Flow direction and state indicator

Details Flow direction and state indicator Flow direction and state indicator

1984-01-18

1986-02-04

Goldstein, Herbert

Measuring and testing

Navigation

Leeway incidence or side-slip

116265, G01P 500

Patent

active

045677603

ABSTRACT:
The subject indicator is a lightweight conical or cone-like member attached to a test surface at its apex by a flexure pivot. The indicators are useful, in a range of sizes, for providing visual indication of the direction and state of fluid flow past the attachment point of each indicator. The flexures may be made of string, cord or the like or, for higher temperature applications, one or more links of chain. The indicators are stable in action and do not whip.

REFERENCES:
patent: 1265420 (1918-05-01), Bieber
patent: 2878672 (1959-03-01), Wikkenhauser
patent: 3799106 (1974-03-01), Lamport
patent: 3845734 (1974-11-01), Demos
patent: 3986396 (1976-10-01), Raymond
patent: 4058010 (1977-11-01), Woodhouse
patent: 4152933 (1979-05-01), Woodhouse
patent: 4223631 (1980-09-01), Poad

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