A - Human Necessities – 62 – C
Patent
A - Human Necessities
62
C
A62C 37/00 (2006.01) A62C 31/28 (2006.01)
Patent
CA 2276477
An escutcheon locking ring for an automatic sprinkler head having an externally threaded section with a top portion having an engaging member extending therefrom comprises a ring having a plurality of tabs extending from the inner perimeter, and an outer perimeter having a plurality of escutcheon engaging fingers depending therefrom. The escutcheon engaging fingers are curved and are formed with sharp ends. When positioned between the bottom surface of the engaging member and the escutcheon, the sharp ends of the depending escutcheon engaging fingers penetrate the surface of the escutcheon. An attempt to unscrew the escutcheon from the sprinkler head causes the rotation of the ring until frictional contact is made between the extending tabs and the engaging member. Once frictional contact is achieved, a positive lock is formed preventing one from unscrewing the escutcheon from the sprinkler head. In an alternative embodiment, the extending tabs are replaced by extending U-shaped members. The curvature of the depending escutcheon fingers enables the locking ring of the present invention to be formed from a single sheet of material.
Norton Rose Or S.e.n.c.r.l.,s.r.l./llp
The Viking Corporation
LandOfFree
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