Search lamps and torches

Details Search lamps and torches Search lamps and torches

F - Mech Eng,Light,Heat,Weapons

21

V

240/118

F21V 25/04 (2006.01) F21L 7/00 (1990.01)

Patent

CA 1320939

ABSTRACT A torch particularly for use in hazardous conditions has safety and battery power warning features; the supply from a power source to a light source includes a frangible conductive element in the conductive path to the light source; the conductive element is provided on a torch glass, so that if the glass breaks, the power supply to lamp will be cut off, thereby eliminating the risk of sparks, and exposure of the hot lamp element to atmosphere; the torch also has a switch and relays enabling batteries of the power source to be switched between series and parallel arrays, enabling the torch to operate at full or low power; the torch also has a battery voltage sensing and indicating means, which cause light source to flash when battery voltage reaches a first predetermined level, and for the light source to be switched off permanently when battery voltage reaches a second predetermined level.

610458

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