Process for cleaning large format or giant screen movie screens
US7666262B2 · kind B2 · utility
1Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2006 |
| Grant date | Feb 23, 2010 |
| Priority date | — |
| Expiry date | May 19, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB08B6/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention relates to cleaning large format movie screens, such as vinyl screens and painted screens. There are different variations of the basic concept of using a cleaning head, cables, pulleys, an upper mounting bracket and a winch. In one instance a track may be used instead of a cable. The winch is connected to the cleaning head using cables and is used to move the cleaning head vertically across the screen through pulleys and other arrangements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.