Screwdriver with a co‑extruded internal identifier
A manual screwdriver whose polymer handle contains a molded internal structure running substantially the handle length that identifies a tool characteristic (tip type, size, length, etc.). The internal structure is co‑extruded with the outer handle and is visible through a partially translucent outer portion or from the handle ends; used by tradespeople and DIYers to identify screwdrivers without viewing tips. The handle is formed by concurrently extruding two materials through separate dies to create the outer portion and the inner identifier.
(57) What the patent covered
This write-up was generated by AI from the patent's text and may contain mistakes, so check it against the original patent before relying on it.
The main independent claim covers a screwdriver having a shaft and a handle whose outer portion contains an inner structure co‑extruded concurrently with the outer portion, the inner structure formed substantially the length of the outer portion and serving as an identifier of at least one screwdriver characteristic (for example tip size or type).
Distinguishing feature: An inner, shaped identifier that is co‑extruded concurrently with the handle and visible through a partially translucent outer portion or from the handle ends.
Novelty 3/5. Color coding and printed labels on handles were common; the patent adds a co‑extruded internal shaped element running the handle length as the identifying feature.
Manufacturing
Co‑extrusion through a dual‑die extruder to form a two‑material handle, injection or overmolding of the shaft into the co‑extruded handle, final machining/heat treatment of the shaft, and assembly; simple post‑molding cutting/polishing of handle ends for visibility.
Materials: Thermoplastic outer material (partially translucent), Second thermoplastic for inner structure (contrasting color), Steel shaft (hardened tool steel).
Manufacturability 4/5. Requires co‑extrusion tooling (dual feed die) plus standard shaft molding/overmolding and hand or automated assembly; part count low but needs extrusion tooling and controlled translucency/colors.
Market demand
Comparable products are on sale; this exact design was not found. Typical retail price: $6. One readily identifiable translucent handle with inlay; commonly sold by DIY/hardware retailers
- Master Mechanic 103595 Round Phillips Screwdriver, # 2 x 6" · Toolbox Supply$5.79
Demand check by web search, week of Oct 19, 2026. Listings change frequently.
Buyers: Tradespeople and DIYers organizing multiple screwdrivers.
Before manufacturing
No related continuation or divisional patents in force were found. Design patents, trademarks and unrelated patents may still cover the product.
None obvious; potential issues include controlling translucency/color contrast in production and ensuring the identifier remains visible after wear or overmolding; the claim is limited to co‑extruded inner structures formed substantially the handle length.
This patent's full term ends on Oct 24, 2026. A patent that has run its full term cannot be revived. This page is a research lead, not legal advice. Obtain a freedom-to-operate opinion before manufacturing.