S. Dunn, Haskell Sheinberg, Billy M. Hogan, Homer D. Lewis, James M. Dickinson
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Patent number: 4942278Abstract: Method of heating small particles using microwave radiation which are not normally capable of being heated by microwaves. The surfaces of the particles are coated with a material which is transparent to microwave radiation in order to cause microwave coupling to the particles and thus accomplish heating of the particles.Type: GrantFiled: July 24, 1989Date of Patent: July 17, 1990Assignee: The United States of America as represented by the United States Department of EnergyInventors: Haskell Sheinberg, Thomas T. Meek, Rodger D. Blake
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Patent number: 4892581Abstract: A composition of matter comprised of copper and particles which are dispersed throughout the copper, where the particles are comprised of copper oxide and copper having a coating of copper oxide, and a method for making this composition of matter.Type: GrantFiled: April 4, 1989Date of Patent: January 9, 1990Assignee: The United States of America as represented by the United States Department of EnergyInventors: Haskell Sheinberg, Thomas T. Meek, Rodger D. Blake
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Patent number: 4857266Abstract: A composition of matter comprised of copper and particles which are dispersed throughout the copper, where the particles are comprised of copper oxide and copper having a coating of copper oxide, and a method for making this composition of matter.Type: GrantFiled: December 5, 1988Date of Patent: August 15, 1989Assignee: The United States of America as represented by the United States Department of EnergyInventors: Haskell Sheinberg, Thomas T. Meek, Rodger D. Blake
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Patent number: 4784686Abstract: A method of synthesizing ultrafine powders using microwaves is described. A water soluble material is dissolved in water and the resulting aqueous solution is exposed to microwaves until the water has been removed. The resulting material is an ultrafine powder. This method can be used to make Al.sub.2 O.sub.3, NiO+Al.sub.2 O.sub.3 and NiO as well as a number of other materials including GaBa.sub.2 Cu.sub.3 O.sub.x.Type: GrantFiled: April 24, 1987Date of Patent: November 15, 1988Assignee: The United States of America as represented by the United States Department of EnergyInventors: Thomas T. Meek, Haskell Sheinberg, Rodger D. Blake
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Patent number: 4626281Abstract: A composition of matter having a Rockwell A hardness of at least 85 is formed from a precursor mixture comprising between 3 and 10 weight percent boron carbide and the remainder a metal mixture comprising from 70 to 90 percent tungsten or molybdenum, with the remainder of the metal mixture comprising nickel and iron or a mixture thereof. The composition has a relatively low density of between 7 to 14 g/cc. The precursor is preferably hot pressed to yield a composition having greater than 100% of theoretical density.Type: GrantFiled: May 7, 1985Date of Patent: December 2, 1986Assignee: The United States of America as represented by the United States Department of EnergyInventor: Haskell Sheinberg
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Patent number: 4400213Abstract: Novel very hard compositions of matter are prepared by using in all embodiments only a minor amount of a particular carbide (or materials which can form the carbide in situ when subjected to heat and pressure); and no strategic cobalt is needed. Under a particular range of conditions, densified compositions of matter of the invention are prepared having hardnesses on the Rockwell A test substantially equal to the hardness of pure tungsten carbide and to two of the hardest commercial cobalt-bonded tungsten carbides. Alternately, other compositions of the invention which have slightly lower hardnesses than those described above in one embodiment also possess the advantage of requiring no tungsten and in another embodiment possess the advantage of having a good fracture toughness value.Type: GrantFiled: February 3, 1981Date of Patent: August 23, 1983Inventor: Haskell Sheinberg