Cutlery – Static pencil sharpener – With debris receiver
Reexamination Certificate
2008-06-24
2008-06-24
Payer, Hwei-Siu C. (Department: 3724)
Cutlery
Static pencil sharpener
With debris receiver
C144S028110
Reexamination Certificate
active
07389588
ABSTRACT:
The present invention relates to a semi-automatic pencil sharpener comprising a sharpening body and a blade; the sharpening body has a conical bore with a throughslot for allowing shavings to go out; and the blade is disposed outside the sharpening body on one side of the shavings throughslot; an external housing is disposed outside the sharpening body; the external housing comprises a pencil fixation casing and a rotation casing which can rotate opposite to each other; the pencil fixation casing and the rotation casing are removably engaged with each other. The present pencil sharpener can be operated with one hand. It is convenient to use in comparison with available products and has a high degree of automation. Pencil shavings produced from pencil sharpening using the present invention can be stored in the pencil sharpener without falling out affecting hygiene. The present invention is therefore relatively easy to clean up and is environmental friendly. It also has the advantages of being small in size, easy to carry around and good for application.
REFERENCES:
patent: 2188130 (1940-01-01), Baier et al.
patent: 2439252 (1948-04-01), Jordan
patent: 2769428 (1956-11-01), Onanian
patent: 2995112 (1961-08-01), Calhoun
patent: 3561507 (1971-02-01), Dziuk
patent: 4755074 (1988-07-01), Roberts
patent: 5394613 (1995-03-01), Ku
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