The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 10, 2025
Filed:
Jul. 31, 2020
Qingdao Haier Washing Machine Co., Ltd., Shandong, CN;
Haier Smart Home Co., Ltd., Shandong, CN;
QINGDAO HAIER WASHING MACHINE CO., LTD., Shandong, CN;
HAIER SMART HOME CO., LTD., Shandong, CN;
Abstract
An additive feeding device includes a water supply pipeline; a liquid storage box containing an additive; and a suction structure which includes a connecting pipeline which is at least partially connected with the water supply pipeline in parallel, the connecting pipeline is provided with a power unit for providing suction power, the liquid storage box is connected with the connecting pipeline, and the water supply pipeline and/or the connecting pipeline are/is provided with a control device for controlling the flow direction and/or on-off of a liquid in the pipeline. The control device is used for pumping the additive into the water supply pipeline, or enabling a fed water stream to flow through the connecting pipeline to flush a power device. The automatic feeding device can achieve the effect that the additive is sucked into the water supply pipeline through the suction structure and the suction structure is flushed.