Captive pen cap

Details Captive pen cap Captive pen cap

1987-04-06

1988-10-25

Bratlie, Steven A.

Coating implements with material supply

Projectable and retractable tool

Manually reciprocable sleeve

401 91, 401116, B43K 900

Patent

active

047800160

ABSTRACT:
A cap for the point of a pen or pencil includes a cap element that is affixed to the writing end of, and captive on, the pen or pencil. The cap is rotatably and slideably moveable between a first extended position for covering and protecting the point, and alternately, a second, retracted position in which the cap element moves further onto the pen or pencil to expose the point for writing.

REFERENCES:
patent: 454623 (1891-06-01), Baumgarten
patent: 856148 (1907-10-01), Levingston
patent: 1156860 (1915-10-01), Heylmun
patent: 1355026 (1920-10-01), Austin
patent: 1476107 (1923-12-01), Rudderham
patent: 2435185 (1948-01-01), Reynolds
patent: 2603186 (1952-07-01), Fisher
patent: 2941511 (1960-06-01), Cieremans
patent: 2952242 (1960-09-01), Rosso
patent: 4080078 (1978-03-01), Halm
patent: 4529328 (1985-07-01), Wacha et al.

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