Capillary pen cover

Details Capillary pen cover Capillary pen cover

1991-12-20

1992-10-13

Bratlie, Steven A.

Coating implements with material supply

Including stylus

401202, 401213, 401243, 401247, B43K 900

Patent

active

051545268

ABSTRACT:
Protective cap for capillary writing instruments comprised of a relatively flexible outer casing and a relatively rigid inner casing. One end of the outer casing is adapted to form a substantially fluid tight seal on the body of a writing instrument. A flexible sealing means, e.g., spherical, is positioned between the inner sheath and the outer sheath so as to form a substantially fluid tight seal on the tip of a writing instrument inserted into the inner casing and placed in contact with the sealing means. In another embodiment the sealing means located between the outer casing and inner casing is eliminated and the outer casing forms a substantially fluid tight seal by directly contacting the writing instrument tip.

REFERENCES:
patent: 4086011 (1978-04-01), Kuparinen
patent: 4548325 (1985-10-01), Hojer et al.
patent: 4595308 (1986-06-01), Schiefnetter et al.

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