Container system with a removable cap

A cap for a childproof container, comprising:

• a body extending from an upper end to a lower end, wherein a flange defines an opening at the upper end of the body, and the opening provides access to an interior volume of the body;
• a bias member positioned in the interior volume of the body;
• and
• an upper member positioned in the interior volume of the body between the bias member and the flange, wherein, in an initial state, the bias member biases the upper member against the flange with a predetermined force, and wherein, in an actuated state, an external force overcomes the predetermined force to press the upper member away from the flange to allow a finger to enter the interior volume and pull on the flange to remove the cap from a container.

A childproof container system, comprising:

• a container having an inner surface that defines an interior volume, wherein the inner surface has an inwardly extending shoulder;
• a cap positionable in the interior volume of the container such that a lower end of the cap contacts the shoulder, and an outer surface of the cap forms an interference fit with the inner surface of the container;
• an inwardly extending lip at an upper end of the cap that defines an opening into the cap;
• and
• a disc and a bias member positioned in the cap, wherein the bias member is configured to bias the disc toward a bottom surface of the inwardly extending lip, wherein the disc is configured to be pressed by a finger to overcome a force produced by compressing the bias member, and the inwardly extending lip is configured to receive a pulling force from a finger to overcome a friction force created by the interference fit and remove the cap from the container.