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US 2018/0237652 A1Published application
Writing instrument and related production method
AssigneeSignature S.R.L.
InventorAndrea BETTANCINI
Life of this patent
Estimating the term…
Abstract
Writing instrument (1) comprising a writing element (20) having a body (21) delimited by an end (22) coated with a metal material suitable to trace signs on paper through oxidation, and method for producing the writing element (20).
Claims14
Writing element (20) for a writing instrument (1) comprising an elongated member/stem (10) having a grip portion (12) longitudinally delimited by an end portion (14);
- said stem (10) having a longitudinal cavity (16) of given extension;
- said writing element (20) having a body (21) delimited by an end (22) provided with a point (23) suitable, in use, to draw signs on paper through oxidation;
- said body (21) having an elongated coupling portion (24) provided with respective connecting means (26) suitable to engage said cavity (16);
- characterized in that said end (22) is covered by a cover (28) comprising said point (23) and is made of a bi-component metal alloy comprising bismuth and tin.
1 more element
Method for the production of a writing element (20) according to claim 1, to equip a writing instrument according to claim 12;
- characterized by comprising a step of melting a first given metal;
- a step of melting a second given metal;
- a step of mixing the first and the second melted metals according to given proportions to originate a melted homogeneous alloy;
- a step of melting at least a body (21) provided with an end (22) that is made of this metal alloy and is provided with a point (23) suitable to draw signs on paper through oxidation.
1 more element
Dependencies are inferred from the claim text.