Retractile mechanism for refill of writing instrument

Details Retractile mechanism for refill of writing instrument Retractile mechanism for refill of writing instrument

2005-07-26

2005-07-26

Walczak, David J. (Department: 3751)

Coating implements with material supply

Projectable and retractable tool

Projection by movement of implement

C401S113000, C401S114000

Reexamination Certificate

active

06921224

ABSTRACT:
A retractile mechanism for refills of writing instrument includes an outer tube, a refill, an inner tube, a sliding ring with load and a compression spring. The inner tube having a front stopper on the front end and a rear stopper on the rear end thereof. By movement of the sliding ring and the elastic rear stopper, the inner tube and the refill are pushed forward and backward so as to manipulate the refills of the writing instrument.

REFERENCES:
patent: 4315695 (1982-02-01), Alves dos Santos et al.
patent: 4461590 (1984-07-01), Alves dos Santos et al.
patent: 4669904 (1987-06-01), Kageyama et al.

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