Saidman, Sterne, Kessler & Goldstein
Flashlight assembly
 This invention discloses an improved flashlight assembly which comprises a lighting device, an upper housing, a lower housing, a packing member and a cap. The lighting device is disposed on the top of the upper housing for offering a beam of light when electric connection is achieved. A through hole and a pair of threads are formed respectively on the upper housing and the lower housing so that they may be engage with each other. Likewise, the packing member is also provided with a though hole and a pair of openings for attachment on the hollow joint member. A non-conductive sheet can be inserted into the flashlight body to break the electrical connection of the batteries when all through holes have been aligned in an overlayed manner due to the assembly of both the upper housing and the lower housing by the engagement of two pairs of threads. Preferably, when the upper housing is rotated in a clockwise direction with respect to the lower housing, the through hole of the upper housing will be blocked due to this displacement preventing moisture or water from infiltrating the flashlight body. 
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inventional inventional inventional
Tien-Tsai
Huang