Invention Grant
- Patent Title: Two-piece foam piston pump
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Application No.: US17729650Application Date: 2022-04-26
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Publication No.: US11974705B2Publication Date: 2024-05-07
- Inventor: Andrew Jones , Heiner Ophardt , Zhenchun Shi
- Applicant: OP-Hygiene IP GmbH
- Applicant Address: CH Niederbipp
- Assignee: OP-Hygiene IP GmbH
- Current Assignee: OP-Hygiene IP GmbH
- Current Assignee Address: CH Niederbipp
- Agency: Thorpe North & Western, LLP.
- Priority: CA 37774 2013.12.20
- Main IPC: A47K5/12
- IPC: A47K5/12 ; A47K5/14 ; B05B11/00 ; B05B11/10 ; B67D3/02 ; B67D7/58
Abstract:
A piston pump for dispensing fluid from a reservoir, an improved vacuum relief arrangement in which a passageway for flow of air from the atmosphere into the reservoir is provided at least in part through a piston-forming element of the piston pump.
Public/Granted literature
- US20220240730A1 Two-Piece Foam Piston Pump Public/Granted day:2022-08-04
Information query
