Prototype. Chapter text drafted from the research notes and not yet checked at the archives. Images awaiting permission are marked.

"Barrel cam for driving needle and shear for electrically-operated carpet floc[king tool]" (CN2402698Y)

Patent · not yet checked at the source

Made by: applicant not seen
Date: 2000 (year only, from a Google Patents sitemap listing)
Number: CN2402698Y
Themes: Hand-tufting tools & the gun, Global diffusion of tufting

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Cite this source

“Barrel cam for driving needle and shear for electrically-operated carpet floc[king tool]” (CN2402698Y), 2000 (year only, from a Google Patents sitemap listing). patents.google.com/patent/CN2402698Y/zh.

Research notes

This may be the earliest Chinese patent found for an electric hand-tufting ("植绒", flocking) tool component: a cylindrical cam that drives both the needle and the scissors. It would date the electric carpet gun in China to about 2000, long before the 2019+ hobby boom. Verified Oct 2026 by web search only. patents.google.com and Espacenet could not be opened from the sandbox, so I did not read the document itself. The number, the truncated English title and the year come only from a Google Patents sitemap page for class D04G 3, as summarised in a search result. Two follow-up searches could not find the record. Confirm before use. Research note (Oct 2026): found through search results; the patent document itself wasn't opened. The Patent drawings job fetches the document from Google Patents; if drawings appear on this record, the number is confirmed.