Patent ID: 7455493

Claim:
A ball pickup device driven by a prime mover for picking up a plurality of balls on a supporting surface, the ball pickup device comprising: a frame having a rear end operatively connected to the prime mover and a forward end located forwardly from the rear end; a plurality of gang assemblies operatively connected to the frame and comprising a basket, a plurality of tines, and a plurality of flexible discs mounted to the frame for rotation about a substantially horizontal disc axis; each of the plurality of flexible discs having an outer circular edge that rests and rolls upon the supporting surface; a plurality of disc spaces between adjacent ones of the plurality of discs, the disc spaces being dimensioned and the flexibility of the discs being chosen so that at least some of the plurality of discs engage and retain each of the plurality of balls in the disc spaces while the discs are rolling on the supporting surface; the basket being mounted adjacent the plurality of flexible discs; each of the plurality of tines extending into one of the disc spaces for engaging the balls retained therein and for causing the balls to be removed and deposited into the basket; one of the plurality of gang assemblies being positioned forward of the other of the plurality of gang assemblies; a float wheel mounted to the one gang assembly for rotating on the supporting surface about a substantially horizontal wheel axis parallel to, or coincident with, the disc axis, the float wheel and the plurality of discs engaging and rolling upon the support surface; a float, wheel frame mounted to the float wheel; a disc frame mounted to the plurality of disks; and a universal joint connecting the float wheel frame and the disc frame for pivotal movement about a first pivotal axis and a second pivotal axis being perpendicular to the first pivotal axis.