Patent ID: 8752669

Claim:
A scaffold assembly comprising: a first scaffold having a stack pin; a second scaffold having an opening; and an adaptor attaching the first scaffold to the second scaffold, the adaptor comprising a sleeve having a first end, a second end, and an orifice at the second end receiving the stack pin, an exterior surface including a tapered section at the first end inserted into the opening to stack the second scaffold on top of the first scaffold, and a threaded hole in the sleeve adapted for receiving a set screw therethrough so that the set screw engages the stack pin received in the orifice to secure the adaptor to the stack pin, the threaded hole comprising a first hole, the sleeve including a second hole positioned for alignment with a hole in the second scaffold so that a pin can be received through the hole in the second scaffold and the second hole in the sleeve to secure the second scaffold to the adaptor, the sleeve having an interior surface and a shoulder formed in the interior surface separating the sleeve into upper and lower portions, the lower portion having an inner diameter smaller than an inner diameter of the upper portion.