US 12,292,322 B2
Level indicating device for tank
Chang Sun Yoon, Seoul (KR)
Assigned to KEPCO ENGINEERING & CONSTRUCTION COMPANY, INC., Gimcheon-si (KR)
Filed by KEPCO ENGINEERING & CONSTRUCTION COMPANY, INC., Gyeongsangbuk-do (KR)
Filed on Sep. 30, 2021, as Appl. No. 17/490,779.
Prior Publication US 2023/0112119 A1, Apr. 13, 2023
Int. Cl. G01F 23/16 (2006.01); G01F 23/80 (2022.01)
CPC G01F 23/16 (2013.01) [G01F 23/80 (2022.01)] 5 Claims
OG exemplary drawing
 
1. A level indicating device for a tank, the level indicating device comprising:
a differential pressure type level gauge configured to measure a level of a fluid in the tank on the basis of a pressure according to the level of the fluid in the tank; and
a level indicator configured to indicate the level of the fluid by moving in a vertical direction according to a differential pressure signal measured by the differential pressure type level gauge,
wherein the level indicator comprises:
a power supply portion configured to supply power according to the differential pressure signal;
a power transmission portion configured to transmit the power via the power supply portion;
a moving portion configured to receive the power from the power transmission portion and move to a position corresponding to the level of the fluid; and
a beam irradiation portion coupled to the moving portion and configured to irradiate light to the level of the fluid, and
wherein the power supply portion comprises a first motor with an RPM that varies with the differential pressure signal,
the power transmission portion comprises a first upper pulley and a first lower pulley that are arranged spaced apart from each other in an upper end and a lower end, and a first rotation member wound around the first upper pulley and the first lower pulley and rotated by the first motor in one direction, and
the moving portion is coupled to the first rotation member and moves in the vertical direction when the first rotation member is rotated.