Automatic viewing screen
US4556283A · kind A · utility
11Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1983 |
| Grant date | Dec 3, 1985 |
| Priority date | — |
| Expiry date | Sep 9, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K35/368
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An automatic screen for projecting an image from a video projector onto it is disclosed. It has a cabinet 1 which accommodates a screen 2. The screen 2 can be moved relative to the cabinet by a chain 5a coupling a front door 1a of the cabinet 1 and a sprocket. The front door 1a of the cabinet 1 is opened in an interlocked relation to the operation of bringing the screen 2 to a set position projected from the cabinet 1. When the screen 2 is no longer used, it can be brought back into the cabinet 1, and in an interlocked relation to this motion the front door 1a of the cabinet 1 is closed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.