Patents by Inventor Milton R. Pickus

Milton R. Pickus 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).

  • Method of manufacturing a niobium-aluminum-germanium superconductive material
    Patent number: 4223434
    Abstract: A method for manufacturing flexible Nb.sub.3 (Al,Ge) multifilamentary superconductive material in which a sintered porous niobium compact is infiltrated with an aluminum-germanium alloy and thereafter deformed and heat treated in a series of steps at different successively higher temperatures preferably below 1000.degree. C. to produce filaments composed of Nb.sub.3 (Al,G3) within the compact. By avoiding temperatures in excess of 1000.degree. C. during the heat treatment, cladding material such as copper can be applied to facilitate a deformation step preceding the heat treatment and can remain in place through the heat treatment to also serve as a temperature stabilizer for supeconductive material produced. Further, these lower heat treatment temperatures favor formation of filaments with reduced grain size and, hence with more grain boundaries which in turn increase the current-carrying capacity of the superconductive material.
    Type: Grant
    Filed: February 1, 1979
    Date of Patent: September 23, 1980
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: John L. Wang, Milton R. Pickus, Kent E. Douglas
  • Sintered rare earth-iron Laves phase magnetostrictive alloy product and preparation thereof
    Patent number: 4152178
    Abstract: A sintered rare earth-iron Laves phase magnetostrictive alloy product characterized by a grain oriented morphology. The grain oriented morphology is obtained by magnetically aligning powder particles of the magnetostrictive alloy prior to sintering. Specifically disclosed are grain oriented sintered compacts of Tb.sub.x Dy.sub.1-x Fe.sub.2 and their method of preparation. The present sintered products have enhanced magnetostrictive properties.
    Type: Grant
    Filed: January 24, 1978
    Date of Patent: May 1, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Manoochehr Malekzadeh, Milton R. Pickus
  • Copper-base alloy for liquid phase sintering of ferrous powders
    Patent number: 4130422
    Abstract: A copper-base alloy composition consisting essentially of 85 - 89% copper, 2 - 4% manganese, and 8 - 11% silicon and use of same in liquid phase sintering of ferrous powders.
    Type: Grant
    Filed: June 16, 1977
    Date of Patent: December 19, 1978
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: John L. Wang, Milton R. Pickus, Meng-Hsiu Chen
  • Quench-age method for the fabrication of niobium-aluminum superconductors
    Patent number: 4088512
    Abstract: A flexible Nb.sub.3 Al superconducting wire is fabricated from a niobium-aluminum composite wire by heating to form a solid solution which is retained at room temperature as a metastable solid solution by quenching. The metastable solid solution is then transformed to the stable superconducting A-15 phase by low temperature aging. The transformation induced by aging can be controlled to yield either a multifilamentary or a solid A-15 core surrounded by ductile niobium.
    Type: Grant
    Filed: January 21, 1977
    Date of Patent: May 9, 1978
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Milton R. Pickus, Robert L. Ciardella