US 11,898,296 B2
Washing agent pump and laundry treating apparatus having the same
Sungwoon Jung, Seoul (KR); and Hunjun Jang, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Aug. 5, 2022, as Appl. No. 17/882,037.
Application 16/855,450 is a division of application No. 16/252,011, filed on Jan. 18, 2019, granted, now 11,078,618.
Application 16/252,011 is a division of application No. 15/392,052, filed on Dec. 28, 2016, granted, now 10,378,139.
Application 17/882,037 is a continuation of application No. 17/731,837, filed on Apr. 28, 2022.
Application 17/731,837 is a continuation of application No. 16/855,450, filed on Apr. 22, 2020, granted, now 11,339,521.
Claims priority of application No. 10-2016-0001255 (KR), filed on Jan. 5, 2016.
Prior Publication US 2022/0372690 A1, Nov. 24, 2022
Int. Cl. D06F 39/02 (2006.01); F04B 13/02 (2006.01); F04B 49/02 (2006.01); F04B 49/10 (2006.01); D06F 37/22 (2006.01); D06F 39/04 (2006.01); D06F 33/37 (2020.01); D06F 23/02 (2006.01); D06F 34/14 (2020.01); F04B 17/03 (2006.01); F04B 19/22 (2006.01); D06F 39/08 (2006.01); D06F 39/10 (2006.01); D06F 39/14 (2006.01)
CPC D06F 39/022 (2013.01) [D06F 23/02 (2013.01); D06F 33/37 (2020.02); D06F 37/22 (2013.01); D06F 39/04 (2013.01); F04B 13/02 (2013.01); F04B 49/02 (2013.01); F04B 49/106 (2013.01); D06F 34/14 (2020.02); D06F 39/028 (2013.01); D06F 39/085 (2013.01); D06F 39/10 (2013.01); D06F 39/14 (2013.01); F04B 17/03 (2013.01); F04B 19/22 (2013.01); F04B 2205/09 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A laundry treating apparatus, comprising:
a cabinet;
a tub to be within the cabinet;
a rotary tub to be within the tub; and
a washing agent supply unit configured to provide a washing agent for the tub;
wherein the washing agent supply unit comprises:
a storage container to be within the cabinet, and configured to store the washing agent;
a washing agent pump to couple to the storage container, and configured to communicate with the storage container,
wherein the washing agent pump comprises:
a passage forming member configured to provide a passage of the washing agent, the passage forming member including an intake valve to open and to close an inlet port of a pressing space, and a discharge valve to open and to close an outlet port of the pressing space;
an introduction end portion to protrude from the passage forming member and to couple to the storage container;
an introduction hole opening/closing member configured to close a hole formed at the introduction end portion by moving in a first direction from the hole and to open the hole by moving in an opposite direction of the first direction; and
a movement restriction member configured to restrict the movement of the introduction hole opening/closing member in the first direction and prevent separation of the introduction hole opening/closing member away from the washing agent pump, and
wherein when the introduction end portion is to couple to the storage container, the hole is positioned inside the storage container.