Recessed suspended lighting fixture

Claim 2

A lighting fixture comprising a pair of transversely-spaced longitudinally-extending track members, a lamp mount positioned above said track members and comprising a rectangular openbottomed housing including a top wall and depending longitudinal side walls, follower members positioned on said mount and slideably engaging said track members, each of said follower members including a vertical resilient band having an upper section engaging a respective side wall of said housing and a lower section releasably engaging a corresponding track member, a reflector member positioned in said housing and including longitudinally-extending flanges underlying the lower edges of said side walls, said resilient bands being provided with inwardly-directed upwardly-sprung fingers engaging the underfaces of said flanges.

Claim 3

A lighting fixture comprising a pair of transversely-spaced longitudinally-extending track members, a lamp mount positioned above said track members and comprising a rectangular open-bottomed housing including a top wall and depending longitudinal side walls, follower members positioned on said mount and slideably engaging said track members each of said follower members including a vertical resilient band having an upper section engaging a respective side wall of said housing and a lower section releasably engaging a corresponding track member, each of said track members including a longitudinally extending wall provided along its lower inner face with a longitudinally-extending upwardly-facing channel, the lower section of said resilient band being outwardly off-set and having a bottom edge registering with said channel.

Claim 4

A lighting fixture comprising a pair of transversely-spaced longitudinally-extending track members, a lamp mount positioned above said track members and comprising a rectangular open-bottomed housing including a top wall and depending longitudinal side walls, follower members positioned on said mount and slideably engaging said track members each of said follower members including a vertical resilient band having an upper section engaging a respective side wall of said housing and a lower section releasably engaging a corresponding track member, each of said track members including a longitudinally extending wall provided along its lower inner face with a longitudinally-extending upwardly-facing channel, the lower section of said resilient band being outwardly off-set and having a bottom edge registering with said channel.

Claim 5

The lighting fixture of claim 2 wherein each of said track members includes a longitudinally-extending lip positioned above each of said channels, the lower section of each of said resilient bands having an upper shoulder releasably engaging the underface of said lip.

Claim 6

A lighting fixture comprising a pair of transversely-spaced longitudinally-extending track members, a lamp mount positioned above said tracks and comprising a rectangular open-bottomed housing including a top wall and depending longitudinal side walls and transverse first and second end walls and being of a width less than the transverse distance between said track members, a longitudinally spaced pair of follower members depending from each of said side walls and slideably engaging said track members and longitudinally slideably supporting said housing above said track members, at least one of said follower members of each pair thereof being disengagable from a respective track member, a pair of transverse cross pieces extending between and secured to the ends of said track members and defining a rectangular support frame therewith, the length of said casing being greater than that of said frame and the longitudinal distance between said follower members being less than that between said cross-pieces, and a vertical transverse panel spaced from said first end wall and extending between said side walls and delineating a ballast compartment with said side walls and first end wall and a lamp compartment with said side walls and said second end wall, the length of said lamp compartment being approximately equal to the distance between said cross-pieces, said transverse panel having a transverse slot formed therein above the bottom edge thereof and including a lead spring member positioned in said ballast compartment and comprising a pair of depending resilient sprung first and second elements, said first element projecting through said slot and depending below the lower edge of said panel and terminating in an angulAr latching finger and said second element being sprung toward said first end wall and being adapted to engage a ballast member, and a cover panel swingably engaging along one edge thereof the lower edge of said first end wall and releasably engaging said latching finger along its opposite edge.

Claim 7

A lighting fixture comprising a pair of transversely-spaced longitudinally-extending track members, a lamp mount positioned above said tracks and comprising a rectangular open-bottomed housing including a top wall and depending longitudinal side walls and transverse first and second end walls and being of a width less than the transverse distance between said track members, a longitudinally spaced pair of follower members depending from each of said side walls and slideably engaging said track members and longitudinally slideably supporting said housing above said track members, at least one of said follower members of each pair thereof being disengagable from a respective track member, a pair of transverse cross pieces extending between and secured to the ends of said track members and defining a rectangular support frame therewith, the length of said casing being greater than that of said frame and the longitudinal distance between said follower members being less than that between said cross-pieces, and a vertical transverse panel spaced from said first end wall and extending between said side walls and delineating a ballast compartment with said side walls and first end wall and a lamp compartment with said side walls and said second end wall, the length of said lamp compartment being approximately equal to the distance between said cross-pieces, said transverse panel having a transverse slot formed therein above the bottom edge thereof and including a lead spring member positioned in said ballast compartment and comprising a pair of depending resilient sprung first and second elements, said first element projecting through said slot and depending below the lower edge of said panel and terminating in an angulAr latching finger and said second element being sprung toward said first end wall and being adapted to engage a ballast member, and a cover panel swingably engaging along one edge thereof the lower edge of said first end wall and releasably engaging said latching finger along its opposite edge.

Claim 8

The lighting fixture of claim 4 wherein said sprung second element has a tool receiving aperture formed adjacent to the free end thereof.

Claim 9

A suspended ceiling light supporting structure comprising a plurality of transversely spaced longitudinally extending beams provided with tracks along the confronting faces of adjacent beams, means for horizontally suspending said beams from overhead supports, cross-pieces extending between and slidably engaging adjacent tracks, and means for adjustably locking said cross-pieces to selected positions along the lengths of said beams and each of said beams including a pair of vertically spaced longitudinal tracks having confronting channels, said cross-pieces terminating in longitudinal end panels engaging said lower tracks and provided with locking ears, and said locking means comprises spring members including opposite upper and lower legs engaging said upper tracks and said locking ears respectively.

Claim 10

A suspended ceiling light supporting structure comprising a plurality of transversely spaced longitudinally extending beams provided with tracks along the confronting faces of adjacent beams, means for horizontally suspending said beams from overhead supports, cross-pieces extending between and slidably engaging adjacent tracks, and means for adjustably locking said cross-pieces to selected positions along the lengths of said beams and each of said beams including a pair of vertically spaced longitudinal tracks having confronting channels, said cross-pieces terminating in longitudinal end panels engaging said lower tracks and provided with locking ears, and said locking means comprises spring members including opposite upper and lower legs engaging said upper tracks and said locking ears respectively.

Claim 11

The structure of claim 6 wherein each of said beams includes a coupling flange extending along the upper border thereof and said suspending means comprises a coupling member including a pair of depending spring arms terminating in inwardly directed hook sections engaging the under face of said coupling flange.

Claim 12

The structure of claim 7 wherein said flange terminates in depending lips and said hook members include arms upwardly inclined toward each other.