EXPANDABLE WRITING INSTRUMENT
An expandable pen has a pen barrel (50) with an expanding middle section. The pen barrel holds a retractable ball point pen refill cartridge (65). When the pen is expanded, the writing tip (60) of the refill is extended from a retracted position inside the pen barrel to a writing position, while the...
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Main Authors | , , |
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Format | Patent |
Language | Chinese English |
Published |
11.08.2006
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Subjects | |
Online Access | Get full text |
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Summary: | An expandable pen has a pen barrel (50) with an expanding middle section. The pen barrel holds a retractable ball point pen refill cartridge (65). When the pen is expanded, the writing tip (60) of the refill is extended from a retracted position inside the pen barrel to a writing position, while the barrel becomes full length for comfort when writing. The pen may be collapsed for storage, which simultaneously retracts the writing tip inside the pen barrel. |
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Bibliography: | Application Number: HK20020105629 |