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US 2003/0110650 A1Published application
Magnetic compass
OwnerGin-Sung Changinventor
Life of this patent
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Abstract
A magnetic compass comprises a compass body, an illuminant, a battery set, a base, and a top lid. The compass body, the illuminant and the battery set are situated within the interior section of the base and, furthermore, the illuminant is positioned at one side of the compass body and its light is projected towards the peripheral walls of the compass body. As such, the compass body is illuminated at optimal efficiency and the magnetic compass of the present invention is effectively usable under low light conditions.
Claims11
A magnetic compass comprising:
- a compass body having a housing and a magnetic needle installed inside said housing;
- an illuminant;
- a battery set connected electrically to said illuminant;
- a base having:
- a base body provided in the interior thereof with a recessed space for receiving said compass body, a battery compartment disposed at one side of said recessed space for receiving said battery set, and an illumination component chamber communicated with said recessed space for receiving said illuminant such that the emitted light of said illuminant is projected towards the peripheral walls of the compass body;
- an opening formed at the top section of the base body and communicated with said recessed space admitting said the compass body;
- a cover covered onto said opening of the base body, said cover is provided with a readout window and a push button hole corresponding in location to said compass body and said battery set;
- a push button positioned in said battery compartment and its top portion protrudes through the push button hole of the cover, thereby pressing the push button establishes continuity between the battery set and the illuminant, enabling electrical current from the battery set to be supplied to the illuminant
- a top lid pivoted to one end of said base and adapted to cover the top surface of said base, said top lid is provided with a built-in magnifying glass.
6 more elements
Dependencies are inferred from the claim text.