Receptacle with motion damper near lid

What is this patent about?

’093 is related to the field of waste management containers, specifically foot-pedal operated trash cans equipped with mechanisms to control the speed and noise of the lid during operation. Traditional pedal-actuated bins often suffer from loud slamming and mechanical wear because the lid falls unchecked under gravity once the user releases the pedal. The invention seeks to provide a more refined user experience by integrating a dampening system that smooths the lid's transition without sacrificing the internal storage capacity of the container.

The underlying idea behind ’093 is the strategic relocation of the dampening mechanism from the base or interior of the bin to the upper exterior region near the lid hinge. By moving the damper to the top and routing the mechanical linkage—a rigid rod—along the exterior of the main body, the design eliminates the need for bulky internal housings or secondary liners that typically protect the mechanics from trash. This creates a clean-profile interior that maximizes usable volume and allows for a smooth, unobstructed bottom surface that is easier to clean and more efficient for bag placement.

The claims of ’093 focus on a receptacle assembly where a force-communicating rod connects a foot pedal to a pivoting lid, characterized by a motion damper positioned near the lid that remains interfaced with the rod throughout the entire range of motion. The independent claims specifically require that the rod extends along an exterior region of the body below the damper and actively drives at least two components of the damper between distinct configurations during both the opening and closing strokes. This ensures that the dampening force is consistently applied and that the mechanical transition between the pedal's actuated and resting states is controlled.

In practice, the system utilizes a fluid-based piston and cylinder arrangement where the rod pushes the piston into a compressed state as the lid opens and pulls it back during closing. A check-valve sealing member on the piston head is designed to offer minimal resistance when the user steps on the pedal, allowing for a responsive opening, but generates significant pneumatic resistance as the lid descends. This differential resistance ensures the lid closes in a slow, silent, and aesthetically pleasing manner, typically taking several seconds to reach the fully seated position.

This approach differentiates itself from prior art by avoiding the common practice of hiding the dampening hardware under the floor of the bin or within the waste compartment. By mounting the damper externally near the hinge and using the exterior rod linkage, the invention solves the problem of mechanical interference with the trash bag. Furthermore, the specific spacing between the piston and the cylinder head at maximum extension is calibrated to prevent the lid from bouncing, ensuring a smooth deceleration that protects the components from the high-impact forces seen in conventional step cans.