Sprinkler head assembly
AssigneeCentral Sprinkler Corporation
InventorJames R. Anderson
Life of this patent
Estimating the term…
Abstract
A sprinkler is disclosed which comprises a flange attached to a bracket on the sprinkler body by means of boss and shoulder joints, e.g. bayonet joints. The flange can serve as a bracing means which prevents sagging of ceiling tile or unwanted retraction of the sprinkler head rearward of an opening in a sidewall. When used with recessed sprinklers, a cover plate can be attached to the flange with a bonding material having a low softening point. By means of the boss and shoulder joints, the flange and the attached cover plate can be easily mounted on the sprinkler as a subassembly, and can be just as easily removed therefrom for inspection and/or servicing of the sprinkler.
Claims15
A sprinkler head for a fire extinguishing system comprising:
- a. a sprinkler body having a nozzle therein, said nozzle being closed by a thermally responsive seal member adapted to open said nozzle to permit fluid discharge therefrom,
- b. a bracket attached to said sprinkler body,
- c. a flange located forwardly of said nozzle that is disposed substantially transversely and extends radially outward with respect to the discharge axis of said nozzle, and
- d. a cover extending across the path of said discharge axis and attached to said flange by means of a thermally responsive bonding material which will soften prior to the opening of said nozzle by said seal member,
- e. said flange being attached to said bracket by means of at least one relatively engageable projection and shoulder joint, said joint having at least one resiliently operative transitional arrangement tending to lock the engaged projection and shoulder of said joint against relative rotational disengagement,
- f. said resiliently operative transitional arrangement including resilient means urging said cover away from said flange.
Dependencies are inferred from the claim text.