Tuesday, October 28, 2014

A. A. John Christian patents lubricants in NASA space missions.

African American John Christian was working as an Air Force, Materials Research Engineer, when he invented and patented new lubricants, used in high flying aircraft and NASA space missions. The lubricants worked well under a wider temperature range than previous products, from minus 50 to 600 degrees. They were used in the helicoptor fuel lines, astronaut's back-pack life support systems, and in the four-wheel drive of the "moon-buggy".
  • 6/30/1970 #3,518,189 - Grease composition for use at high temperatures and high speeds.
  • 10/27/1970 #3,536,624 - Grease compositions of fluorocarbon polyethers thickened with polyfluorophenylene polymers.
  • 5/12/1981 #4,267,348 - Fluorine-containing benzimidazoles
  • 6/12/1984 #4,454,349 - Perfluoroalkylether substituted phenyl phosphines

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