Patent ID: 7540330

Claim:
A sprinkler assembly comprising: a sprinkler head having a base with a passage therethrough, a deflector, a pair of arms extending from said base and supporting said deflector, a heat responsive unit supporting a plug in said passage and being activated by heat to release said plug from said passage, said deflector being fixed to said pair of arms after said heat responsive unit is activated and adapted for deflecting fire suppressant fluid being discharged from said passage; and a plastic cover, said cover including an end wall, a side wall extending from and around said end wall to form a cavity therebetween, and said cavity receiving said deflector and said arms of said sprinkler head, said side wall including at least one annular rib projecting from said side wall inwardly into said cavity and spaced from said end wall, said end wall, said side wall and said at least one annular rib all being integrally formed from plastic, said deflector captured between said rib and said end wall when said sprinkler head is inserted into said cavity of said cover wherein said rib mounts said cover onto said sprinkler head and retains said cover on said sprinkler head by engagement with said deflector.