Pen-size flashlight

Details Pen-size flashlight Pen-size flashlight

1990-03-21

1991-12-03

Lazarus, Ira S.

Illumination

Self powered lamp

Cylindrical flashlight casing

362118, 362202, 200 60, F21L 700

Patent

active

050704389

ABSTRACT:
A pen-size flashlight comprises a tubular body receiving two size AAAA batteries and having a bulb and bulb contact assembly mounted on the forward end and a switch assembly driven by a rotatable cap on the rear end. The bulb contact assembly is removable for changing batteries and includes a bulb holder threadably secured to the tubular body and mounting a bulb, an insulator mounted to the bulb holder and defining an opening extending from the bulb tip terminal toward the front battery terminal and a dual diameter coil spring extending through the insulator to electrically connect the bulb tip terminal and the front battery terminal. The switch assembly includes a switch housing defining a threaded opening extending rearwardly from the rear battery terminal and a switch plunger threadably received in the switch housing opening. A switch driver sleeve is mounted for rotation about the switch housing and a cap is fitted over the switch driver sleeve and switch assembly. The switch driver sleeve engages the switch plunger such that rotation of the cap relative to the tubular body rotates the switch plunger in and out of contact with the rear battery terminal to turn the flashlight ON and OFF. The switch driver sleeve accommodates axial movement of the switch plunger without imparting that axial movement to the cap.

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