Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Siu Bong Ng0
Wing On Tang0
Kang Woon Au0
Date of Patent
December 18, 2007
Patent Application Number
10943060
Date Filed
September 16, 2004
Patent Primary Examiner
Patent abstract
A portable lighting device, such as a flashlight, having a rotatable band disposed around the exterior of the flashlight is disclosed. Rotational movement of the band is converted to lateral movement of the light emitting element within the flashlight. The structural integrity of the flashlight is not compromised when the rotatable band is rotated around the flashlight to adjust the width of the projected pattern of light.
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