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SamsungGranted patentOtherInterest 3/10

Samsung patents washing machine drawer that filters water before it reaches the tub

Patent drawing
Patent drawing from the official filing.

Samsung has been granted a patent for a washing machine design that integrates a filter directly into the detergent drawer. Water flows through this drawer, passing through the filter to remove impurities before entering the main washing tub. A switching device then directs this filtered water either back into the tub for circulation or out of the machine to drain.

Why it mattersThis design aims to improve water quality during the wash cycle by filtering it at the source, which could help maintain cleaner clothes and reduce residue.

In the filing’s own words

A washing machine may include: a housing; a tub inside the housing; a drawer case in the housing and including an inlet and outlet through which water is flowable; a drawer insertable into, and withdrawable from, the drawer case, and configured to receive a detergent; a filter detachably mountable in the drawer and configured so that, with the filter mounted in the drawer and the drawer inserted into the drawer case, water that flows into the drawer case through the inlet passes through the filter and then flows out through the outlet; a circulation pipe to guide, to the tub, water that flows out of the outlet; a drain pipe to guide, to an outside of the housing, water that flows out of the outlet; and a flow path switching device configured to flow the water that flows out of the drawer case into the circulation and/or drain pipe.

What exactly they claim (claim 1)

1. A washing machine comprising: a housing; a tub inside the housing; a drawer case in the housing and including an inlet portion through which washing water is flowable into the drawer case and an outlet portion through which the washing water is flowable out of the drawer case; a drawer insertable into, and withdrawable from, the drawer case, and configured to receive a detergent to be supplied to the tub; a filter detachably mountable in the drawer and configured so that, with the filter mounted in the drawer and the drawer inserted into the drawer case, the washing water that flows into the drawer case through the inlet portion passes through the filter so as to be filtered by the filter and then flows out of the drawer case through the outlet portion; a circulation pipe to guide, to the tub, washing water that flows out of the drawer case through the outlet portion; a drain pipe to guide, to an outside of the housing, washing water that flows out of the drawer case through the outlet portion; and a flow path switching device configured to flow the washing water that flows out of the drawer case through the outlet portion into at least one of the circulation pipe and the drain pipe.

Facts

Company
Samsung (SAMSUNG ELECTRONICS CO., LTD.)
Official title
Washing machine
Patent number
US12768093B2
Application number
18952051
Filed
Nov 19, 2024
Granted
Oct 20, 2026
Inventors
4
Claims
15

Classified under

D06F 39/028 Textiles & paperD06F 39/083 Textiles & paperD06F 39/10 Textiles & paperD06F 39/12 Textiles & paper

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.