Writing instrument

Details Writing instrument Writing instrument

1978-12-26

1980-10-14

Yasko, John D.

Coating implements with material supply

Projectable and retractable tool

B43K 712

Patent

active

042278236

ABSTRACT:
A retractable ballpoint pen has a body and a point secured to a flexible tubular ink reservoir. The ink reservoir is secured to a rotatable element within the body, movement of which element causes the pen to be retracted and projected and during that movement the reservoir follows a generally circular path.

REFERENCES:
patent: 2219000 (1940-10-01), Williams
patent: 3158138 (1964-11-01), Bross
patent: 3407021 (1968-10-01), Mosch
patent: 3994605 (1976-11-01), McKnight

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