Oscillating level indicator

Details Oscillating level indicator Oscillating level indicator

1981-06-15

1983-02-22

Scott, J. R.

Electricity: circuit makers and breakers

Special application

Container contents level responsive

H01H 3500

Patent

active

043750206

ABSTRACT:
There is described a level-indicating device provided with a mounting the device in a wall of a bunker, tank or other container, a system for drive motor mounted to be freely rotatable about the axis thereof, an oscillating transmission unit connected to the drive motor, with an output shaft and a vane mounted on said shaft, whereby the drive motor is provided with switching means to generate a signal and to cut the motor off when the vane meets a resistance. Sealing means are provided for the sealing between the rotatable vane shaft and the mounting. The transmission unit is so designed as to cause a swinging motion of the vane due to the drive motor rotation, while the sealing means comprise a completely closed flexible sealing member which is positively connected on the one side to the vane shaft and on the other side to the mounting.

REFERENCES:
patent: 2851553 (1958-09-01), Grostick
patent: 3210493 (1965-10-01), Lau
patent: 3210495 (1965-10-01), Lau
patent: 3290462 (1966-12-01), Watkins
patent: 3721971 (1973-03-01), Gruber
patent: 3975605 (1976-08-01), van Eeden et al.
patent: 4095064 (1978-06-01), Fleckenstein
patent: 4147906 (1979-04-01), Levine
patent: 4211966 (1980-07-01), Sweet

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