F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
F21V21/36—Hoisting or lowering devices, e.g. for maintenance
F21V21/38—Hoisting or lowering devices, e.g. for maintenance with a cable
Landscapes
Engineering & Computer Science
(AREA)
General Engineering & Computer Science
(AREA)
Refuge Islands, Traffic Blockers, Or Guard Fence
(AREA)
Declencheur electromagnetique comportant un circuit electromagnetique reposant sur un socle deformable elastiquement et declencheur electromagnetique comprenant une bobine flottante
Déclencheur électromagnétique comportant un circuit électromagnétique dont l'armature mobile est apte à accuper trois positions d'équilibre stable