US 12,140,133 B2
Dispenser
Takashi Yamada, Machida (JP)
Assigned to Kao Corporation, Tokyo (JP)
Appl. No. 17/762,672
Filed by Kao Corporation, Tokyo (JP)
PCT Filed Jul. 17, 2020, PCT No. PCT/JP2020/027975
§ 371(c)(1), (2) Date Mar. 22, 2022,
PCT Pub. No. WO2021/059696, PCT Pub. Date Apr. 1, 2021.
Claims priority of application No. 2019-174809 (JP), filed on Sep. 25, 2019.
Prior Publication US 2022/0412335 A1, Dec. 29, 2022
Int. Cl. F04B 43/02 (2006.01)
CPC F04B 43/02 (2013.01) 20 Claims
OG exemplary drawing
 
1. A dispenser, comprising:
a pump chamber formed by a body including a depression and a lid body covering an opening of the body, wherein a first liquid in the pump chamber is discharged from a nozzle portion by performance of a discharge operation that presses the lid body into an inside of the pump chamber to deform the lid body, and a second liquid is caused to flow into the pump chamber by release of the discharge operation; and
a coil spring that is arranged in the pump chamber and urges the lid body to an outside of the pump chamber, wherein
a diameter of the coil spring is larger than a radius of the lid body, and
a deformation amount of the lid body is equal to or more than ⅓ of a diameter of the lid body.