Sharpener, in particular for soft-core pencils

Patent 6397479 Issued on June 4, 2002. Estimated Expiration Date:

May 23, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

1263738

Cosmetic pencil sharpener
Patent #: 4248283
Issued on: 02/03/1981
Inventor: Kaye

Cosmetic pencil sharpener
Patent #: 5167071
Issued on: 12/01/1992
Inventor: Eisen

Soft core pencil sharpener including cleaning shaper
Patent #: 5845406
Issued on: 12/08/1998
Inventor: Luttgens

Sharpener for soft core pencils Patent #: 5894669
Issued on: 04/20/1999
Inventor: Luttgens

Inventor

Luttgens, Fritz

Assignee

KUM Limited

Application

No. 575913 filed on 05/23/2000

US Classes:

30/454, Conical or cylindrical work guide30/453, With debris receiver30/457, Having conical or cylindrical work guide144/28.11Hand-manipulable

Examiners

Primary: Ashley, Boyer D.

Attorney, Agent or Firm

Greenberg; Laurence A., Stemer; Werner H., Mayback; Gregory L.

Foreign Patent References

37 37 863 DE. 08/20/1988
44 40 271 DE. 05/20/1996
0 872 356 EP. 10/20/1998

International Class

B43L 023/00

Foreign Application Priority Data

1999-07-23 DE

Abstract

A sharpener, in particular for soft-core pencils, includes a sharpener housing which carries a sharpener blade positioned tangentially in relation to a sharpener channel. The housing also has a free space that is open on a lower side of the housing. A core shaper can be introduced, preferably pivoted, from the lower side of the housing into the free space through a carrier plate which carries the core shaper and can be secured on the sharpener housing.