US Patent 7474522 Height adjustment mechanism for electronic equipment

A height adjustment mechanism for electronic equipment is disclosed. The height adjustment mechanism includes a first sliding component that includes a first set of mechanical structures for engaging a second set of mechanical structures, a first mechanical sub-component coupled to the first sliding component and coupled to a second mechanical sub-component that includes the second set of mechanical structures and a second sliding component coupled to the first sliding component. The first set of mechanical structures and the second set of mechanical structures are configured to mesh. A movement of the first sliding component causes either an expansion or a retraction of the first mechanical sub-component.