公开(公告)号：US6152581A

公开(公告)日：2000-11-28

申请号：US253873

申请日：1999-02-22

Applicant: Andrew Edward Masters ,  James Michael Lay

Inventor： Andrew Edward Masters ,  James Michael Lay

IPC: G09F13/00 ,  G09F13/04

CPC classification number: G08B7/062 ,  G09F13/0413 ,  G09F13/00 ,  G09F2013/0459 ,  Y10S362/80 ,  Y10S362/812

Abstract: A housing frame preferably formable as a single integral unit being capable of use as a primary structural portion of a housing suitable for multiple exit sign configurations, the several exit sign configurations of the invention being either intended for emergency or non-emergency operation and further being intended for use with different light sources and power sources. The frame and associated plates forming the housing of the invention are preferably formed from polymeric material of a thickness less than that of prior "plastic" housings, the strength and rigidity necessary to proper operation of the housing being provided by a functionally interrelated combination of structural elements which allows a substantial reduction in material used for formation of the housing.

Abstract translation: 壳体框架优选地可形成为单个整体单元，其能够用作适于多个出口标志构造的壳体的主要结构部分，本发明的几个出口标志构造用于紧急或非紧急操作，并且进一步 适用于不同的光源和电源。 形成本发明的壳体的框架和相关板优选地由厚度小于现有“塑料”外壳的厚度的聚合材料形成，通过功能上相互关联的结构组合来提供壳体正常操作所需的强度和刚度 允许大大减少用于形成壳体的材料的元件。