B - Operations – Transporting – 43 – K
Patent
B - Operations, Transporting
43
K
207/3, 206/44
B43K 25/02 (2006.01) B43K 23/12 (2006.01)
Patent
CA 2005542
ABSTRACT OF THE DISCLOSURE A removable cap attached to a writing instrument in an insertion manner for preventing ink from evaporating from the writing instrument, comprises: a hollow cylindri- cal cap main body; and a hollow cylindrical inner cap fixedly mounted in the cap main body. The cap having been detached from the writing instrument permits open air to axially flow through the interior space of the cap through: a front axial opening of the cap; a ventilat- ing hole of the inner cap; a space defined between the inner cap and the cap main body; and a clearance defined between a rear-end opening of the cap main body and a rear-end projecting portion of the inner cap, which pro- jecting portion is disposed in the rear-end opening of the cap main body while space apart therefrom, whereby there is no fear that the cap suffocates infant's bronchi even if the infant swallows the cap whole.
Isoda Takashi
Marks & Clerk
Mitsubishi Pencil Co. Ltd.
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