Patent ID: 9357848
Filing Date: 2016-06-07
CPC Classification: A47C,B65B,B65G,Y10T

Claim Text:
1. A method for stacking chair bases, the method comprising: positioning a first chair base adjacent a second chair base, wherein the first chair base and the second chair base are separate chair bases to be stacked upon one another, and wherein each chair base comprises: aligning the first chair base hub coaxially with the second chair base hub, such that the bottom end of the first chair base hub is over the top end of the second chair base hub; engaging the bottom end of the first chair base hub with the top end of the second chair base hub in order to couple the first chair base to the second chair base, such that the annular ring of the bottom end of the first chair base hub is disposed within at least a part of the inner diameter of the top end of the second chair base hub, the outer diameter of the first chair base ring engaging the inner diameter of the top end of the second chair base to prevent lateral displacement of the first chair base relative to the second chair base; limiting the axial engagement of the first chair base with the second chair base in that the annular ridge of the first chair base abuts the top end of the second chair base hub; and restricting rotation of the legs of the first and second chair bases about the axis of the hubs.