Step-on receptacle with tip prevention

What is this patent about?

’578 is related to the field of industrial and medical refuse containers, specifically those employing foot-operated mechanisms to provide hands-free access. In environments like hospitals or laboratories, users must deposit biohazardous materials without touching the receptacle, but the mechanical force required to lift a heavy lid often creates a tipping moment. This instability frequently forces users to steady the container with their hands, defeating the purpose of the hands-free design and risking cross-contamination.

The underlying idea behind ’578 is to counteract the rotational force of a foot pedal by integrating a pivoting stabilizer hoop that extends the footprint of the base only when needed. Rather than permanently increasing the bulk of the container or adding heavy counterweights, the invention uses a simple wire geometry that projects forward to surround the pedal. This creates a secondary contact point with the floor that intercepts the downward force of the user’s step, effectively neutralizing the leverage that would otherwise cause the bin to pitch forward.

The claims of ’578 focus on a stabilized receptacle assembly that utilizes a resilient arched hoop attached to the underside of the housing. The independent claims specifically define a structure where the hoop is mounted via opposite ends into the housing, allowing it to pivot between an active, extended position around the foot pedal and a retracted, storage position beneath the bottom wall. This mechanical arrangement ensures that the stabilizer is positioned to engage the floor surface precisely where the user applies downward pressure on the pedal.

In practice, the invention achieves high stability through a minimalist, seven-component design that avoids the need for threaded fasteners. The hoop is made of flexible wire that uses its own internal tension to snap into mounting holes and notches molded into the base flanges. When deployed, the hoop sits slightly above the ground; as soon as a user steps on the pedal and the container begins to tilt, the hoop immediately contacts the floor to provide a rigid brace. For shipping or storage, the hoop can be unclipped from its forward notches and swung backward to tuck neatly under the chassis.

This approach differs from prior solutions that relied on heavy bases or wide, fixed footprints which make receptacles difficult to maneuver in tight spaces. By using a dual-position wire support, the invention provides the stability of a much larger unit without the associated weight or permanent floor-space requirements. Furthermore, the integration of the stabilizer with a snap-fit assembly process reduces manufacturing complexity while ensuring the container remains upright even under the aggressive foot-strokes required for heavy-duty lids.