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:
Dec. 31, 2024
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, the water supply pipeline is provided with a rising convex part for increasing the height of a water path in the fed water stream direction, and the water supply pipeline on the upstream of the rising convex part is connected with a liquid storage box through a suction structure, and the additive pumped into the water supply pipeline flows to the upstream of the water supply pipeline in a countercurrent mode under the blocking action of the rising convex part. By means of the arrangement, the automatic feeding device can suck the additive into the water supply pipeline through the suction structure, the pumped additive flows to the upstream of the water supply pipeline in a countercurrent mode under the blocking action of the rising convex part arranged in the water supply pipeline.