Opening device for a garbage can having two hinged lid segments

Patent No. US6626317 (titled "Opening device for a garbage can having two hinged lid segments") on Feb 23, 2001. The application was issued on Sep 30, 2003.

What is this patent about?

’317 is related to the field of waste management receptacles, specifically focusing on foot-operated garbage cans designed for efficient space utilization and improved access. Traditional pedal-actuated bins often suffer from lids that fail to clear the opening entirely, obstructing the user’s reach, and their bulky geometries frequently lead to wasted space in tight kitchen environments or modular recycling setups.

The underlying idea behind ’317 is to replace the single, heavy lid of a traditional bin with a dual-wing split lid system integrated into a sector-shaped chassis. By dividing the lid into two wedge-shaped segments that swing outward on independent axes, the invention ensures that the center of the opening is completely unobstructed when the pedal is depressed, allowing for a vertical drop of waste into the container.

The claims of ’317 focus on a garbage can featuring a sector-shaped geometry—specifically a quarter-circle footprint—equipped with two lid segments that are actuated by a common foot pedal. The mechanical linkage utilizes vertical rods that translate the downward force of the pedal into an upward thrust, lifting the lid segments synchronously via articulated lever arms attached to the underside of each wing.

In practice, the invention employs a specialized crimp-rod linkage where the vertical bars are bent at an obtuse angle to optimize leverage during the initial lift phase. As the pedal is depressed, these rods move through guide slots that allow for slight lateral shifting, accommodating the curved path of the lid’s rotation. This ensures the lids can reach a near-vertical orientation, maximizing the entry cross-section for the user.

This design differentiates itself from prior art by enabling modular scalability; the quarter-circle shape allows multiple units to be clustered into half-circle or full-circle configurations without creating 'dead zones' of wasted space. Furthermore, the inclusion of a damping mechanism and a recuperating spring solves the common issues of noisy lid slamming and the mechanical difficulty of closing a lid that has been opened to a perfectly vertical position.

How does this patent fit in bigger picture?

Technical Landscape

In the early 2000s when ’317 was filed, waste management receptacles were typically implemented using unitary hinged lids that pivoted along a single rear axis. At a time when systems commonly relied on single-chamber cylindrical or rectangular casings, the integration of multiple waste streams within a single footprint was often restricted by fixed internal dividers or inefficiently nested containers. Hardware constraints related to foot-pedal linkages made it non-trivial to achieve a full 90-degree clearance of the opening, as standard mechanical actuators frequently resulted in lid obstructions that limited vertical access to the container interior.

Prosecution Position

The disclosed invention achieves a technical advancement in access efficiency and modular spatial utility through an architectural shift from a single lid to a dual-wing, wedge-shaped lid assembly. By utilizing two synchronized lid segments that swing upward and outward around independent axes, the system enables a nearly total vertical clearance of the entry opening, overcoming the technical constraint of lid overhang common in pedal-actuated designs. Furthermore, the quarter-circle geometry of the casing enables a modular integration capability, allowing multiple units to be flush-mounted in various configurations to eliminate dead zones and adapt to increasing capacity requirements without increasing the mechanical complexity of the individual opening mechanisms.

Claims

The patent contains a total of 0 claims, with no independent claims identified. Consequently, there are no independent claims to define the core focus of the invention, and no dependent claims exist to provide additional technical details or specific embodiments.

Key Claim Terms New

Definitions of key terms used in the patent claims.

Term (Source)Support for SpecificationInterpretation
Crimp
(Claim 1)
Power ratios can be further improved when the bar has a crimp in its upper end pointing inward away from the lid segment. This design allows the bar to shift a little to the side during its upward movement as the articulation point shifts in a curved motion.A bend or offset in the upper portion of the lifting bar directed away from the lid segment to facilitate the mechanical movement required to swing the lid.
External swing axes
(Claim 1)
Each lid segment has its own swing axis. When the foot lever is operated, the bars for all lid segments are raised synchronously and both lid segments are synchronously opened upward and outward around their external swing axes.The fixed pivot points or hinges located at the outer edges of the container opening around which the lid segments rotate to open upward and outward.
Pie slice-shaped outline
(Claim 1)
The casing of the garbage can has a pie slice-shaped outline, with a quarter circle contour being especially preferable. This shape allows two, three, or four garbage cans to be placed next to one another to form a half-circle, three-quarter circle, or full circle (cylindrical) ensemble with optimal use of space.The geometric footprint or horizontal cross-section of the garbage can casing, characterized by a radial shape such as a quarter-circle.
Short lever arm
(Claim 1)
Each bar is connected at its upper end in an articulated manner with a short lever arm, which in turn is connected rigidly with the lid segment. The articulation point of the bar to the lever arm is preferably positioned at a distance from the swing axis of the lid segment to result in a better power ratio.A rigid mechanical extension connected to the lid segment that provides an articulation point for the lifting bar at a distance from the pivot axis to improve mechanical advantage.
Wedge-shaped lid segments
(Claim 1)
The lid consists of two wedge-shaped lid segments of about equal size, each of which has its own swing axis. They swing upward like double-wing doors when the foot lever is pressed down. In a quarter circle contour garbage can, each lid segment has a contour which is approximate eighth-circle shaped.Two separate cover components of approximately equal size that together form the lid, where each segment has a tapered or triangular-like profile suitable for a non-rectangular container opening.

Litigation Cases New

US Latest litigation cases involving this patent.

Case NumberFiling DateTitle
4:25-cv-00503May 22, 2025Simplehuman Llc V. Hms Manufacturing Company Llc

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US6626317

Application Number
US09791957A
Filing Date
Feb 23, 2001
Publication Date
Sep 30, 2003
External Links
Slate, USPTO , Google Patents