B - Operations – Transporting – 43 – K
Patent
B - Operations, Transporting
43
K
207/62
B43K 9/00 (1990.01)
Patent
CA 2000124
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 partially double-walled cylindrical cap main body having its oppo- site axial ends opened and its rear portion double-walled to form an inner cylindrical wall and an outer cylindrical wall, the inner cylindrical wall being provided with a plurality of axial slits defining a plurality of axial lands therebetween; and a cylindrical inner cap for hermetically covering a pen-point portion of the writing instrument, the cylindrical inner cap having its front axial end opened and its rear axial end closed, the cylin- drical inner cap being supported by the axial lands of the inner cylindrical wall of the cap main body so as to leave rear-end portions of the axial slits of the inner cylindrical wall of the cap main body open, through which rear-end portions of the axial slits the interior of the cap main body communicates with open air.
Isoda Takashi
Marks & Clerk
Mitsubishi Pencil Co. Ltd.
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