Patents by Inventor John W. Krueger

John W. Krueger 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 for assembly of printed circuit boards with ultrafine pitch components using organic solderability preservatives
    Patent number: 5679266
    Abstract: A method of assembling a printed circuit (PC) boards with ultrafine pitch components. The method comprises: attaching a coarse pitch components on the PC board; applying solvent to the thermal pads of the ultrafine pitch components; mounting a die-attach film on the thermal pads; curing the die-attach film; applying solvent to the die-attach film; forming component leads for the ultrafine pitch components; aligning the ultrafine pitch components to the solder pads; attaching the component leads to the solder pads and the ultrafine pitch components to the thermal pads. Other devices, systems and methods are also disclosed.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: October 21, 1997
    Assignee: Texas Instruments Incorporated
    Inventors: Vijay S. Darekar, Chris N. Thornton, John W. Krueger
  • Remote controlled micromanipulator
    Patent number: 5165297
    Abstract: A durable, frictionless remote controlled manipulator, which is compact, stable, easy to construct, and has good dynamic capability, is a cradle suspension of lever arms, joined by crossed spring hinges to form a parallelogram suspension. The suspension creates vertical motions that have minimal cross-coupled horizontal error. Vertical cross-coupling error that arises at the extremes of parallelogram displacement in the two horizontal axes is hydraulically corrected by the remote controller. Thus, displacements are more nearly mutually perpendicular, and the position of the microtool more faithfully corresponds to the micromter settings. Being compact, the device can be mounted on a microscope stage to minimize cantilevering of the microtool, which is an unwanted source of vibration and also limits the load bearing in larger devices that can only be placed alongside the microscope.
    Type: Grant
    Filed: February 15, 1991
    Date of Patent: November 24, 1992
    Assignee: Albert Einstein College of Medicine of Yeshiva University, a Div. of Yeshiva Univ.
    Inventor: John W. Krueger
  • Micromanipulator using hydraulic bellows
    Patent number: 4946329
    Abstract: Remote control of a micromanipulator employs laterally inextensible metal bellows, connected by flexible tubing of constant intermal diameter, in both the micromanipulator and the remote controller. Variations in the length of one bellows is communicated to the other bellows by variations in hydraulic volume, as opposed to variations in hydraulic pressure.
    Type: Grant
    Filed: April 1, 1988
    Date of Patent: August 7, 1990
    Assignee: Albert Einstein College of Medicine of Yeshiva University
    Inventor: John W. Krueger
  • Aerosol cannister fitting
    Patent number: 4512587
    Abstract: An improved fitting is disclosed for receiving and sealing an aerosol cannister. This fitting employs an annular sealing ring on the fitting to seal against one or more peripheral surfaces of the recess defined by the valve assembly of the aerosol cannister.
    Type: Grant
    Filed: February 28, 1978
    Date of Patent: April 23, 1985
    Assignee: Krubur, Inc.
    Inventors: James W. Burke, John D. Krueger, John W. Krueger
  • Mounted fluid valve assembly for diesel starting systems
    Patent number: D250411
    Type: Grant
    Filed: February 22, 1978
    Date of Patent: November 28, 1978
    Assignee: Phillips
    Inventors: John W. Krueger, John D. Krueger
  • Starting fluid valve assembly for diesel starting systems
    Patent number: D251720
    Type: Grant
    Filed: February 22, 1978
    Date of Patent: May 1, 1979
    Assignee: Phillips, Division of James B. Carter, Inc.
    Inventors: John W. Krueger, John D. Krueger