Flexible pen with sliding sleeve

Details Flexible pen with sliding sleeve Flexible pen with sliding sleeve

1986-01-22

1987-07-14

Bratlie, Steven A.

Coating implements with material supply

Projectable and retractable tool

Manually reciprocable sleeve

401209, 401214, B43K 900, B43K 700

Patent

active

046799540

ABSTRACT:
A pen comprises an elongated one-piece barrel having substantially rigid tip end and head end portions joined to each other by an intermediate integral flexible portion, whereby the barrel can be bent at the flexible portion, and a writing tip at the distal end of the tip end portion. A substantially rigid tubular cap member is telescopically received over the tip end portion of the barrel such that it can be moved along the barrel between (1) a retracted position in which it overlies part of the tip end portion and substantially all of the flexible portion, thus exposing the writing tip for use and rendering the pen substantially rigid, and (2) an extended position in which it covers the writing tip and leaves the flexible portion exposed, thus protecting the writing tip and rendering the pen flexible. At least one boss on the inner surface of the cap is received in a slot extending coextensively with the distance between the extended and retracted positions. The slot has a circumferentially offset locking portion at each end for releasably retaining the cap member in each of the retracted and extended positions in the absence of rotation of the cap member.

REFERENCES:
patent: 928312 (1909-07-01), Lloyd
patent: 1059398 (1913-04-01), Schreiber
patent: 4580919 (1986-04-01), Ambasz

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