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ORAL IRRIGATOR
专利权人:
WATER PIK; INC.
发明人:
Harold A. Luettgen,Oscar Senff,Brian Woodard,Blaine Hanson,Jonathan Huber
申请号:
US16877081
公开号:
US20200276003A1
申请日:
2020.05.18
申请国别(地区):
US
年份:
2020
代理人:
摘要:
In one embodiment, an oral irrigator including a reservoir, a tip fluidly connected to the reservoir, a motor having a drive shaft, and a pump. The pump includes a pump body including a pump inlet fluidly connected to the reservoir and a pump outlet fluidly connected to the tip, a spiral pinion gear including a plurality of pinion gear teeth that curve along their length, and a spiral driven gear including a plurality of driven gear teeth that mesh with the pinion gear teeth. The pump also may include a connecting rod eccentrically connected to the driven gear and a piston and received within the pump body. Movement of the drive shaft causes the pinion gear to rotate, causing the driven gear to rotate, translating the connecting rod and moving the piston laterally within the pump body to pull fluid from the reservoir and push the fluid to the tip.
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