Tape rule with lighting device

Details Tape rule with lighting device Tape rule with lighting device

1999-03-16

2000-02-29

Quach, Y.

Illumination

With implement or hand held holder therefor

362396, 33760, F21V 3300, G01B 302

Patent

active

060300914

ABSTRACT:
A tape rule with a lighting device for illuminating the scale on the tape can either be in the form of built-in type or an externally separated type. The built-in type lighting device includes a press strip, a battery as electric power source, and a light emitting diode (LED) as light source. All components parts are accommodated in a tape rule housing. By pushing a push button installed on the tape rule housing, the LED can be electrically connected to the battery and is turned on to emit light. The externally separated type lighting device includes a battery, an LED and a push button switch all accommodated in a box to form a light source package externally to the tape rule housing. By pressing the push button switch, the LED may make contact with the battery and become energized to emit light.

REFERENCES:
patent: 4462160 (1984-07-01), Cohen et al.
patent: 5544420 (1996-08-01), Choi

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