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.
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 代理人
主权项
地址