Radiant energy – Invisible radiant energy responsive electric signalling – Ultraviolet light responsive means
Reexamination Certificate
2005-08-03
2009-06-09
Porta, David P (Department: 2884)
Radiant energy
Invisible radiant energy responsive electric signalling
Ultraviolet light responsive means
Reexamination Certificate
active
07544948
ABSTRACT:
The radiation power emitted from the UV radiation sources (2) in a weathering apparatus is controlled such that the radiation power of each of the radiation sources (2) is measured in a predetermined spectral range of the radiation emitted from the radiation sources, with the spectral range being chosen such that the measured radiation power is representative of the radiation power in the UV, an averaged radiation power is calculated from the measured radiation powers, and the averaged radiation power is used for controlling the electrical power to be supplied to the radiation sources (2). In particular, the control process can be carried out in such a way that the same electrical power, within a predetermined tolerance bandwidth, is supplied to each of the radiation sources (2), and the averaged radiation power is kept constant over time at a desired nominal value.
REFERENCES:
patent: 4665627 (1987-05-01), Wilde et al.
patent: 4985622 (1991-01-01), Kessler et al.
patent: 5206518 (1993-04-01), Fedor et al.
patent: 5220840 (1993-06-01), Neigoff et al.
patent: 5374825 (1994-12-01), Doty et al.
patent: 6264836 (2001-07-01), Lantis
patent: 6517687 (2003-02-01), Iacovangelo
patent: 6946652 (2005-09-01), Rathod et al.
patent: 7013742 (2006-03-01), Beraud
patent: 7118271 (2006-10-01), Schonlein et al.
patent: 2001/0038269 (2001-11-01), Grossman et al.
patent: 2002/0062787 (2002-05-01), Hashizume et al.
patent: 2002/0139928 (2002-10-01), Rathod et al.
patent: 2005/0205769 (2005-09-01), Ishikawa et al.
patent: 2008/0210884 (2008-09-01), Egberts
patent: 2043217 (1970-09-01), None
patent: 2940325 (1979-10-01), None
patent: 1571439 (2005-09-01), None
Börner Bernhard
March Peter
Rudolph Bernd
Schönlein Artur
Atlas Material Testing Technology GmbH
Boosalis Faye
Porta David P
Vedder Price P.C.
LandOfFree
Control of the UV radiation sources for a weathering... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control of the UV radiation sources for a weathering..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control of the UV radiation sources for a weathering... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4057027