Eugene E Olson

US Patent:

42622476, Apr 14, 1981

Filed:

Aug 27, 1979

Appl. No.:

6/070218

Inventors:

Eugene E. Olson - Houston TX
Edwin T. Chiles - Houston TX
Alvin D. Goolsby - Houston TX

Assignee:

Shell Oil Company - Houston TX

International Classification:

G01R 2702

US Classification:

324 65CR

Abstract:

The corrosion of a fluid-conveying metallic conduit is measured by electrically connecting relatively thick and thin walled sections of that conduit as the arms of an electrical resistance-measuring bridge.

US Patent:

40629228, Dec 13, 1977

Filed:

Feb 23, 1976

Appl. No.:

5/660600

Inventors:

Eugene E. Olson - Houston TX
Ronald Lee Clendenen - Houston TX
Charles McCammon Schlaudt - Houston TX

Assignee:

Shell Oil Company - Houston TX

International Classification:

C04B 3332

US Classification:

264294

Abstract:

Oriented strontium ferrites which yield superior ceramic permanent magnets are produced by the four-step process of A. preparing small particles of agglomerated less than 0. 1 micron grains of ferric oxide and strontium oxide, B. maintaining the particles of agglomerated oxides at temperatures of from about 800. degree. C to 1100. degree. C for up to about 24 hours to cause the oxides to react (ferritize) and form less than 0. 5 micron diameter crystallites of strontium ferrite, C. sintering the crystallites into a solid body either by maintaining them at from 1100. degree. C to 1300. degree. C for not more than two hours, or preferably by maintaining them at from 800. degree. C to 1300. degree. C while applying pressure, and D.