Measuring and testing – Liquid level or depth gauge
Patent
1979-09-28
1981-09-15
Yasich, Daniel M.
Measuring and testing
Liquid level or depth gauge
200 6104, 200 6120, 200 85R, 222 64, 222DIG1, G01F 2300, G03G 1508
Patent
active
042890268
ABSTRACT:
Disclosed is a device for indicating that the level of a dosable material has fallen below a predetermined level in a dosing container having a shaft mounted horizontally for rotation inside of the container and a dosing brush mounted on the shaft. This device comprises an elastic contact tongue radially fixed to the shaft for rotation therewith, the contact tongue being sufficiently elastic so that it assumes a bent configuration having a first radius when rotated in contact over a predetermined portion of its length with the dosable material and so that it assumes an extended configuration having a second radius when rotated so that it is not in contact over the predetermined portion of its length with the dosable material; a contact pin mounted at a distance from the shaft greater than the first radius but not greater than the second radius, so as to be contacted by the contact tongue in its extended configuration; and means for producing a signal when the contact tongue contacts the contact pin.
REFERENCES:
patent: 3253741 (1966-05-01), Russell et al.
patent: 3572555 (1971-03-01), Knight
patent: 3588521 (1971-06-01), Stone
patent: 3643629 (1972-02-01), Kangas et al.
Hoechst Aktiengesellschaft
Yasich Daniel M.
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