Pen

• US 20020190966A1
• Filed: 06/14/2002
• Published: 12/19/2002
• Est. Priority Date: 06/15/2001
• Status: Active Grant

• Current Assignee: Anoto Group AB
• Original Assignee: Anoto Group AB
• Inventors: Fermgard, Bjorn
• Granted Patent: US 7,671,850 B2
• Time in Patent Office: Days
• US Class Current: 345/179
• CPC Class Codes: G06F 3/03545 Pens or stylus

Abstract

An electronic pen has a body which comprises a casing (2) consisting of at least two casing parts (2a, 2b) which are joined to be openable, and electronic equipment arranged inside the casing. A girdle (3) is arranged with a close fit round the joined casing parts (2a, 2b). The casing (2) and the girdle (3) have coacting locking means which limit the movement of the girdle in the longitudinal direction of the pen (1) in such manner that at least the girdle (3) is destroyed as the locking is broken.

Claims

1. An electronic pen which has a body comprising a casing (2) consisting of at least two casing parts (2a, 2b) which are joined to be openable, and electronic equipment arranged inside the casing (2), characterized in that a girdle (3) is arranged with a close fit round the joined casing parts (2a, 2b), said casing (2) and said girdle (3) having coacting locking means which limit the movement of the girdle in the longitudinal direction of the pen (1) in such manner that at least the girdle (3) is destroyed as the locking is broken.

2. An electronic pen as claimed in claim 1, in which the girdle (3) is inserted in the casing material.

3. An electronic pen as claimed in claim 1 or 2, in which the casing (2) is provided with a circumferential bead (5) behind which the girdle (3) is fixed by snap action.

4. An electronic pen as claimed in any one of claims 1-3, in which the girdle (3) is formed with at least one slot (6) at least at one end.

5. An electronic pen as claimed in claim 4, in which the casing (2) has a tongue (7) which engages in said slot (6) on the girdle (3).

6. An electronic pen as claimed in any one of claims 1-5, in which the girdle (3) is arranged over a longitudinal portion of the casing (2) where a user holds the pen (1) when used.

7. An electronic pen as claimed in any one of claims 1-6, in which the girdle (3) is made of a plastic material selected from thermoplastics or thermosetting plastics.

8. An electronic pen as claimed in any one of claims 1-6, in which the girdle (3) is made of metal.

9. An electronic pen as claimed in any one of claims 1-8, in which the girdle (3) is arranged to cover means for the openable joining of the two parts of the casing (2).

10. An electronic pen as claimed in any one of claims 1-9, in which the casing (2) has a truncated conical portion (4) on to which a girdle (3) of a corresponding shape is slipped.

11. An electronic pen (1) as claimed in claim 10, in which the girdle (3) is formed with a slot (6) at its narrow end.

14. A girdle as claimed in claim 12, which is sleeve-shaped.

15. A girdle as claimed in claim 13 or 14, which has at least one slot at least at one end.

19. A girdle as claimed in claim 18, which is formed with a slot at its narrow end.

12. A method of providing a pen with a guarantee seal, said pen having a body which comprises at least two casing parts which are joined to be openable, comprising the step of

slipping a girdle with a close fit on to a correspondingly formed portion of the pen.

13. A girdle for providing a pen with a guarantee seal, characterized in that it comprises locking means which are arranged to provide, in coaction with the pen, locking between the pen and the girdle to limit the movement of the girdle in the longitudinal direction of the pen in such manner that at least the girdle is destroyed as the locking is broken.

16. A girdle as claimed in any one of claims 13-15, which is made of a plastic material selected from thermoplastics or thermosetting plastics.

17. A girdle as claimed in claims 13-15, which is made of metal.

18. A girdle as claimed in any one of claims 13-17, which has the shape of a truncated cone.