Patent ID: 7717390

Claim:
A ceiling fixture to be affixed to and between two studs having a given distance between the studs, the ceiling fixture having a canister frame, comprising: a. a first hanger bar assembly attached to a side of the canister frame and a second hanger bar assembly attached at an opposite side of a canister frame, each hanger bar assembly comprising a first elongated hanger bar having a longitudinal body, an upper elongated slotted edge with a gap between the edge and longitudinal body, a lower longitudinal slotted edge with a gap between the edge and the longitudinal body, the body having a multiplicity of spaced apart threaded openings, and a second elongated hanger bar having an elongated body having an upper longitudinal rim and a lower longitudinal rim and a multiplicity of spaced apart threaded openings, the second hanger bar slidably retained within the first hanger bar with a respective longitudinal rim inserted into the gap between an elongated slotted edge and the longitudinal body of the first hanger bar; b. each hanger bar assembly having a wing screw having a head with ratchet teeth and a transverse threaded screw portion, the transverse threaded screw portion inserted into a respective pair of aligned threaded openings in the first and second elongated hanger bars and threaded therein so that the ratchet teeth engage a hanger bar; c. each hanger bar assembly having a first mounting bracket rotatably attached by a rotatable rivet at an end of the first elongated hanger bar, the rivet extending through an arm plate having a wall which is press fitted against an interior rib on the longitudinal body of the first elongated hanger bar and having a bracket plate supporting a nail, and a second mounting bracket fixedly attached at an end of the second elongated hanger bar and having a bracket plate supporting a nail; and d. the two hanger bars of each hanger bar assembly slidably moved relative to each other so that the distance between the two mounting brackets on the hanger bar assembly is equal to the distance between the two studs and the position fixed by the wing screw, wherein an excess length of each hanger bar is cut off, and the rotatable mounting bracket positioned so that the nail in the rotatable mounting bracket can be hammered into a stud while the ceiling fixture hangs downwardly from the stud and thereafter the mounting bracket is rotated by ninety degrees so that the nail in the opposite fixed mounting bracket can be nailed to the opposite stud.