Invention Application
- Patent Title: CLEANING APPLIANCE
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Application No.: US15714219Application Date: 2017-09-25
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Publication No.: US20180084898A1Publication Date: 2018-03-29
- Inventor: Christopher Graham VINCENT , Robert Lawrence TWEEDIE , Jason Godfrey JONES , Robert Stefan WRONSKI , Philip Stephen DARLING , Edward Michael WAUGH
- Applicant: Dyson Technology Limited
- Applicant Address: GB Wiltshire
- Assignee: Dyson Technology Limited
- Current Assignee: Dyson Technology Limited
- Current Assignee Address: GB Wiltshire
- Priority: GB1616272.9 20160926
- Main IPC: A46B11/00
- IPC: A46B11/00 ; A46B15/00

Abstract:
A pump assembly for a dental cleaning appliance includes a fluid chamber, a piston, and a drive. Magnets, connected respectively to the piston and the drive, enable the drive to couple to the piston and move it within the fluid chamber to draw fluid into the fluid chamber. A stop prevents the piston from being pulled beyond a stop position so that through continued actuation of the drive the magnets separate to allow a spring to push the piston away from the stop position to urge a burst of fluid from the fluid chamber.
Public/Granted literature
- US11116306B2 Cleaning appliance Public/Granted day:2021-09-14
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