1
Larry N Moskowitz, Donald J Lindley: Apparatus and process for producing high density thermal spray coatings. Amoco Corporation, Bruce A Walker, Frank Sroka, William M Magidson, September 26, 1989: US04869936 (73 worldwide citation)

An attachment for supersonic thermal spray equipment by which inert shield gas is directed radially outwardly about the central core of a supersonic, particle-carrying flame to isolate the same from ambient atmosphere. The shield gas is injected tangentially against the inner surface of a constraini ...


2
David T Bach: Liquid/liquid fiber-optic fluorescence detector and absorbance analyzer. Amoco Corporation, Bruce A Walker, William H Magidson, Ralph C Medhurst, September 19, 1989: US04867559 (67 worldwide citation)

An apparatus and method are disclosed for measuring the fluorescence and absorbance of a liquid sample. A sample tube is provided that has an external surface and a bore therethrough for containing a sample fluid. A cladding fluid coats the bore of the sample tube to provide a smooth surface adjacen ...


3
David T Bach: Ellipsoidal cylinder fluorescence analyzer. Amoco Corporation, Bruce A Walker, William H Magidson, Ralph H Medhurst, August 29, 1989: US04861163 (11 worldwide citation)

The present invention provides an apparatus and method for fluorescence detection. An ellipsoidal cylinder having a first focal line, a second focal line and an internal reflective surface is provided. An excitation source is disposed on the first focal line and a sample container is disposed on the ...


4
John D Ralston, Anthony L Moretti, Ravinder K Jain: Selective intermixing of layered structures composed of thin solid films. Amoco Corporation, Bruce A Walker, William H Magidson, Ralph C Medhurst, September 12, 1989: US04865923 (10 worldwide citation)

Synthetic layered structures, which may be semiconductor structures, are modified, both laterally and vertically, to provide novel electronic, optoelectronic, and optical properties. This is accomplished by selective intermixing of such layered structures through selective irradiation with laser bea ...


5
David Bach: System for radiation detection using a graded index optic element. Amoco Corporation, Bruce A Walker, William H Magidson, Ralph C Medhurst, August 1, 1989: US04853547 (6 worldwide citation)

An apparatus and method for delivering excitation radiation to a sample and collecting radiation emanating from the sample. The sample is placed in a deep well which consists of a wall and a bottom end closed by a membrane to form a sample recepticle. A GRIN lens is provided that has a first surface ...