Trash cans with features to aid in actuation

What is this patent about?

’515 is related to the field of refuse storage receptacles, specifically focusing on lid actuation and locking mechanisms for trash cans. Traditional receptacles often rely on foot pedals or manual lid lifting, which can be cumbersome or prone to mechanical failure. The background context involves providing a more ergonomic and accessible way to release a spring-loaded lid while maintaining a secure closure to contain odors and hide waste.

The underlying idea behind ’515 is a cantilevered actuator that doubles as a locking latch, extending outwardly and downwardly from the rim of the trash can. By positioning the actuator so it protrudes beyond the front face of the bin, the inventor enables a user to trigger the lid release from a wide variety of angles using a hand, hip, or knee. This design leverages a rotational bias to keep the lid locked until a downward force deflects the actuator, creating a simple, gravity-assisted or spring-assisted opening sequence.

The claims of ’515 focus on a lid portion comprising a cap, a rotationally biased lid, and a rotationally biased actuator that extends outwardly and downwardly from the cap's outer edge. The independent claims specifically protect the interaction between a securement member on the lid and a locking member on the actuator. When the actuator is in its closed position, it physically blocks the lid from opening; however, applying a downward force at an effective angle rotates the actuator away from the lid, releasing the latch and allowing the lid to swing open.

In practice, the invention works through a dual-spring mechanism where the lid is biased toward the open position and the actuator is biased toward the closed position. When a user presses down on the sloped surface of the actuator, it rotates against its internal torsion spring, moving the locking flange out of a corresponding recess in the lid. Once the physical interference is removed, the lid’s own biasing member automatically swings it upward, often regulated by a rotary damper to ensure a smooth, controlled motion rather than a violent snap.

This approach differs from prior solutions by eliminating the complex linkages required for foot pedals while providing a larger, more accessible strike zone than traditional push-buttons. A key differentiation is the self-latching geometry: the locking flange features a sloped upper edge that allows the lid to automatically deflect the actuator and re-engage the lock when pushed down manually. This ensures the receptacle remains securely closed without requiring the user to manually reset the locking mechanism, combining hands-free opening potential with a reliable mechanical seal.