公开(公告)号：US20250040777A1

公开(公告)日：2025-02-06

申请号：US18455259

申请日：2023-08-24

Applicant: SharkNinja Operating LLC

Inventor： Fai Xie ,  Shady Wei ,  Teddy Li ,  Kevin Richard Kennedy ,  Bob Yin

IPC: A47L11/40

Abstract: Various cleaning devices with fluid tank empty detection and methods related thereto are provided. In general, a cleaning device can be configured to determine whether a fluid container is empty using an electromotive force (EMF) at a fluid pump configured to pump fluid from the fluid container. When the fluid container becomes empty, fluid cannot be supplied from the cleaning device to a surface until more fluid is added to the fluid container. Thus, by determining whether the fluid container is empty, a user of the cleaning device may be made aware when the fluid container becomes empty and needs refilling (or replacement).