Seamless master and method of making same
US8097311B2 · kind B2 · utility
13Cited by
19References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2003 |
| Grant date | Jan 17, 2012 |
| Priority date | — |
| Expiry date | Feb 14, 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 invertible 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.