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US 6,381,856 B2Granted
Hand-held sharpener as a container-type sharpener
AssigneeKUM Limited
InventorFritz Lüttgens
Life of this patent
Estimating the term…
Abstract
A container-type sharpener is provided with a generator that can be manually operated or set off and provides an acoustic or visual effect. For this purpose, a shavings-collecting container is configured to be compressible against a flexible restoring pressure and the effect generator is pressure-operated or pressure-controlled.
Claims13
A hand-held, container-type sharpener for encased and unencased pencil cores, comprising:
- a shavings-collecting container being compressible with regard to a volume received;
- and
- an effect generator operated/triggered by hand and providing one of an acoustic effect and a visual effect, said effect generator at least partially disposed in said shavings-collecting container and being one of operated and controlled by a compressive pressure exerted on said shavings-collecting container.
Dependencies are inferred from the claim text.