Samsung patents washing machine part that mixes detergent with a piston
Samsung has filed a patent for a washing machine that uses a specific mechanical design to deliver detergent. The system features a cylinder and a moving piston that work together to compress and push the detergent into the drum where the clothes are.
In the filing’s own words
A washing machine including a tub, a drum to be disposed inside the tub and configured to accommodate laundry, and a detergent supply device including a cylinder to form a compression space to accommodate detergent to be supplied to the drum, and a piston configured to be moveable along the cylinder to adjust a volume of the compression space, the piston including a piston body, and a seal cap configured to be in close contact with an inner surface of the cylinder and be in close contact with the piston body.
What exactly they claim (claim 1)
1. A washing machine, comprising: a tub; a drum, to be disposed inside the tub, configured to accommodate laundry; and a detergent supply device including: a cylinder to form a compression space to accommodate detergent to be supplied to the drum; and a piston configured to be moveable along the cylinder to adjust a volume of the compression space, the piston including a piston body and a seal cap configured to be in close contact with an inner surface of the cylinder and in close contact with the piston body, wherein the piston is formed by injection molding the seal cap with the piston body inserted therein.
Facts
- Company
- Samsung (SAMSUNG ELECTRONICS CO., LTD.)
- Official title
- WASHING MACHINE
- Publication number
- US20260308830A1
- Application number
- 19682101
- Filed
- May 19, 2026
- Published
- Oct 8, 2026
- Inventors
- 5
- Claims
- 14
Classified under
D06F 39/022 Textiles & paperF04B 19/04 Mechanical engineeringD06F 2105/42 Textiles & paperMore from Samsung in Other
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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.