Pastel stick sharpener

Details Pastel stick sharpener Pastel stick sharpener

2007-06-12

2007-06-12

Banks, Derris H. (Department: 3725)

Solid material comminution or disintegration

Apparatus

Comminuting surface provided with openings to permit...

C030S455000, C007S158000, C019S05500R

Reexamination Certificate

active

10950761

ABSTRACT:
A device for sharpening and shaping pastel sticks, and for storing pastel powder collected. The pastel stick sharpener is comprised generally of a powder receptacle, a screen removably carried by the powder receptacle, and a lid for securing the screen and for selectively sealing the volume within the receptacle. The receptacle defines an opening adapted to receive the screen. The screen defines a collar at an upper end thereof. The lid includes a ring and a seal member. The ring is configured to be received over the receptacle opening and the screen such that the screen is securely mounted within the receptacle. The lid ring defines a central opening, through which a pastel stick to be sharpened is passed. The seal member is removable for sharpening a pastel stick and replaceable in order to retain the contents of the receptacle.

REFERENCES:
patent: 575947 (1897-01-01), Hart
patent: 1666215 (1928-04-01), Miller
patent: 2087101 (1937-07-01), Cerracchio
patent: 2653576 (1953-09-01), Slattery
patent: 2786476 (1957-03-01), Garson
patent: 4616748 (1986-10-01), Thomas et al.
patent: 6397479 (2002-06-01), Luttgens
patent: 6620214 (2003-09-01), McArdle et al.

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