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US 2003/0070568 A1Published application
Roller stamp of ink-exuding type and method for making the same
AssigneeYamahachi Kemikaru Kabushiki Kaisha
InventorTetsuyuki Toyama
Life of this patent
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Abstract
A stamp of liquid-exuding type has a multiple-seal-faced assembly adapted for stamping with selected one of these multiple faces, preferably for stamping with multiple colors.
Claims9
A roller stamp of ink-exuding type comprising:
- a stamp roller of ink-exuding type, said stamp roller defining a cylindrical surface, an end surface, and a peripheral wall;
- a seal face on said cylindrical surface of said stamp roller;
- a ratchet wheel disposed adjacent one end surface of said stamp roller at least partially inside said peripheral wall of said stamp roller, said ratchet wheel having a locking recess adapted to define a position at which each stamping cycle is started and completed;
- a locking projection elastically biased into engagement with said locking recess;
- and
- a control mechanism adapted to disengage said locking projection from said locking recess.
3 more elements
A process for making a roller stamp of ink-exuding type comprising the steps of:
- molding material for the ink reservoir and ink-permeable material for the seal face member into elongated tubular stock using a pipe-extruder;
- and
- cutting said tubular stock into pieces having substantially the same length to thereby make each set of ink reservoir and seal face member for the stamp roller.
Dependencies are inferred from the claim text.