Class 324/461 - Using a radioactive substance

Subclass of Class 324 - Electricity: measuring and testing
Definition: Subject matter wherein a radioactive material is used to
No. of patents: 4
Last issue date: 08/28/2007

Number	Title	Issue Date
7260981	Method for leak testing and leak testing apparatus For leak testing closed containers (9) which are filled with a filling product containing at least one liquid component the container is introduced in a test cavity (1) which is evacuated at least down to vapor pressure of that liquid component. The pr...	08/28/2007
5640170	Position and orientation measuring system having anti-distortion source configuration A method and apparatus for determining the position and orientation of a remote object relative to a reference coordinate frame includes providing a source having a plurality of field-generating elements, wherein the field-generating elements generate ele...	06/17/1997
4613866	Three dimensional digitizer with electromagnetic coupling A three dimensional digitizer is provided for determining and digitizing the coordinates of a three dimensional object. A hand-held stylus is used for tracing and determining points of interest on the surface of the object. A plurality of antennas for rad...	09/23/1986
4596148	Tritium pressure measurement The total pressure of pure tritium or the partial pressure of tritium or another radioactive isotope depending upon the calibration is measured utilizing a cylindrical positive electrode, an axial central thin negative electrode coaxial with the cylindric...	06/24/1986

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