US 12,492,713 B2
Pump cover for a household appliance
Gianluca Cestaro, Mira (IT); Antonio De Moliner, Oderzo (IT); Damiano Montagner, Codognè (IT); and Federico Zoppas, Treviso (IT)
Assigned to I.R.C.A. S.P.A. INDUSTRIA RESISTENZE
Appl. No. 17/906,530
Filed by I.R.C.A. S.P.A. INDUSTRIA RESISTENZE CORAZZATE E AFFINI, Vittorio Veneto (IT)
PCT Filed Mar. 24, 2021, PCT No. PCT/IB2021/052422
§ 371(c)(1), (2) Date Sep. 16, 2022,
PCT Pub. No. WO2021/191809, PCT Pub. Date Sep. 30, 2021.
Claims priority of application No. 102020000006253 (IT), filed on Mar. 25, 2020.
Prior Publication US 2023/0122647 A1, Apr. 20, 2023
Int. Cl. A47L 15/42 (2006.01); D06F 34/24 (2020.01); D06F 39/04 (2006.01); D06F 39/08 (2006.01); F04D 1/00 (2006.01); F04D 29/42 (2006.01); F04D 29/58 (2006.01); F24H 1/10 (2022.01); G05D 23/24 (2006.01); H05B 3/82 (2006.01); D06F 103/16 (2020.01); D06F 103/52 (2020.01)
CPC F04D 29/588 (2013.01) [A47L 15/4225 (2013.01); A47L 15/4285 (2013.01); A47L 15/4287 (2013.01); D06F 34/24 (2020.02); D06F 39/04 (2013.01); D06F 39/085 (2013.01); F04D 1/00 (2013.01); F04D 29/426 (2013.01); F24H 1/102 (2013.01); G05D 23/24 (2013.01); H05B 3/82 (2013.01); A47L 2401/12 (2013.01); D06F 2103/16 (2020.02); D06F 2103/52 (2020.02); F24H 2250/02 (2013.01); H05B 2203/016 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A cover for a pump for a liquid for a household appliance, in particular for a dishwasher or a washing machine;
the cover comprising
a wall having
an inner face destined to come into contact with the liquid and
an outer face, opposite to the inner face;
an electric heating element which crosses said wall, whereby said at least one electric heating element is apt to come into contact with the liquid;
wherein said wall comprises at least one first portion where the inner face is spaced apart from the electric heating element;
wherein said wall comprises at least one second portion, where the inner face is in contact with the electric heating element;
a support fixed to the outer face;
wherein
the cover further comprises at least a first NTC thermistor and a second NTC thermistor which are fixed to the outer face at said first portion of the wall;
wherein the first NTC thermistor is distal from said second portion of the wall, and the second NTC thermistor is proximal to said second portion of the wall;
wherein the first NTC thermistor and the second NTC thermistor are at a stretch of the heating element spaced apart from said first portion of the wall and facing said first portion of the wall;
wherein the first NTC thermistor and the second NTC thermistor are fixed to the outer face by means of said support;
wherein said support comprises a first part in contact with said first portion of the wall;
wherein the first NTC thermistor and the second NTC thermistor are fixed to said first part of the support;
wherein said first part of the support comprises a first zone and a second zone, between which at least one notch is provided, in particular to limit the transmission of heat between the first zone and the second zone of said first part of the support;
wherein the first NTC thermistor is fixed to the first zone and the second NTC thermistor is fixed to the second zone.