Emergency lighting

Electric lamp and discharge devices: systems – Automatic substitution of the power supply

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C315S173000, C315S175000, C315S247000, C315S287000, C345S052000, C345S046000

Reexamination Certificate

active

07466081

ABSTRACT:
An emergency lighting with an electrical illuminant (DL1, DL2, DL3), which, as a power supply drops below a predeterminable value, can be connected to an energy source that can be charged from the power supply by means of a charging connection, for example, by means of an electronic switch (T1), where the energy source consists of at least one high-capacity storage condenser (CS; CS1, CS2) and where light-emitting diodes can be provided as illuminants.

REFERENCES:
patent: 4298869 (1981-11-01), Okuno
patent: 4544910 (1985-10-01), Hoberman
patent: 4843300 (1989-06-01), Alderman
patent: 5298750 (1994-03-01), Rericha
patent: 5303124 (1994-04-01), Wrobel
patent: 5722852 (1998-03-01), Miek
patent: 5739639 (1998-04-01), Johnson
patent: 5955843 (1999-09-01), Nuckolls et al.
patent: 6121694 (2000-09-01), Thereze
patent: 6137276 (2000-10-01), Rudolph
patent: 4222994 (1994-01-01), None
patent: 19518782 (1995-12-01), None
patent: 19706568 (1998-08-01), None
patent: 20019847 (2001-02-01), None
patent: 0411388 (1991-02-01), None
patent: 1116941 (1968-06-01), None
patent: 2097 610 (1982-11-01), None
patent: 10136586 (1996-10-01), None
patent: 10262346 (1997-03-01), None
patent: 2000 097783 (2000-04-01), None
patent: WO 91/11896 (1991-08-01), None
Search Report, AT 369/2003 Apr. 13, 2004 (3 pages) (Translation—3 pages).
First Office Action, China Application No. 200480006556.6 dated Feb. 9, 2007 (2 pages) Translation (3 pages).
McClure M et al; “Constant Imput Power Modulation Technique for High Efficiency Boost Converter Optimized for Lithium-Ion Battery Application” applied Power Electronics Conference and Exposition 1996. APEC '96 Conference proceeding 1996, Eleventh Annual San Jose, CA, USA Mar. 3-7, 1996, New York, NY, USA, IEEE, US, Mar. 3, 1996 (pp. 850-855).
Written Opinion Preliminary Searching Authority (5 pages) Jun. 7, 2004 (translations of pertinent portions 5 pages).
International Search Report Dated Jun. 7, 2004 (7 pages).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Emergency lighting does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Emergency lighting, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Emergency lighting will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4033507

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.