US Patent 10381808 Cord system for height-adjustable furniture

An electrical power or data system for height-adjustable furniture includes a self-retracting cord section that extends and retracts in response to an upper furniture portion raising and lowering with respect to a lower furniture portion, such as to limit or avoid entanglement of the cord with other objects in the vicinity of the furniture. The system includes an electrical power or data cord having an input end portion and an output end portion, with the retracting cord section disposed between the input and output end portions, and with an electrical power or data connector at the output end portion and configured for mounting along the upper furniture portion.