Patent ID: 8591129

Claim:
A lipstick assembly, comprising: an outer tube having a cap sealing a top opening of said outer tube, said cap pin-joined to a rim of said top opening, a vertical groove configured along an inner surface of said outer tube, a semi-circular indentation in an upper section of said inner surface; a middle tube having a protrusion in a middle section of an outer surface of said middle tube, an upper helical groove in an upper section of an inner surface of said middle tube, at least a lower helical groove in a lower section of said outer surface of said middle tube; a lipstick base having a lipstick threading into a top end of said lipstick base and a protrusion on an outer surface adjacent to a bottom end of said lipstick base, said lipstick base inserted into a top end of said middle tube with said protrusion of said lipstick base embedded into said upper helical groove; and a rotational control base having at least a protrusion on an inner surface of said rotational control base; said rotational control base plugged over a bottom end of said middle tube with said protrusion of said rotational control base embedded into said lower helical groove; wherein the joined lipstick base, said middle tube, and said rotational control base are threaded into a bottom end of said outer tube with said protrusion of said middle tube embedded into said vertical groove of said outer tube; and, when said rotational control base is twisted along a direction, said middle tube is raised to push said cap open and, subsequently, said lipstick base is raised outside of said outer tube.