Device for measuring, controlling and/or detecting the filling l

Details Device for measuring, controlling and/or detecting the filling l Device for measuring, controlling and/or detecting the filling l

1994-05-24

1996-06-11

Cuchlinski, Jr., William A.

Measuring and testing

Liquid level or depth gauge

G01F 2300

Patent

active

055244866

ABSTRACT:
A fill level indicating device of the rod-in-tube type has a pair of propping struts gusseting the vibratory tube to the membrane and to the membrane support. One strut is arranged above the vibratory tube and the other below, with both struts aligned in a common plane which is vertical when the device is installed in a container. The vibration excitation and detection systems are arranged on the membrane at 90.degree. to the plane of the struts, so that with the device installed in a container the direction of vibration is horizontal. The membrane is made with thickened portions extending through its middle in the direction of vibration. Material may be removed from the thickened portions by grinding or filing to tune the device to the desired resonant frequency. In addition or as an alternative to the thickened portions of the membrane, ridges oriented opposite to the direction of vibration may be provided on an end wall of the vibratory tube from which material may be removed to tune the device to the desired resonant frequency.

REFERENCES:
patent: 3184968 (1965-05-01), Werner
patent: 3228523 (1966-01-01), Boyd et al.
patent: 4170311 (1979-10-01), Spaw
patent: 4226118 (1980-10-01), Aldrich
patent: 4383443 (1983-06-01), Langdon
patent: 4499765 (1985-02-01), Benz et al.
patent: 4785663 (1988-11-01), Hermann
patent: 4896536 (1990-01-01), Benz

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