Patent ID: 8740191

Claim:
A laboratory jack comprising: a first support plate; a second support plate; a scissors jack assembly disposed between and connected to the first and second support plates, the scissors jack assembly comprising at least a first scissor assembly and a second scissor assembly, the first and second scissor assemblies being substantially identical, spaced apart, and parallel to each other, and first and second connection members spaced apart and connecting opposing positions on the first and second scissor assemblies, wherein the first connection member comprises a first mounting block fixedly attached to at least one of the first support plate and the second support plate; a linear drive operatively connected to the scissors jack assembly actuating the scissors jack assembly to drive the second support plate toward and away from the first support plate in a vertical direction; and a guide member extending from the first connection member to the second connection member, the guide member spaced between the first scissors assembly and the second scissors assembly, the guide member fixedly attached to the first connection member on one end and movably attached to the second connection member, wherein the second connection member slides along the guide member as the scissors jack assembly lowers or raises the second support plate.