US 12,285,146 B2
Washing agent dispenser for dishwashing machines
Costanzo Gadini, Casale Monferrato (IT); Alberto Sciutto, Casale Monferrato (IT); Daniele Cerruti, Casale Monferrato (IT); Paolo Savini, Casale Monferrato (IT); Marco Pizzi, Casale Monferrato (IT); Paolo Begnamino, Casale Monferrato (IT); Stefano Allera, Casale Monferrato (IT); and Massimo Zanin, Casale Monferrato (IT)
Assigned to ELTEC S.p.A., Casale Monferrato (IT)
Appl. No. 18/007,964
Filed by ELTEK S.P.A., Casale Monferrato (IT)
PCT Filed Jun. 4, 2021, PCT No. PCT/IB2021/054909
§ 371(c)(1), (2) Date Dec. 2, 2022,
PCT Pub. No. WO2021/245612, PCT Pub. Date Dec. 9, 2021.
Claims priority of application No. 102020000013432 (IT), filed on Jun. 5, 2020.
Prior Publication US 2023/0240507 A1, Aug. 3, 2023
Int. Cl. A47L 15/44 (2006.01); F04B 43/12 (2006.01)
CPC A47L 15/4463 (2013.01) [A47L 15/4418 (2013.01); A47L 15/4436 (2013.01); A47L 15/4445 (2013.01); F04B 43/12 (2013.01); A47L 2401/023 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A washing agent dispenser for washing machines, for dispensing washing agents into a washing machine wash-chamber, the dispenser having a dispenser body designed for mounting on a wall delimiting the washing machine wash-chamber, the dispenser having a first tank, suitable to contain a first washing agent in liquid or semi-solid form, and a first dispensing arrangement which is configured for dispensing first dosed amounts of the first washing agent and which comprises a first duct between a first outlet of the first tank and a first dispensing outlet of the first dosed amounts of the first washing agent,
wherein the first dispensing arrangement comprises a peristaltic pump which includes an actuator and a rotating assembly having at least one compression element, at least one part of the first duct being deformable and in deforming contact with the at least one compression element of the rotating assembly, the peristaltic pump being configured to operate in a first direction of rotation, to cause delivery of the first dosed amounts of the first washing agent,
wherein the dispenser moreover comprises a second tank, suitable to contain a second washing agent, and a second dispensing arrangement which is configured for dispensing second dosed amounts of the second washing agent and which comprises a second duct between an outlet of the second tank and a second dispensing outlet of the second dosed amounts of the second washing agent,
and wherein the peristaltic pump has associated thereto a command arrangement of the second dispensing arrangement, the peristaltic pump being configured to operate in a second direction of rotation, to drive the command arrangement so as to cause delivery of the second dosed amounts of the second washing agent.