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Patent Information & Production OptionsMotorized Hot Pot Chopsticks with Rotating, Detachable Magnetic Tips · Patent CN216438960U

Patent CN216438960U: bibliographic data, legal status, family, a plain-language reading of the claims, plus customization, US compliance points and how a manufacturing project runs.

At a glance

Patent numberCN216438960U (application CN202123027393)
TypeChina utility model (实用新型) - protects product shape and structure
Original titleChopsticks for hot pot (一种火锅用筷子)
Patent ownerLi Jiatong (individual)
InventorsLi Jiatong
Filing date2021-12-02
Grant date2022-05-06
Status (China)In force - no termination recorded; a China utility model lasts at most 10 years from filing (to 2031-12-02)
Patent familyChinese filings only - no US, European, Japanese, PCT or other filings listed
Cited by2 later documents
SourceGoogle Patents (search for CN216438960U)

What the claims cover, in plain language

Claim 1 - hot pot chopsticks made of an upper half and a lower half joined into a slim rod. The upper half has a drive cavity with a reciprocating drive assembly whose output is fixed to a connector at the end of the upper half; the lower half is detachably connected to the connector.

Claim 2 - the drive assembly is a battery tube, a micro motor at one end, a battery, a switch assembly in the outer face and a protective cap with a control board. Claim 3 - electrode seats connect the battery to the board. Claims 4-5 - the switch assembly is two conductive rods, two insulating rods and several micro switches side by side; conductive posts run in a guide groove on the battery tube. Claims 6-7 - two charging pins on the cap, with a protective cover. Further claims - a key and groove and magnets joining the lower half to the connector.

This is a simplified reading for orientation only. The legal scope is defined by the exact claim wording in the official Chinese document.

What this means for US production

This patent was filed only in China. It is still in force in China, so making or selling this design in China would need the owner’s permission while it lasts (at most until 2031-12-02). It has no US or other foreign counterpart and does not restrict the design outside China.

Two points to settle early:

  • Other patents may exist. Motorized utensils, rotating forks and training chopsticks have scattered US patents, so a freedom-to-operate (FTO) review of the drive, switch strip and magnetic tip is advisable before tooling.
  • Sealing. The handle must survive steam and splashes at the table; seals around the connector and charging pins are proven on samples.

Customization and manufacturing

What can be customized

AreaOptions
Lower halfFood-grade PPS or PA resin, stainless steel, fiberglass; ridged tips
Upper halfResin or metal shell, colors, laser-engraved patterns, logo
MotionRotation angle, speed and pattern set in the control board
ChargingPin charging dock for a pair, magnetic USB cable, case with battery
SizesStandard 250 mm, longer cooking length, children’s length
PackagingGift box for one or two pairs, restaurant sets

Things to plan for (US market)

  • FDA food contact (21 CFR 177 and stainless steel grades) - the lower half and any part that touches food must be food-contact compliant.
  • Lithium battery safety - the cell is tested to UL 2054 or IEC 62133, and shipped under UN 38.3.
  • FCC Part 15 - the control board is a digital device and needs FCC verification.
  • California Prop 65 - handle resins, coatings and paints are screened.
  • Heat and moisture - the handle is tested near boiling broth for warping and water ingress.

How a project runs

  1. Inquiry - materials, motion pattern, charging method and quantity.
  2. Design - shells, drive cavity, switch strip, magnetic coupling, seals.
  3. Prototype - working samples for table trials with hot pot broth.
  4. Pilot run - battery, FCC and food-contact testing; charging and drop tests.
  5. Production - shell molding or machining, motor and board assembly, packing in pairs.

Quantities & timeline

The upper and lower halves need precision injection molds (or machining for metal versions), the drive unit uses a sourced micro stepper motor and a small battery cell, and the switch strip and board are custom assemblies. Miniaturizing the drive and sealing it take the most time. Send us your materials, charging method, packaging, quantity and target price and we will reply with options.

Patent drawings

Motorized Hot Pot Chopsticks with Rotating, Detachable Magnetic Tips - Patent Fig. 1
Fig. 1 - The assembled chopstick.
Motorized Hot Pot Chopsticks with Rotating, Detachable Magnetic Tips - Patent Fig. 2
Fig. 2 - Section through the chopstick.
Motorized Hot Pot Chopsticks with Rotating, Detachable Magnetic Tips - Patent Fig. 3
Fig. 3 - The upper half.
Motorized Hot Pot Chopsticks with Rotating, Detachable Magnetic Tips - Patent Fig. 4
Fig. 4 - The upper half from below, showing the connector cavity.
Motorized Hot Pot Chopsticks with Rotating, Detachable Magnetic Tips - Patent Fig. 5
Fig. 5 - The lower half.
Motorized Hot Pot Chopsticks with Rotating, Detachable Magnetic Tips - Patent Fig. 6
Fig. 6 - The connector.
Motorized Hot Pot Chopsticks with Rotating, Detachable Magnetic Tips - Patent Fig. 7
Fig. 7 - The connector end face with magnet (6) and key slots (31).
Motorized Hot Pot Chopsticks with Rotating, Detachable Magnetic Tips - Patent Fig. 8
Fig. 8 - The drive assembly.
Motorized Hot Pot Chopsticks with Rotating, Detachable Magnetic Tips - Patent Fig. 9
Fig. 9 - Further detail from the patent drawings.
Motorized Hot Pot Chopsticks with Rotating, Detachable Magnetic Tips - Patent Fig. 10
Fig. 10 - Further detail from the patent drawings.
Motorized Hot Pot Chopsticks with Rotating, Detachable Magnetic Tips - Patent Fig. 11
Fig. 11 - Further detail from the patent drawings.
Motorized Hot Pot Chopsticks with Rotating, Detachable Magnetic Tips - Patent Fig. 12
Fig. 12 - Further detail from the patent drawings.
Motorized Hot Pot Chopsticks with Rotating, Detachable Magnetic Tips - Patent Fig. 13
Fig. 13 - Further detail from the patent drawings.
Motorized Hot Pot Chopsticks with Rotating, Detachable Magnetic Tips - Patent Fig. 14
Fig. 14 - Further detail from the patent drawings.
Motorized Hot Pot Chopsticks with Rotating, Detachable Magnetic Tips - Patent Fig. 15
Fig. 15 - Further detail from the patent drawings.

Drawings reproduced from the public patent document for reference.

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  4. 4 Pilot run Small first batch for launch customers
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This page is based on the public patent document CN216438960U, assigned to Li Jiatong (individual). IP2M is an independent manufacturing service and is not affiliated with, endorsed by or licensed by the patent owner. Images marked as concept renderings are illustrations, not photos of an existing product. Patent status information is provided for reference only and is not legal advice; confirm freedom to operate for your market before production. Full disclaimer.