US 12,303,342 B2
Liquid processing nozzle for purifying liquid piping of dental device
Hiroyuki Kawai, Tokyo (JP); and Masahiko Tanaka, Tokyo (JP)
Assigned to WASEDA BUSINESS CONSULTING CO., LTD., Tokyo (JP); and NEW ENVIRONMENTAL TECHNOLOGY COUNCIL, Tokyo (JP)
Appl. No. 17/769,564
Filed by Waseda Business Consulting Co., Ltd., Tokyo (JP); and New Environmental Technology Council, Tokyo (JP)
PCT Filed Sep. 30, 2020, PCT No. PCT/JP2020/037076
§ 371(c)(1), (2) Date Apr. 15, 2022,
PCT Pub. No. WO2021/075260, PCT Pub. Date Apr. 22, 2021.
Claims priority of application No. 2019-190685 (JP), filed on Oct. 18, 2019.
Prior Publication US 2024/0122674 A1, Apr. 18, 2024
Int. Cl. A61C 1/00 (2006.01)
CPC A61C 1/0076 (2013.01) 20 Claims
OG exemplary drawing
 
1. A liquid processing nozzle to be connected to a liquid piping between a handpiece and a water supply source piping, the liquid processing nozzle comprising:
a nozzle body in which a liquid inlet, a liquid outlet, and a liquid flow path communicating the liquid inlet and the liquid outlet are formed; and
a plurality of protrusions protruding from an inner surface of the liquid flow path into the liquid flow path,
wherein the plurality of protrusions are arranged so that protrusion amounts of the plurality of protrusions protruding from the inner surface of the liquid flow path into the liquid flow path gradually increase as they go from an upstream side to a downstream side of the liquid flow path in a flow direction of a liquid from the liquid inlet to the liquid outlet.