At a glance
| Patent number | CN205574145U (application CN201620368158) |
| Type | China utility model (实用新型) - protects product shape and structure |
| Original title | Integrative bassinet bottle cage of plastics (一种塑料一体童车水壶架) |
| Patent owner | Individual |
| Inventors | Gu Yuzhuo |
| Filing date | 2016-04-27 |
| Grant date | 2016-09-14 |
| Status (China) | Lapsed - terminated for non-payment of annual fees (recorded 2018-05-15) |
| Patent family | Chinese filings only - no US, European, Japanese, PCT or other filings listed |
| Cited by | 0 later documents |
| Source | Google Patents (search for CN205574145U) |
What the claims cover, in plain language
Claim 1 - a plastic one-perambulator kettle-frame (bottle cage) comprising a plastics integral support (1), a spiral press-from-both-sides bundle (2), a support member (3), an oval screw hole (4), and circular screw holes (5). The spiral bundle is provided on the integral support and is designed as an integral structure with it. The tail portion of the support has the support member, which is also integral. The middle part of the support member has the oval screw hole, and the two ends have the circular screw holes respectively.
Claim 2 - specifies that the spiral bundle (2) and the support member (3) are all made of plastic material.
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 and has lapsed, so it no longer restricts anyone in China either. It has no US or other foreign counterpart.
Two points to settle early:
- Other patents may exist. Stroller accessories are a competitive field with numerous utility and design patents held by major brands like Bugaboo, UPPAbaby, and Graco. While this specific one-piece spiral design is not protected internationally, similar mounting mechanisms or aesthetic shapes may be covered by other US patents. A freedom-to-operate (FTO) review is recommended before tooling.
- Material Safety. Since this is a baby product, the choice of plastic must meet strict safety standards regarding leachables and phthalates. The patent mentions “plastic” generally; you must specify food-contact-grade or toy-safe polymers (e.g., PP, ABS) in your production plan.
Customization and manufacturing
What can be customized
| Area | Options |
|---|---|
| Color | Any Pantone color matching for brand alignment |
| Finish | Matte, glossy, or textured surfaces to improve grip |
| Size | Diameter of the spiral clamp to fit specific stroller tube sizes (e.g., 20mm, 25mm) |
| Hole Spacing | Distance between oval and circular holes to match different stroller bracket standards |
| Bottle Cradle | Internal ribbing or padding integration for glass vs. plastic bottles |
Things to plan for (US market)
- CPSC 16 CFR 1203 / ASTM F833: Stroller safety standards. While this is an accessory, if marketed as part of a stroller system, it must not compromise the stroller’s stability or create pinch points.
- CPSIA (Consumer Product Safety Improvement Act): Lead and phthalate limits for children’s products. Testing of the plastic material is mandatory.
- FDA 21 CFR 177: If the bottle holder comes into contact with food containers, the plastic must comply with food-contact regulations.
- California Prop 65: Screening for chemicals known to cause cancer or reproductive harm in plastics and additives.
How a project runs
- Inquiry - Define target stroller frame diameters and bottle sizes.
- Design - CAD modeling of the spiral clamp pitch and mounting hole geometry.
- Prototype - 3D printing or soft tooling samples for fit testing on actual strollers.
- Testing - Drop tests, torque tests on mounting holes, and chemical safety screening.
- Production - Injection molding, color mixing, and quality control checks.
Quantities & timeline
Injection molds for single-piece plastic parts are cost-effective but require precise steel work to ensure the spiral thread engages smoothly without flash. Tooling typically takes 4-6 weeks. Send us your target frame diameter, preferred plastic type, quantity, and target price and we will reply with options.
Patent drawings
Drawings reproduced from the public patent document for reference.
