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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0470595 (1990-01-26) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 7 인용 특허 : 7 |
A warning device that is removably affixed to overhead loads which are moved by an overhead crane. The warning device has a rotating beacon light and a horn, both activated by a switch and powered by internal batteries. The device is attached to steel loads with magnets or to non-metallic loads with
An overhead warning device for affixation to an overhead crane, said device comprising: a. a housing; b. battery means within said housing; c. a horn within said housing; d. a 360°rotatable beacon lamp exterior of said housing; e. electrical switch means mounted on said housing to activate or deacti
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