Patent ID: 6296062
Filing Date: 2001-10-02
Classification: A62C

Abstract:
Installation for extinguishing fire, the installation comprising a number of spray heads (130a, 130b; 230; 230ab, 280a, 280b; 330a, 380a; 430a, 430b; 530a, 530b, 530ab, 580a, 580b; 630a, 630b, 630ab, 680a, 680b, 680ab, 680abcd; 730a, 730b, 780a, 780b, 780ab, 780abcd), a pipe system (81; 181; 281; 381; 481; 581; 681; 781) for leading extinguishing medium to the spray heads, the spray heads comprising a holder body (3, 3', 3"", 3""') having an inlet (5, 5', 5"", 5""') for incoming extinguishing medium and at least one nozzle (2, 2', 2"", 2""'), whereinthe spray heads (130a, 130b; 230; 230ab, 280a, 280b; 330a, 380a; 430a, 430b; 530a, 530b, 530ab, 580a, 580b; 630a, 630b, 630ab, 680a, 680b, 680ab, 680abcd; 730a, 730b, 780a, 780b, 780ab, 780abcd) comprise a cover (13, 13', 13"", 13""'), positioned by means of a locking device (14, 17, 14', 17', 14"", 17"", 14""', 17""') in a protective position in front of said nozzle (2, 2', 2"", 2""') when the installation is in an inactive mode and, upon activation of the installation, arranged to be displaced to a free position by opening the locking device, in which free position the cover is out of the way of said nozzle so that the nozzle may spray extinguishing medium when the spray head is in an active mode, the cover being arranged to be displaced to the free position by a pressure medium exerting a force on the locking device so that it opens (FIGS. 8, 10, 13, 14, 17, 19, 22, 23).