Patents Represented by Attorney Charles E. Krukiel

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  • Sampling valve
    Patent number: 4699356
    Abstract: Fluid sampling valves having a central bore between an inlet and an outlet with a cylindrical valve stem having a conically-faced head which provides means for fluid sealing within the bore. Such valves are especially useful for sampling critical fluid systems such as aerospace hydraulic systems.
    Type: Grant
    Filed: June 13, 1986
    Date of Patent: October 13, 1987
    Inventors: Barry C. Hargrove, James D. Madden
  • Control of anodic passivation systems
    Patent number: 4689127
    Abstract: A method and apparatus for controlling anodic protection of a heat exchanger using two reference electrodes disposed at opposite ends of the heat exchanger.
    Type: Grant
    Filed: February 14, 1986
    Date of Patent: August 25, 1987
    Assignee: Monsanto Company
    Inventor: Donald R. McAlister
  • Catalytic process for producing silahydrocarbons
    Patent number: 4672135
    Abstract: Silahydrocarbons such as tetraorganosilanes prepared from halo-substituted silanes and an organomagnesium compound in the presence of a catalytically effective amount of a thiocyanate.
    Type: Grant
    Filed: May 2, 1986
    Date of Patent: June 9, 1987
    Assignee: Monsanto Company
    Inventor: Patrick J. Lennon
  • Column switching procedure
    Patent number: 4454043
    Abstract: A method for increasing the capacity of a chromatographic system useful for the quantitative determination of at least one component of interest at a trace level concentration in a multi-component composition.
    Type: Grant
    Filed: November 17, 1980
    Date of Patent: June 12, 1984
    Assignee: Monsanto Company
    Inventors: Chihyuan C. Ting, David F. Tomkins, Melvin L. Rueppel