Receptacle with motion damper for lid

What is this patent about?

’024 is related to the field of waste receptacles equipped with motion-controlled lids. Specifically, it addresses the mechanical challenges of integrating dampening systems into foot-pedal operated trash cans to prevent the lid from slamming shut, which often results in excessive noise and mechanical wear over time.

The underlying idea behind ’024 is that a fluid damper can be repurposed as a structural support element while being strategically positioned to handle high reaction forces. By shifting the damper from a suspended bracket to a stabilized mount on the lower portion of the receptacle, the design achieves greater rigidity and simplifies the internal architecture, avoiding the need for complex reinforcement of the upper frame.

The claims of ’024 focus on a receptacle assembly where a fluid damper housing is secured and stabilized to the lower portion of the body or base. The independent claims specifically protect the integration of this damper with a lid-actuation linkage and, notably, a configuration where the damper housing serves as a rest to hold an internal liner in an elevated position for easier bag replacement.

In practice, the system utilizes a piston equipped with a one-way lip seal that acts as a check valve, allowing the lid to open with minimal resistance while providing significant air-resistance during the closing stroke. The engineering precision is found in the spacing between the piston and the top of the housing; by maintaining a gap of less than 4% of the total travel, the system creates an initial slow-motion effect that gradually transitions into a controlled, silent close.

This approach differs from prior solutions by solving the ergonomic problem of bag changes through the same component that manages lid kinetics. While traditional dampers are purely functional components hidden in the linkage, this invention utilizes the damper’s physical housing as a secondary support tier, allowing the user to prop up the inner liner without removing it entirely from the shell.