Patent ID: 9452638
Filing Date: 2016-09-27
CPC Classification: B60B

Claim Text:
1. A caster comprising: a wheel supported for rotation about a rolling axis; a pin extending from the wheel along a pin axis in a direction normal to the rolling axis; a mounting plate including a first aperture, the pin is rotatably inserted into the first aperture such that the wheel is rotatable about the pin axis, the mounting plate including a plurality of mounting apertures arranged around the first aperture, wherein a first of the mounting apertures is a first distance from the pin axis and a second of the mounting apertures is a second distance from the pin axis, the second distance being greater than the first distance; and a bearing positioned between the mounting plate and the wheel and arranged to support rotation about the pin axis, wherein the mounting plate includes a first edge, a second edge, and a third edge perpendicular to the first edge and the second edge, and wherein a fourth edge opposite the third edge includes a bulge portion, the first aperture being positioned adjacent the fourth edge, and wherein the third edge includes a recess portion having the same shape as the bulge portion such that the third edge is sized and shaped to match the fourth edge of a separate mounting plate in a nested arrangement.