Inertia pen with slidable sleeve

Details Inertia pen with slidable sleeve Inertia pen with slidable sleeve

1979-11-16

1982-02-16

Bratlie, Steven A.

Coating implements with material supply

Projectable and retractable tool

401 29, 401 91, 401107, 401115, 401117, 401209, 401274, B43K 2300, B43K 2700, B43K 2400

Patent

active

043156959

ABSTRACT:
This invention relates to inertia pens, or writing or marking devices wherein a sleeve is shifted by axial impulse between a position exposing the writing tip and a position enclosing the writing tip. The kinetic energy of the impulse is transmitted to a calibrated mass slide within the pen which slide transfers its energy to the sleeve. A return spring is utilized and the pen may be simple, compound, binary or multifunctional. By obviating the push button or other manual actuator, writing or marking elements may be provided at both ends.

REFERENCES:
patent: 2823645 (1958-02-01), Johnson
patent: 2887708 (1959-05-01), Kane
patent: 3602600 (1971-08-01), Kanski

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