US 11,781,929 B2
Pressure sensor diaphragm for pool cleaning robot
Gilad Goldenberg, Kfar saba (IL); and Avshalom Kehati, Zikhron Yaakov (IL)
Assigned to MAYTRONICS LTD., Kibbutz Yizrael (IL)
Filed by Maytronics Ltd., Kibutz Yizrael (IL)
Filed on Dec. 29, 2020, as Appl. No. 17/247,906.
Claims priority of provisional application 62/954,897, filed on Dec. 30, 2019.
Prior Publication US 2021/0199525 A1, Jul. 1, 2021
Int. Cl. E04H 4/16 (2006.01); G01L 9/00 (2006.01); G05D 1/02 (2020.01)
CPC G01L 9/0044 (2013.01) [E04H 4/1654 (2013.01); G05D 1/0206 (2013.01); E04H 4/16 (2013.01); G05D 2201/0203 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A pool cleaning robot comprising:
a hollow body, a fluid input, a fluid output, a propulsion unit for moving the pool cleaning robot within a pool, a filtering unit, and a sensing module that comprises a gas pressure sensor, a first space, a second space and a diaphragm;
wherein the diaphragm seals the second space and separates the first space from the second space;
wherein the diaphragm, via the first space, is fluidly coupled to the filtering unit;
wherein the diaphragm is configured to define a gas pressure within the second space as a function of, at least, a fluid pressure within the first space;
wherein the gas pressure sensor is located within the second space and is configured to measure the gas pressure within the second space.