Patent ID: 7549952
Filing Date: 2009-06-23
Classification: A63B

Abstract:
1. An adjustable dumbbell, which comprises: (a) a lifting handle having a hand grip, wherein the handle has a transverse centerline substantially perpendicular to the hand grip; (b) a plurality of individual weights having overlying portions, wherein the overlying portions of the weights are provided in two groups with a first group of overlying portions being on a front side of the dumbbell and a second group of overlying portions being on a rear side of the dumbbell; (c) a plurality of sets of aligned holes and slots placed in the overlying portions of the weights, wherein each set has a unique arrangement of holes and slots, wherein two duplicate arrays of the plurality of sets of aligned holes and slots are provided with one array being placed to the left of the transverse centerline and the other array being substantially symmetrically placed to the right of the transverse centerline, and wherein the duplicate arrays are provided on both the first and second groups of overlying portions; and (d) a connecting pin selectively insertable through any one set of holes and slots in a particular array of holes and slots to select for use a particular weight or weights as determined by the hole and slot arrangement in the set through which the pin passes, wherein two individual connecting pins are provided with one pin passing through a selected set of holes and slots in one array and the other pin passing through a corresponding set of holes and slots in the other array, whereby the pair of pins connect the weights to the handle symmetrically relative to the transverse centerline, and wherein each of the connecting pins is long enough to extend between the front and rear sides of the dumbbell such that each pin is simultaneously received in the selected set of holes and slots in both the first and second groups of overlying portions.