The patent concerns a ring shaped element placed in the path of flowing fluid. Gravity holds the element down until skin frictional forces of the flowing fluid lift it off its seat. At the point of lift-off the precise degree of skin friction is known.

  • Supplemental Notes:
    • Government-owned invention available for licensing.
  • Corporate Authors:

    Department of the Army

    Pentagon Building
    Washington, DC  United States  20310
  • Authors:
    • Bush, C C
  • Publication Date: 1973-2-6

Media Info

  • Pagination: 4 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00128430
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: PAT-APPL-100018 Patent
  • Files: TRIS
  • Created Date: Dec 29 1975 12:00AM