Liquid level control

Details Liquid level control Liquid level control

1983-12-23

1986-11-04

Frankfort, Charles

Measuring and testing

Liquid level or depth gauge

Sight glass

73323, 73331, 137398, 137559, 116276, G01F 2302, G01F 2330

Patent

active

046204415

ABSTRACT:
A liquid level control responsive to the level of liquid in a vessel having visual verification of fluid level including a tubular body for attachment to an opening in a vessel, the body having aligned openings in opposite sides receiving a pivot shaft, a control box mounted on one side and receiving an extension of the pivot shaft, an arm having one end attached to the pivot shaft and extending out the end of the body into the vessel and having a float on the end which is responsive to the level of liquid within the vessel, a control system within the box actuated by rotation of the pivot arm, and a transparent sight glass sealably closing the end of the tubular body so that the operator can observe the liquid level in the vessel through the sight glass.

REFERENCES:
patent: 318284 (1885-05-01), Ochwadt
patent: 1189922 (1916-07-01), Daly
patent: 2594113 (1952-04-01), Askin
patent: 3089338 (1963-05-01), Glasgow
patent: 3373610 (1968-03-01), Stieber
patent: 3686451 (1972-08-01), Pottharst, Jr.
patent: 3970099 (1976-07-01), Murphy, Jr. et al.
patent: 4181021 (1980-01-01), Harris et al.

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