Pencils
AssigneeMessrs. Schwan-Stabilo Schwanhausser GmbH & Co.
InventorsPeter Kruckel, Wolfgang Winkler
Life of this patent
Estimating the term…
Abstract
A pencil, in particular for cosmetic purposes, is made by casting a stick composition into a tubular body, which forms the shaft of the pencil and is preferably seamless, in such a way that a ready-to-use exposed stick point is formed during casting. The shaft may be of wood or plastics. In the case of a wooden shaft, a solid wooden rod of twice the shaft length may be bored out and otherwise worked and then separated along a central plane transverse to the axis of the rod to form a pair of shafts into which the stick composition can subsequently be cast.
Claims7
A method of making a pencil for cosmetic purposes that can be sharpened, comprising the steps of:
- preparing a tubular wooden shaft with an axial through-bore, coating the bore with a material, placing said shaft into a mold extending beyond one end of said axial through-bore, and casting a cosmetic stick composition into said bore from the other end of said through-bore so as to fill the space beyond said one end to form a point, said coating being made from a material adapted to counter penetration of said wooden shaft by said cosmetic composition.
Dependencies are inferred from the claim text.