发明名称 |
Illuminated sign apparatus with arrow-shaped snap-in elements for covering arrow-shaped through-holes in a stencil |
摘要 |
An illuminated sign, such as an emergency exit sign, includes a stencil in which a pair of oppositely-directed, arrow-shaped through-holes are disposed. At least one arrow-shaped snap-in element is provided which is inserted into either of the through-holes to block the passage of light therethrough. The snap-in element includes elastic spring fingers having hook-shaped ends adapted to engage a rear end of a ridge which borders a rear side of a respective through-hole, thereby yieldably retaining the snap-in element within the through-hole. All of the spring-fingers are movable simultaneously through a respective through-hole.
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申请公布号 |
US5678336(A) |
申请公布日期 |
1997.10.21 |
申请号 |
US19950538800 |
申请日期 |
1995.10.03 |
申请人 |
COOPER INDUSTRIES, INC. |
发明人 |
JUE, GEORGE H.;KUFFEL, GREGORY L. |
分类号 |
G09F13/00;G09F13/04;(IPC1-7):G09F13/04 |
主分类号 |
G09F13/00 |
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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