Portable lighting fixture

Details Portable lighting fixture Portable lighting fixture

F - Mech Eng,Light,Heat,Weapons

21

V

F21V 15/00 (2006.01) F21L 14/00 (2006.01) F21V 15/02 (2006.01) F21V 21/06 (2006.01) F21V 25/00 (2006.01) F21V 25/12 (2006.01)

Patent

CA 2149291

This portable lighting fixture comprises a lamp housing containing a lamp and a reflector that projects light from the lamp through an opening in the front face of the housing. A protective grill on the housing registers with the front-face opening in a location spaced from the opening. Normally located beneath the housing is a base that normally supports the housing. The grill has an outer periphery that appears rounded when viewed from a horizontal reference plane located above the housing when the housing is in its normal location atop the base. Tip- over of the fixture onto a horizontal surface that causes the central peripheral portion of the grill to fall against the horizontal surface results in the fixture rolling over in a lateral direction on the rounded grill following initial contact between the central peripheral portion of the grill and the horizontal surface. This roll-over action causes heat that is emitted through the front-face opening of the fixture to be directed via a path that is oriented to produce reduced heating of the support surface under these conditions.

Appareil d'éclairage portatif comprenant un boîtier contenant une ampoule et un réflecteur qui projette la lumière de l'ampoule par une ouverture dans la face avant du boîtier. Un grillage protecteur sur le boîtier s'aligne avec l'ouverture de la face avant dans un emplacement espacé de l'ouverture. Une base, située sous le boîtier, supporte ce dernier. Le grillage a une périphérie extérieure qui semble arrondie si on le regarde d'un plan horizontal de référence situé au-dessus du boîtier lorsque ce dernier est dans son emplacement normal au-dessus de la base. Une bascule de l'appareil qui provoque la partie périphérique centrale du grillage à entrer en contact avec une surface horizontale entraîne le roulement de l'appareil dans le sens latéral du grillage après le contact initial. Ce roulement permet de diriger la chaleur émise par l'ouverture avant de l'appareil dans une trajectoire orientée de façon à diminuer le réchauffement de la surface de support.

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