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Patent Information & Production OptionsCam-Lock Telescopic Pole for Garden Power Tools · Patent CN205812889U

Patent CN205812889U: 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 numberCN205812889U (application CN201620805037)
TypeChina utility model (实用新型) - protects product shape and structure
Original titleTelescopic garden tool (一种可伸缩园林工具)
Patent ownerNingbo Clover (Sanye) Tools Co., Ltd.
InventorKong Xianlong
Filing date2016-07-28
Grant date2016-12-21
Status (China)Lapsed - terminated for non-payment of annual fees (recorded 2026-07-24); a license to Ningbo Jiye Electric Appliance Co., Ltd. was recorded in 2025
Patent familyChinese filings only - no US, European, Japanese, PCT or other filings listed
Cited by2 later documents
SourceGoogle Patents (search for CN205812889U)

What the claims cover, in plain language

Claim 1 - a telescopic garden tool whose telescopic pole slides in a first sleeve with a locking device: an axial slot at the sleeve end, a lever seat and a nut seat on either side, and a lever with an eccentric round end and an opening holding a pin and a bolt that passes through lever, pin and both seats; the lever turns about the pin.

Claim 2 - the same locking device on a second sleeve that holds the detachable tool head. Claim 3 - a corner on the cam and a stop rib on the seat. Claims 4-5 - a square boss and a baffle that stop the lever turning outward. Claims 6-7 - square holes in the second sleeve and two spring-joined buttons on the head that snap into them; the buttons have a sloped top. Claim 8 - a pin and a bump on the head. Claims 9-10 - a non-round, tear-drop shaped joint between sleeve and head.

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 it lapsed for non-payment of annual fees (recorded in July 2026). It no longer restricts anyone - in China or elsewhere.

Before production, keep in mind:

  • Other patents may exist. Pole tools and attachment systems are made by large outdoor-power-equipment brands with US patents on couplers and pole locks. Use your own coupler design and have a freedom-to-operate (FTO) search done by a US patent attorney before volume production.

Customization and manufacturing

What can be customized

AreaOptions
PoleAluminum or fiberglass; lengths and number of sections - to be confirmed in design
ClampsPlastic or aluminum cam levers; lever size for gloved hands
Head couplerTear-drop socket sized for your heads; button style
HeadsPruner, hedge trimmer, pole saw, or pole only for your existing heads
PowerCorded, battery (your platform), or manual tools
Colors & brandingBrand colors and logos

Things to plan for (US market)

  • Power-tool safety - powered pole tools need safety certification (for example UL/ETL to the relevant standard); battery packs need UN38.3.
  • Overhead hazards - include warnings about power lines and falling branches; non-conductive poles where appropriate.
  • Labels - country of origin; check plastics against California Proposition 65.

How a project runs

  1. Inquiry - tool type, pole length and quantity.
  2. Design - clamp and coupler sizing, pole tubes.
  3. Prototype - samples for clamp force, slip and head-retention tests.
  4. Pilot run - small batch to check molding and assembly.
  5. Production - volume production, packaging and shipping.

Quantities & timeline

Sleeves, levers and the coupler are molded parts; the pole is standard tube. Send us your tool type, pole length, quantity and target price and we will reply with options.

Patent drawings

Cam-Lock Telescopic Pole for Garden Power Tools - Patent Fig. 1
Fig. 1 - The whole tool: handle, support tube, telescopic pole and tool head.
Cam-Lock Telescopic Pole for Garden Power Tools - Patent Fig. 2
Fig. 2 - Section A-A through the first clamp: 11 lever seat; 12 nut seat; 13 slot; 14 lever; 15 pin; 16 bolt; 17 nut; 18 boss; 28 opening.
Cam-Lock Telescopic Pole for Garden Power Tools - Patent Fig. 3
Fig. 3 - Section through the second clamp and head socket: 24 buttons; 25 spring.
Cam-Lock Telescopic Pole for Garden Power Tools - Patent Fig. 4
Fig. 4 - The two clamps on the pole: 2 support tube; 3 telescopic pole; 5, 6 sleeves.
Cam-Lock Telescopic Pole for Garden Power Tools - Patent Fig. 5
Fig. 5 - Head and sleeves separated: 26 pin; 27 bump.
Cam-Lock Telescopic Pole for Garden Power Tools - Patent Fig. 6
Fig. 6 - Lever closed: 14 lever; 19 stop rib; 20 cam corner; 22 ribs.
Cam-Lock Telescopic Pole for Garden Power Tools - Patent Fig. 7
Fig. 7 - Lever open.

Drawings reproduced from the public patent document for reference.

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Bring this product to market

  1. ✓ Patent vetted China-only family and legal status checked
  2. 2 Product brief · now How it works, uses and options written up
  3. 3 Prototype First samples for buyers to review
  4. 4 Pilot run Small first batch for launch customers
  5. 5 Volume production Repeat orders at scale

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This page is based on the public patent document CN205812889U, assigned to Ningbo Clover (Sanye) Tools Co., Ltd.. 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.