Patent ID: 7472921

Claim:
A four-sided collapsible chair frame assembly on wheels comprising: i. Four frame sides each comprising two pivotally connected intersecting support members per side; ii. said frame assembly including four upper brackets and four lower brackets: iii. one end of each support member is connected to a lower bracket and the other end of each support member is connected to an upper bracket, wherein the lower end of each support member is connected to a lower bracket that also connects the lower end of an adjacent support member and the upper end of each support member is connected to an upper bracket that also connects the upper end of the adjacent support member, iv. said collapsible chair frame having a designated front side comprising two lower brackets and two upper corner brackets and opposite the front side a designated back side comprising two lower brackets and two upper corner brackets, v. a vertical post mounted on each backside lower bracket and extending vertically from the lower bracket to or through a vertically aligned upper bracket, vi. two telescoping anti-torque posts each extending vertically from the front lower brackets to or through an upper front bracket, vii. a wheel at each corner attached to at least one of: a lower bracket, a structure attached to a lower bracket, a post in vertical alignment with the lower bracket, an attachment to a post in vertical alignment with the lower bracket, whereby a collapsible four-sided wheeled chair frame is formed.