Seamless master and method of making same
US7700199B2 · kind B2 · utility
5Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2007 |
| Grant date | Apr 20, 2010 |
| Priority date | — |
| Expiry date | Jul 16, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/26
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Hollow, cylindrical, seamless metal master for producing seamless diffuser sheets of preselected length and width. Additional aspects of the invention include a hollow cylindrical seamless invertable elastomeric master and method of making the same and an apparatus and process for effecting variable diffuser recording in photosensitive medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.