发明名称 |
Flashlight with a backup system |
摘要 |
A hand-held flashlight has a housing for two independent electrical systems: a primary system and a backup system. Each of the systems includes a light source, a power source and a switching device for selectively connecting a power source to a corresponding light source. The backup system uses high performance components to insure that the flashlight is operational for long time periods. The backup system is actuated only after the the primary system has failed. An indicator announces when the backup system is in operation.
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申请公布号 |
US4803605(A) |
申请公布日期 |
1989.02.07 |
申请号 |
US19870081655 |
申请日期 |
1987.08.04 |
申请人 |
RAYOVAC CORPORATION |
发明人 |
SCHALLER, DAVID R.;MEGAHED, EL-SAYED;NEYER, JAMES;PETTERSON, TOR |
分类号 |
F21L4/00;F21V25/00;F21V33/00;(IPC1-7):F21L7/00 |
主分类号 |
F21L4/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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