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1. US20120248962 - COMPACT FLUORESCENT TUBE FOR COLD SPACES

Office United States of America
Application Number 13394519
Application Date 31.08.2010
Publication Number 20120248962
Publication Date 04.10.2012
Publication Kind A1
IPC
H01J 61/52
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
61Gas-discharge or vapour-discharge lamps
02Details
52Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
CPC
F21V 17/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
17Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
04the fastening being onto or by the light source
F21V 29/15
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
29Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
15Thermal insulation
F25D 27/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
27Lighting arrangements
H01J 61/327
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
61Gas-discharge or vapour-discharge lamps
02Details
30Vessels; Containers
32Special longitudinal shape, e.g. for advertising purposes
327"Compact"-lamps, i.e. lamps having a folded discharge path
H01J 61/523
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
61Gas-discharge or vapour-discharge lamps
02Details
52Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
523Heating or cooling particular parts of the lamp
Applicants MÃ¥rtensson Hans
Inventors MÃ¥rtensson Hans
Priority Data 0950676 16.09.2009 SE
Title
(EN) COMPACT FLUORESCENT TUBE FOR COLD SPACES
Abstract
(EN)

The present invention relates to a compact fluorescent tube (1) designed for cold spaces, which compact fluorescent tube (1) comprises at least one fluorescent tube body (13) formed into a U-shape and comprising two fluorescent tube body legs (17), which latter have an interspace (19) between them and each comprise a base part (9), enclosing a cathode chamber (11), and a top part (15) facing away from the said base parts (9), which base parts are fixed to a socket part (3), comprising current feeder members (5) for electrical contact with the cathode chambers (11). An insulating member (21, 47, 55) is arranged on the top part (15) of the compact fluorescent tube and is configured with at least one insulating cavity (23, 49), which, during operation of the compact fluorescent tube (1), is heated by the self-produced heat of the compact fluorescent tube (1).