Electrically heated color crayon pointer

Details Electrically heated color crayon pointer Electrically heated color crayon pointer

1990-08-15

1992-09-29

Bartis, Anthony

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

156499, 219242, 219390, 219421, 425383, 425392, B29C 3302, H05B 300

Patent

active

051515750

ABSTRACT:
A color crayon pointer for reforming the point on used color crayons includes an elongated horizontally disposed housing (21) extending from a rear end (24) to a front end (22) along a pointing axis, with the front end having an opening aligned with the pointing axis through which the crayon end to be pointed is inserted. A metallic anvil (40) heated by an electric heater (44) is mounted in the housing and has a conical recess (42) concentric with the pointing axis for shaping the end of the crayon inserted through housing opening. A crayon guide (36) having a guide collar (37) spaced forward of the housing opening and the anvil (40) prevents inadvertent user contact with the anvil (40) while also insuring proper alignment of the crayon with the anvil recess (42) as it is inserted into the housing. The housing (21) is made of plastic and has vents (56,58) to provide efficient insulation and air cooling for the heating element (44) and anvil (40) to maintain the outer wall ( 26) of the housing near room temperature.

REFERENCES:
patent: 1754993 (1930-04-01), Fenton
patent: 2733478 (1956-02-01), Schwieger
patent: 3436171 (1969-04-01), Weichselbaum et al.
patent: 4103145 (1978-07-01), Oliveri
patent: 4456451 (1984-06-01), Vosper
patent: 4827695 (1989-05-01), Logan

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