Patent ID: 8561857

Claim:
A cap comprising: a top portion comprising a top portion bottom surface and a top portion top surface, wherein a single off-centered opening extends from the top portion bottom surface through the top portion top surface; and a bottom portion comprising a bottom portion bottom surface and a bottom portion top surface, wherein the bottom portion bottom surface comprises a centered opening; wherein the top portion is couplable to the bottom portion, the top and bottom portions being configured to cause the cap to reach an open position starting from a closed position when: the top portion is rotated in a clockwise direction with respect to the bottom portion from a closed position; and the top portion is rotated in a counterclockwise direction with respect to the bottom portion from the closed position, wherein the top and bottom portions are configured to restrict relative rotation between them to less than 360 degrees, and wherein the top and bottom portions are configured such that a product can enter the centered opening and exit the single off-centered opening.