Hanger for intravenous bottles

Claim 2

An adjustable intravenous bottle pendant assembly for providing heightwise adjustment of a bottle hanger relative to a ceiling support, comprising a first tubular, vertically directed guide member mounted to the ceiling structure, a second tubular, vertically directed guide member below said first guide member, said second guide member slidably telescoping with said first member to provide vertical adjustment thereof, bearing means comprising a pair of horizontally disposed trunnions mounted in a casing on said second guide member, a band spring assembly including a pair of band spring members each having a free end portion fixed to said first guide member, and a coiled portion rotatably mounted on a different one of said trunnions, said spring assembly being tensioned yieldingly to urge said guide members toward the telescoped position thereof, and manually operable clamp means on said casing for Locking said coiled portions of said spring members against rotation thereby to fix said guide members in a selected telescoped condition, the portions of said spring members between said free ends and said coiled portions being concealed within said tubular members.

Claim 3

The assembly of claim 1 wherein the terminal ends of said coiled portions of said spring members are fixed to collars rotatably mounted on said trunnions, and said clamp means is actuatable to engage and prevent rotation of said collars.

Claim 4

The device of claim 1 wherein said free ends of said springs are anchored adjacent the upper end of said first tubular member.

Claim 5

The device of claim 2 wherein said clamp means comprises a knob, a threaded member operatively associated with said knob, and yieldable spring pressure plate means shiftable into clamping and releasing positions of said collar responsive to operation of said knob.

Claim 6

The apparatus of claim 4 wherein said threaded member is engaged in a complementally threaded aperture in a first wall of said casing and said pressure plate means is mounted to said member and disposed adjacent a second wall of said casing parallel to and spaced from said first wall, said plate means including resilient portions adapted to engage said second wall when said knob is rotated to shift said plate away from said clamping position, whereby to provide resistance to said rotation and thus signal that said plate is clear of said clamping position.

Claim 7

The apparatus of claim 1 wherein said ceiling support includes a horizontal track member, roller means on said first tubular guide member engaging said track member for supporting said pendant for translatory movement along said track member, and locking means interposed between said track member and said roller means adapted to be shifted into engagement with said track for locking said pendant assembly against movement along said track responsive to rotation of said guide means about a vertical axis.

Claim 8

The device of claim 6 wherein said locking means includes a threaded member shiftable toward and away from said track responsive to the direction of rotation of said guide means.

Claim 9

An intravenous bottle pendant assembly adjustably mounted for movement along a horizontal track and for heightwise adjustment relative thereto, comprising a roller assembly adapted to be supported on said track for translatory movement, first and second telescoping vertical guide members slidingly and non-rotatably connected together, said first guide member being secured to said roller assembly, bottle hanger means on said second guide member, lock means interposed between said roller and said track shiftable into clamping engagement of said track responsive to rotation of said guide means about the vertical axis thereof, a control assembly on said second guide means including a band spring assembly having a coiled portion and an extending portion, bearing means in said control assembly rotatably supporting the coiled portion of said spring assembly, the extending portion of said spring assembly passing upwardly through and being concealed within said tubular members with the free end of said extending portion being anchored to said first guide member adjacent an upper portion thereof, said spring assembly being tensioned normally to urge said guide members toward the telescoped condition thereof, and control means for fixing said guide members in a preselected telescoped condition, including an operator portion, and a clamp portion shiftable to clamping and releasing positions of said coiled portion of said spring, whereby said coiled portion is respectively prevented from rotating and free to rotate relative to said bearing means.

Claim 10

An intravenous bottle pendant assembly adjustably mounted for movement along a horizontal track and for heightwise adjustment relative thereto, comprising a roller assembly adapted to be supported on said track for translatory movement, first and second telescoping vertical guide members slidingly and non-rotatably connected together, said first guide member being secured to said roller assembly, bottle hanger means on said second guide member, lock means interposed between said roller and said track shiftable into clamping engagement of said track responsive to rotation of said guide means about the vertical axis thereof, a control assembly on said second guide means including a band spring assembly having a coiled portion and an extending portion, bearing means in said control assembly rotatably supporting the coiled portion of said spring assembly, the extending portion of said spring assembly passing upwardly through and being concealed within said tubular members with the free end of said extending portion being anchored to said first guide member adjacent an upper portion thereof, said spring assembly being tensioned normally to urge said guide members toward the telescoped condition thereof, and control means for fixing said guide members in a preselected telescoped condition, including an operator portion, and a clamp portion shiftable to clamping and releasing positions of said coiled portion of said spring, whereby said coiled portion is respectively prevented from rotating and free to rotate relative to said bearing means.

Claim 11

The device of claim 8 wherein said clamping means comprises a clamp plate shiftable toward and away from said coil portion of said spring assembly, and said operator means includes a threaded member rotatably mounted in said casing and adapted, in said clamping position, to sandwich saiD coil against a first wall of said casing.

Claim 12

The device of claim 9 wherein said plate includes resilient portions adapted to engage a second wall portion of said casing when said operator means is rotated to shift said plate away from said clamping position, thereby to provide resistance to said reverse rotation and exert a drag force against free rotation of said coil.

Claim 13

The device of claim 10 wherein said band spring assembly includes two spring members rotatable about parallel axes, the extending portions of said spring members lying substantially coincident with the vertical axes of said guide members.