Dry pressure gauge with dampened needle movement

Details Dry pressure gauge with dampened needle movement Dry pressure gauge with dampened needle movement

1977-01-05

1978-07-18

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Bourdon

G01L 704

Patent

active

041008120

ABSTRACT:
A dry pressure gauge with a circular spring interconnecting the operational movement end of the Bourdon tube sensor and the driven mechanism that includes added mass to dampen frequencies above a desired design level. The added mass takes the form of added weight on the gauge needle in the form of a circle of material, weights on opposite sides of the needle from the pivot center, or a single mass weight on the needle below the pivot center. Circular spring to mechanism interconnect slotting is included, normally biased to an end limit by a bias spring in the driven mechanism, to allow below connecting spring force movement between the sensor and the driven motion translator to reduce friction.

REFERENCES:
patent: 1663313 (1928-03-01), Motherwell
patent: 1801778 (1931-04-01), MacGahan
patent: 1861255 (1932-05-01), Arey
patent: 1865082 (1932-06-01), Chrisman
patent: 1887804 (1932-11-01), Faber
patent: 3214979 (1965-11-01), Bissell et al.

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