Light tower, light tower support, method for operating a...

Details Light tower, light tower support, method for operating a... Light tower, light tower support, method for operating a...

2005-09-13

2009-11-24

Sember, Thomas M (Department: 2885)

Illumination

With fluid distributer

C362S189000, C362S352000, C362S363000, C446S226000

Reexamination Certificate

active

07621650

ABSTRACT:
The invention relates to outdoor lighting devices used mainly in emergency situations. The inventive light tower comprises an inflatable mast, including a flexible transparent shell, fixed to a support flange provided with an air intake vent for pumping compressed air into a shell chamber, an electric lamp fixed in the shell, an air pump driven with a motor, a working chamber connected to the vent, and power supply means substantially connected to the lamp and in some embodiments to the pump. The shell is divided into a lower and upper parts joined with an airtight coupling means. The mast is furnished with means for changing the length associated with the upper part. A control unit for the light tower and power means are mounted on the flange. The air supply into the shell chamber is manually/automatically adjustable. In several embodiments light reflectors and inflate modes are described.

REFERENCES:
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patent: 6186857 (2001-02-01), Gazit et al.
patent: 6322230 (2001-11-01), Medici
patent: 6644843 (2003-11-01), Chin-Cheng
patent: 6966676 (2005-11-01), Chabert et al.
patent: 7198538 (2007-04-01), Chin-Cheng
patent: 7216446 (2007-05-01), Machala
patent: 2736706 (1995-07-01), None
patent: 2188981 (1999-08-01), None
patent: 2192581 (2002-11-01), None
patent: 1203470 (1984-08-01), None

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