US 11,898,295 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 Apr. 28, 2022, as Appl. No. 17/731,837.
Application 16/855,450 is a division of application No. 16/252,011, filed on Jan. 18, 2019, granted, now 11,078,618, issued on Aug. 3, 2021.
Application 16/252,011 is a division of application No. 15/392,052, filed on Dec. 28, 2016, granted, now 10,378,139, issued on Aug. 13, 2019.
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 2022/0251760 A1, Aug. 11, 2022
This patent is subject to a terminal disclaimer.
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 deliver a washing agent to 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 an interior of the storage container,
wherein the washing agent pump comprises:
a passage member configured to provide a passage of the washing agent, the passage 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 end portion to protrude from the passage member and to couple to the storage container; and
a hole opening/closing member disposed at a part of the end portion, and configured to open and to close a hole formed on the end portion; and
wherein the hole opening/closing member is to move to a first position to open the hole, such that the storage container is to communicate to the hole and allow movement of the washing agent, and
wherein the hole opening/closing member is to move to a second position to close the hole, and to prevent a leakage of the washing agent in the passage through the hole, and
wherein when the end portion is to couple to the storage container, the hole is positioned inside the storage container.