Patents by Inventor John T. Abrams

John T. Abrams 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).

  • Publication number: 20190233167
    Abstract: A method for providing a passivation layer or pH protective coating on a substrate surface by PECVD is provided, the method comprising generating a plasma from a gaseous reactant comprising polymerizing gases. The lubricity, passivation, pH protective, hydrophobicity, and/or barrier properties of the passivation layer or pH protective coating are set by setting the ratio of the O2 to the organosilicon precursor in the precursor feed, and/or by setting the electric power used for generating the plasma. In particular, a passivation layer or pH protective coating made by the method is provided. Pharmaceutical packages coated by the method and the use of such packages protecting composition contained in the vessel against mechanical and/or chemical effects of the surface of the package without a passivation layer or pH protective coating material are also provided.
    Type: Application
    Filed: December 19, 2018
    Publication date: August 1, 2019
    Inventors: John T. Felts, Thomas E. Fisk, Robert S. Abrams, John Ferguson, Jonathan R. Freedman, Robert J. Pangborn, Peter J. Sagona, Christopher Weikart
  • Patent number: 6536352
    Abstract: Improved frangible bullets comprising powder particles of one metal bonded together by another metal wherein the metals have substantially different melting points or an alloying metal is diffused between the metal particles are manufactured by compacting the metal particles and heating under conditions to create brittle bonds.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: March 25, 2003
    Assignee: Delta Frangible Ammunition, LLC
    Inventors: Anil V. Nadkarni, John T. Abrams
  • Publication number: 20020037234
    Abstract: The invention provides a fully dense compacted metal composite comprising silver alloy matrix having uniformly dispersed therein discrete microparticles of a refractory metal oxide, and further comprising discrete macroparticles of metal oxides. This composition can be used for electrical contacts which have greater mechanical strength, welding resistance and arc erosion resistance than previously known electrical contacts.
    Type: Application
    Filed: July 13, 2001
    Publication date: March 28, 2002
    Inventors: Anil Nadkarni, John T. Abrams
  • Patent number: 6074454
    Abstract: The invention relates to bullets having increased frangibility (or which can be easily fragmented) and to materials and processes for the manufacture of such bullets. The bullets of the present invention are typically made from copper or copper alloy powders (including brass, bronze and dispersion strengthened copper) which are pressed and then sintered under conditions so as to obtain bullets with the desired level of frangibility. In preferred embodiments of the invention, the bullets also contain several additives that increase or decrease their frangibility.
    Type: Grant
    Filed: July 11, 1996
    Date of Patent: June 13, 2000
    Assignee: Delta Frangible Ammunition, LLC
    Inventors: John T. Abrams, Anil V. Nadkarni, Roy Kelly