Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
107 words
In an adjustable support for a tabletop, the combination of a lower tube; an upper tube threadably and rotatably connected to the lower tube and vertically adjustable with respect thereto; and a table support nonrotatably mounted to and between the upper tube and the tabletop; the improvement which comprises: a rigidifying means for adjustably maintaining the lower tube in tight mating relationship to the table support and for providing frictional resistance to rotational movement of the lower tube relative to the upper tube; whereby the tabletop is vertically adjustable with respect to the lower tube by rotation of the lower tube with respect to the upper tube.
Claim 2
Dependent Claim
107 words
In an adjustable support for a tabletop, the combination of a lower tube; an upper tube threadably and rotatably connected to the lower tube and vertically adjustable with respect thereto; and a table support nonrotatably mounted to and between the upper tube and the tabletop; the improvement which comprises: a rigidifying means for adjustably maintaining the lower tube in tight mating relationship to the table support and for providing frictional resistance to rotational movement of the lower tube relative to the upper tube; whereby the tabletop is vertically adjustable with respect to the lower tube by rotation of the lower tube with respect to the upper tube.
Claim 3
Dependent Claim
67 words
An adjustable support according to claim 1 wherein said rigidifying means comprises a wedge ring threadably connected to the upper tube; and a collet engaging at one end the wedge ring and at the other end the table support and adapted to tighten against the lower tube, through forces exerted on the collet by the wedge ring and the table support, when the upper tube is rotated.
Claim 4
Dependent Claim
52 words
An adjustable support according to claim 2 wherein the support further comprises a floor-engaging base on which is rotatably mounted the lower tube; a top cap threadably engaging the upper tube; and a rod rigidly securing the top cap to the upper tube and rotatably mounting the lower tube to the base.
Claim 5
Dependent Claim
60 words
An adjustable support according to claim 3 wherein the lower tube, upper tube, the table support, the top cap, the rod and the base are metal; and the wedge ring and the collet are made of a low-friction plastic so that the collet may slide smoothly on the lower tube when the same is rotated relative to the upper tube.
Claim 6
Dependent Claim
32 words
An adjustable support according to claim 1 wherein the support further comprises a securing means for fixing the lower tube, the upper tube and the table support in said tight, mating relationship.
Claim 7
Dependent Claim
104 words
An adjustable support according to claim 5 wherein the rigidifying means comprises a wedge ring threadably connected to the upper tube; and a collet engaging at one end the wedge ring and at the other end the table support and adapted to tighten against the lower tube, through forces exerted on the collet by the wedge ring and the table support, when the upper tube is rotated; and wherein the securing means comprises at least one plate secured to and between the upper tube and the table support to prevent rotation of the upper tube and loosening of the collet from the leg tube.
Claim 8
Dependent Claim
52 words
An adjustable support according to claim 6 wherein the support further comprises a floor-engaging base on which is rotatably mounted the lower tube; a top cap threadably engaging the upper tube; and a rod rigidly securing the top cap to the upper tube and rotatably mounting the lower tube to the base.
Claim 9
Dependent Claim
67 words
An adjustable support according to claim 7 wherein the lower tube, the upper tube, the table support, the at least one plate, the top cap, the rod and the base are metal; and the wedge ring and the collet are made of a low-friction plastic to enable the collet to slide smoothly on the lower tube upon rotation of the same with respect to the upper tube.
Claim 10
Dependent Claim
111 words
In an adjustable support for a tabletop, the combination of a lower tube; an upper tube threadably connected to the lower tube; a table support mounted to and between the upper tube and the tabletop; a securing means for non-rotatably mounting the upper tube to the table support; wherein the improvement in the securing means comprises at least one plate secured to and between the upper tube and the table support; a floor-engaging base on which the lower tube is rotatably mounted; a top cap threadably engaging the upper tube; and a rod rigidly securing the top cap to the upper tube and rotatably mounting the lower tube to the base.
Claim 11
Dependent Claim
111 words
In an adjustable support for a tabletop, the combination of a lower tube; an upper tube threadably connected to the lower tube; a table support mounted to and between the upper tube and the tabletop; a securing means for non-rotatably mounting the upper tube to the table support; wherein the improvement in the securing means comprises at least one plate secured to and between the upper tube and the table support; a floor-engaging base on which the lower tube is rotatably mounted; a top cap threadably engaging the upper tube; and a rod rigidly securing the top cap to the upper tube and rotatably mounting the lower tube to the base.
Claim 12
Dependent Claim
31 words
An adjustable support according to claim 9 wherein the lower tube, the upper tube, the table support, the at least one plate, the rod and the base are composed of metal.