Patents by Inventor John M. Vitek

John M. Vitek 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).

  • Modified brass alloys with improved stress relaxation resistance
    Patent number: 4259124
    Abstract: An alloy system which exhibits improved resistance to stress relaxation at elevated temperatures utilizes additions of silicon or tin or mixtures of silicon and tin to a copper-zinc base to attain the stress relaxation performance. The composition and processing of this alloy system maintains at least 90% by weight alpha-phase within the alloy.
    Type: Grant
    Filed: October 11, 1979
    Date of Patent: March 31, 1981
    Assignee: Olin Corporation
    Inventors: Warren F. Smith, John M. Vitek, Eugene Shapiro
  • Copper base alloy containing manganese and cobalt
    Patent number: 4249942
    Abstract: A copper base alloy having improved stress relaxation resistance consisting essentially of about 10.0 to 31% zinc; about 1.0 to 5.0% aluminum; about 0.1 to 3.0% cobalt; about 0.5 to 8% manganese; and the balance essentially copper.
    Type: Grant
    Filed: September 11, 1979
    Date of Patent: February 10, 1981
    Assignee: Olin Corporation
    Inventors: Eugene Shapiro, John M. Vitek, Warren F. Smith, Jr.
  • Copper base alloy containing manganese and iron
    Patent number: 4242131
    Abstract: A copper base alloy having improved stress relaxation resistance consisting essentially of: about 15.0 to 31% zinc; about 1.0 to 5.0% aluminum; about 0.1 to less than 1% iron; about 1.1 to 8% manganese; and the balance essentially copper.
    Type: Grant
    Filed: September 11, 1979
    Date of Patent: December 30, 1980
    Assignee: Olin Corporation
    Inventors: Eugene Shapiro, John M. Vitek, Warren F. Smith, Jr.
  • Copper base alloy containing manganese and nickle
    Patent number: 4242132
    Abstract: A copper base alloy having improved stress relaxation resistance consisting essentially of: about 15.0 to 31% zinc; about 1.0 to 5.0% aluminum; about 0.1 to less than 1.0% nickel; about 1.1 to 8% manganese; and the balance essentially copper.
    Type: Grant
    Filed: September 11, 1979
    Date of Patent: December 30, 1980
    Assignee: Olin Corporation
    Inventors: Eugene Shapiro, John M. Vitek, Warren F. Smith, Jr.
  • Copper base alloy containing manganese
    Patent number: 4242133
    Abstract: A copper base alloy having improved stress relaxation resistance consisting essentially of: about 15.0 to 31% zinc; about 1.0 to 5.0% aluminum; about 1.1 to 8% manganese; and the balance copper.
    Type: Grant
    Filed: September 11, 1979
    Date of Patent: December 30, 1980
    Assignee: Olin Corporation
    Inventors: Eugene Shapiro, John M. Vitek, Warren F. Smith, Jr.
  • Modified brass alloys with improved stress relaxation resistance
    Patent number: 4233069
    Abstract: An alloy system which exhibits improved resistance to stress relaxation at elevated temperatures utilizes additions of magnesium plus aluminum to a copper-zinc base to attain the stress relaxation performance. Processing of this alloy system should be performed so as to maintain at least 90% by weight alpha-phase within the alloy.
    Type: Grant
    Filed: November 5, 1979
    Date of Patent: November 11, 1980
    Assignee: Olin Corporation
    Inventors: Warren F. Smith, Jr., John M. Vitek, Eugene Shapiro
  • Modified brass alloys with improved stress relaxation resistance
    Patent number: 4233068
    Abstract: An alloy system which exhibits improved resistance to stress relaxation at elevated temperatures utilizes additions of tin or silicon, or mixtures of each of these elements, along with magnesium or magnesium plus aluminum to a copper-zinc base to attain the stress relaxation performance. The composition and processing of this alloy system maintains at least 90% by weight alpha-phase within the alloy.
    Type: Grant
    Filed: November 5, 1979
    Date of Patent: November 11, 1980
    Assignee: Olin Corporation
    Inventors: Warren F. Smith, Jr., John M. Vitek, Eugene Shapiro
  • Modified brass alloys with improved stress relaxation resistance
    Patent number: 4205984
    Abstract: An alloy system which exhibits improved resistance to stress relaxation at elevated temperatures utilizes additions of silicon or tin or mixtures of silicon and tin to a copper-zinc base to attain the stress relaxation performance. The composition and processing of this alloy system maintains at least 90% by weight alpha-phase within the alloy.
    Type: Grant
    Filed: June 28, 1978
    Date of Patent: June 3, 1980
    Assignee: Olin Corporation
    Inventors: Warren F. Smith, Jr., John M. Vitek, Eugene Shapiro
  • Enhanced grain growth in arsenic modified copper-zinc brasses
    Patent number: 4128418
    Abstract: A copper-zinc brass alloy is disclosed which exhibits enhanced grain growth characteristics when modified with from 0.02 to 0.80 percent by weight arsenic.
    Type: Grant
    Filed: July 11, 1977
    Date of Patent: December 5, 1978
    Assignee: Olin Corporation
    Inventor: John M. Vitek