Glass manufacturing – Processes – Forming product or preform from molten glass
Reexamination Certificate
2011-06-21
2011-06-21
Dehghan, Queenie (Department: 1741)
Glass manufacturing
Processes
Forming product or preform from molten glass
C065S403000, C065S435000, C065S437000
Reexamination Certificate
active
07963122
ABSTRACT:
The invention relates to a method and an apparatus for producing optical glass elements, in particular optical prisms or optical rod lenses, using a drawing process. The geometry of the glass strand which is to be produced is controlled by means of cooling or heating elements positioned at least around portions of the periphery or longitudinal axis of the glass strand, inside or outside the heating apparatus.
REFERENCES:
patent: 3538722 (1970-11-01), Stream
patent: 4514205 (1985-04-01), Darcangelo et al.
patent: 6010741 (2000-01-01), Rosenkranz et al.
patent: 6715317 (2004-04-01), Brauer et al.
patent: 2002/0014092 (2002-02-01), Morishita et al.
patent: 2002/0088253 (2002-07-01), Roba et al.
patent: 2003/0021036 (2003-01-01), Kusuyama
patent: 2003/0106342 (2003-06-01), Nishimura
patent: 2005/0223751 (2005-10-01), Janka et al.
patent: 19536960 (1996-03-01), None
patent: 19629169 (1997-03-01), None
patent: 0819655 (1998-01-01), None
Preliminary Exam Report dated Sep. 15, 2010 corresponding to French Patent Application No. 0509002.
Büellesfeld Frank
Lange Ulrich
Langsdorf Andreas
Plapper Volker
Dehghan Queenie
Ohlandt Greeley Ruggiero & Perle LLP
Schott AG
LandOfFree
Microprism and microrod lenses, method for the production... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Microprism and microrod lenses, method for the production..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microprism and microrod lenses, method for the production... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2664590