摘要:
A personal protective device and composition thereof. The device comprises arc flash spectacles or goggles, an arc flash faceshield (10) or an arc flash hood (20) window to provide optical clarity, specifically color acuity. The spectacles or goggles, the faceshield and the hood window include polycarbonate material for high-impact, high-mass performance, and surface charring during arc flash exposure and provides an arc flash protective rating of 3-40 cal/cm 2 (in the case of eyewear and face shields) or at least 15-140 cal/cm 2 (in the case of hood windows). the lens comprises an optically clear plastic material selected from the group of polycarbonate, acrylic, cellulose propionate, cellulose acetate and cellulose acetate butyrate; and a particulate of antimony doped tin oxide coated with a dispersant; the particulate dispersed within said optically clear plastic material.
摘要:
Protective headgear and an optical filter cartridge that is removably mountable thereto, and methods of removably inserting such a cartridge and removing such a cartridge.
摘要:
The present application relates to a welding helmet comprising a helmet housing and a head cover adapted to be worn on a wearer's head and made of an air-impermeable and flexible material, wherein a zipper arrangement is provided between the helmet housing and the head cover to detachably connect the head cover to the helmet housing around the whole perimeter of an opening of the helmet housing, and wherein after the head cover is connected to the helmet housing, the zipper arrangement is located within the housing of the welding helmet. The present application also relates to an assembly having the welding helmet.
摘要:
Protective headgear and an optical filter cartridge that is removably mountable thereto, and methods of removably inserting such a cartridge and removing such a cartridge.
摘要:
An inner wall (10") of a face shield, such as a welding screen, intended to be placed in front of the face of a wearer, comprises a front side portion (18), side wall portions (19), said front side portion having a light transparent part (9") intended for a protective glass, the side wall portions (19) being bent inwardly in the direction towards the place where the face of the wearer is intended to be positioned, from the region where the mouth of the wearer is intended to be positioned to the region where the eyes of the wearer are intended to be positioned, the front side portion (18) of the inner wall (10") in the above mentioned region being placed in the direction towards the place where the face of the wearer is intended to be positioned, the inwardly bent front side portion and the inwardly bent surroundning side wall portions (19) together forming at least one evacuation channel (12") in cooperation with a cover (20), adapted to be releasably arranged on the inner wall (10"), forming air deflection means (3) for exhalation air (u), and that at least one opening (11") is formed in the inwardly bent part of the front side (18) in the region where the nose and the mouth of the wearer are intended to be positioned. In accordance with the invention, at least said front side portion is adapted to receive said cover (20) in such a way that a light transparent portion (24) thereof is arranged at said light transparent part (9") of the inner wall (10").
摘要:
Un casque de soudeur (1) comporte un filtre rapide (3) lequel est commandé par la lumière de soudage, et à travers lequel l'utilisateur dudit casque peut voir clairement en l'absence de lumière de soudage. Selon l'invention, ledit casque est complété par des fenêtres latérales (4) servant à filtrer les rayonnements infrarouges et ultraviolets, et présentant un effet de filtre modéré de la lumière visible.