发明授权
- 专利标题: Retractable lighting assembly
- 专利标题(中): 伸缩式照明组件
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申请号: US418387申请日: 1995-04-07
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公开(公告)号: US5683176A公开(公告)日: 1997-11-04
- 发明人: Patrick B. Clendenin
- 申请人: Patrick B. Clendenin
- 专利权人: Clendenin; Patrick B.
- 当前专利权人: Clendenin; Patrick B.
- 主分类号: E01F9/016
- IPC分类号: E01F9/016 ; E01F9/08 ; E01F9/093 ; E01F13/04 ; F21S8/00 ; F21V21/10 ; F21V21/22 ; B60Q1/06
摘要:
The present invention provides for a pneumatically operated retractable lighting assembly that is adapted for insertion into the ground, existing ceilings, or the like. The pneumatically operated retractable lighting assembly includes a first housing that receives a second housing. The second housing is in a slidable relationship to the first housing. The second housing further supports the light fixture. When the device is activated, air is supplied to the first housing in order to lift and activate the second housing and current is supplied to the light fixture. During deactivation, the air escapes the first housing to permit the second housing to retract into the first housing while current is no longer supplied to the light fixture.
公开/授权文献
- US5050982A Method and apparatus for improving visual acuity 公开/授权日:1991-09-24
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