Patents by Inventor Richard Juncker

Richard Juncker 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 positioning magnetic heads on a turntable
    Patent number: 5392507
    Abstract: A method for quickly and accurately positioning the rotary magnetic heads of a recorder/reader unit. The support for the magnetic heads includes a turntable and a countertable that are circular and that have a common axis of rotation, each including a peripheral support zone and a central support zone. The magnetic heads are situated around the periphery of the turntable. A screw enables the peripheral support zones to be brought into contact with each other and then the central support surfaces to be brought into contact with each other. The invention is applicable to recording and/or reading information on a magnetic tape.
    Type: Grant
    Filed: August 20, 1993
    Date of Patent: February 28, 1995
    Assignee: Schlumberger Industries, Inc.
    Inventors: Richard Juncker, Pierre Abeille
  • Magnetic head having a system of windings for compensating magnetic leakage
    Patent number: 5359482
    Abstract: A magnetic head for a digital signal comprises a double winding system in which each winding has one-half wound around a first branch of a U-shaped core and has its other half wound around a second branch so that when an appropriate electrical current is carried by the winding, a magnetic field is created such that the components thereof that are not channelled by the core cancel out giving rise to a zero resultant, while those channelled by the core add together.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: October 25, 1994
    Assignee: Schlumberger Industries
    Inventor: Richard Juncker
  • Method and apparatus for recording and/or reading information on a magnetic tape
    Patent number: 5287236
    Abstract: The invention relates to a method and to apparatus for quickly and accurately positioning the rotary magnetic heads of a recorder/reader unit. The support for the magnetic heads includes a turntable and a countertable that are circular and that have a common axis of rotation, each including a peripheral support zone and a central support zone. The magnetic heads are situated around the periphery of the turntable. A screw enables the peripheral support zones to be brought into contact with each other and then the central support surfaces to be brought into contact with each other. The invention is applicable to recording and/or reading information on a magnetic tape.
    Type: Grant
    Filed: June 11, 1992
    Date of Patent: February 15, 1994
    Assignee: Schlumberger Industries
    Inventors: Richard Juncker, Pierre Abeille