Sprinkler mounting and pipe connector

Claim 1

An area spraying sprinkler device comprising a T-coupling embodying an elongated hollow body having horizontal axially aligned branches and a complemental vertically disposed upstanding screw-threaded branch, a vertical spray pipe having a lower screw-threaded end screwed into and communicating with said upstanding branch and having an upper end provided with a sprinkler head, each horizontal branch having horizontal diametrically opposite notches which are open at their outer ends and which provide companion keyways, said notched branches embodying upper and lower semi-circular half-portions, a first adapter fitting comprising a sleeve provided on a median peripheral surface with an outstanding rib, said rib being of an outside diameter less than the outside diameter of said horizontal branches and constituting a limit stop for said adapter fitting, said fitting having an insertable inner end portion which is capable of being fitted telescopically into a selected one of the aforementioned horizontally elongated branches, said inner portion being provided at diametrically opposite points with outstanding horizontal lugs, said lugs constituting keys and said keys being removably keyed in their respectively cooperable keyways, said half portions being provided with aligned keeper holes, and vertically disposed manually insertable and removable L-shaped keeper pins, said keeper pins having long leg portions removably fitted into their respectively cooperable keeper holes and cooperatively engaging the respectively adjacent lugs in a manner to retain the lugs in a given keyed position.