Self-inking stamp with ink cartridge barrier

Printing – Printing members and inkers – Pad inker

Reexamination Certificate

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Details

C101S327000, C101S367000, C101S125000

Reexamination Certificate

active

06892637

ABSTRACT:
A stamp pad holder for use in a self-inking hand stamp. The stamp pad holder has a stamp die box that holds a stamp forming material, ink cartridge and plastic within the die box. The stamp forming material is placed at the bottom of the die box. A pre-inked ink cartridge is placed above the stamp forming material but separated by an impermeable film. The film prohibits ink from flowing from the ink cartridge to the stamp forming material until the film is pulled from the die box prior to use. This permits the ink from the ink cartridge to impregnate the stamp forming material. The die box is then inserted into the hand stamp. A method of manufacturing the die box is also disclosed.

REFERENCES:
patent: 3948173 (1976-04-01), Barasch
patent: 4624482 (1986-11-01), Cassells
patent: 5271322 (1993-12-01), Palma
patent: 5285725 (1994-02-01), Imamaki et al.
patent: 5303647 (1994-04-01), Seo et al.
patent: 5577444 (1996-11-01), Toyama
patent: 5899142 (1999-05-01), Suda et al.
patent: 5942312 (1999-08-01), Venkataraman et al.
patent: 5996493 (1999-12-01), Okumura et al.
patent: 6164202 (2000-12-01), Takami

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