ORAL IRRIGATOR
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Issued Date -
Jan 23, 2025
app pub date -
Oct 28, 2022
filing date -
Oct 28, 2022
priority date (Note) -
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Abstract
The present disclosure discloses an oral irrigator, including a plunger pump device for pumping a fluid. The plunger pump device includes: a piston cylinder, a piston cavity being enclosed by a side wall of the piston cylinder; a piston arranged in the piston cavity for a reciprocating movement and having a first end and a second end opposite to the first end; and a sealing member connected to the piston cylinder in a sealing manner; and a first cavity is enclosed by the piston, a first portion of the side wall of the piston cylinder, and the sealing member; a second cavity is enclosed by the piston, and a second portion of the side wall of the piston cylinder; and the first cavity and the second cavity are respectively located at the two opposite ends of the piston.
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