US Patent 7950325 Trash compactor

A side loading trash compactor, comprising a frame defining a cavity, a receptacle for containing trash, a platen movable to compress trash collected in the receptacle, a first set of linkages having a first end attached to the frame by a first simple hinge joint, the first simple hinge joint having an axis of rotation, and a second end attached to the platen by a second simple hinge joint, a second set of linkages having a first end attached to the frame by a third simple hinge joint, and a second end attached to the platen by a fourth simple hinge joint, and a drive mechanism configured to move the plate up and down, wherein the first and second set of linkages operate in intersecting planes.