System and method for securing containers

A method for securing a first container having an upper locking portion to a second container having a lower locking portion, the method comprising:

• causing the upper locking portion to pivot from a locked position to an unlocked position;
• positioning a relative bottom of the second container substantially flush with a relative top of the first container;
• causing the upper locking portion to pivot to locked position;
• and
• applying a force to the lower locking portion to cause the lower locking portion to pivot from a locked position to an unlocked position, the force being applied in a direction that is substantially perpendicular to and extending away from a plane defined by the substantially flush position of the first and second containers,
• wherein:
• in the locked position, the upper locking portion secures the second container to the first container,
• in the unlocked position, the upper locking portion does not interface with the second container, and
• the pivoting of the lower locking portion causes the lower locking portion to interface with the upper locking portion and to force the upper locking portion to pivot from the locked position to the unlocked position.

A system comprising a first container, the first container comprising:

• a first upper portion comprising an upper locking portion including a first pivot structured to interface with a container;
• and
• a first lower portion comprising a lower locking portion including a second pivot structured to interface with the container,
• wherein the first pivot is sized and shaped to interface with a second lower portion of a second container, and
• wherein the second pivot is sized and shaped to interface with a second upper portion of the second container.

A system for securing a first container to a second container, the system comprising:

• a locking portion on the first container, the locking portion comprising:
• a body having a protrusion extending laterally from the body towards a relative center of the first container;
• and
• an arm structured to float within a cavity of the first container and rotate about an axis, the axis defining a pivot point for the body about the cavity,
• wherein:
• the protrusion abuts the second container and restricts movement of the second container in a locked position, and
• the body is configured to rotate about the cavity from the locked position to an unlocked position in which the protrusion is disengaged from the second container.

A method for securing a first container having a locking portion to a second container, the method comprising:

• causing the locking portion to pivot from a locked position to an unlocked position;
• positioning a relative bottom of the second container substantially flush with a relative top of the first container;
• causing the locking portion to pivot to locked position;
• and
• applying a force to the locking portion to cause the locking portion to pivot from the locked position to the unlocked position, the force being applied in a direction that is substantially perpendicular to and extending away from a plane defined by the substantially flush position of the first and second containers,
• wherein:
• in the locked position, the locking portion secures the second container to the first container, and
• in the unlocked position, the locking portion does not interface with the second container.