Patent No. US7370919 (titled "Waste container with hidden slides") on Jul 7, 2003. The application was issued on May 13, 2008.
’919 is related to the field of kitchen storage solutions, specifically pull-out waste management systems designed for installation within cabinetry. In typical under-counter trash systems, the mechanical slides are mounted in exposed locations between the cabinet walls and the container tray. This configuration frequently leads to the accumulation of food debris, dust, and liquid waste within the sliding tracks, which causes mechanical binding, corrosion, and hygiene issues over time.
The underlying idea behind ’919 is to utilize the geometry of the tray or container lid as a protective housing for the mechanical interface of the slides. Rather than leaving the rails exposed to the vertical path of falling debris, the invention employs a structural overhang or depending edge that creates a dedicated internal channel. By tucking the sliding components underneath this protective lip, the system uses the tray itself as a physical shield, ensuring that any spilled waste is diverted away from the lubricated tracks and ball bearings.
The claims of ’919 focus on a specific spatial arrangement where the tray includes a downwardly depending edge that defines a protective channel along its side. The slide mechanism is strategically positioned so that the stationary rail is offset from the cabinet wall, allowing this downward edge to pass between the rail and the wall. This configuration ensures that the interface where the two rails meet is housed entirely within the channel, effectively sealing the mechanical components from the waste-loading zone.
In practice, the system functions by mounting the first slide to the cabinet interior using an offset that provides clearance for the tray's perimeter. The second slide is fastened to the underside of the tray's top surface or rim. When the tray is extended to receive trash, the telescoping interface remains sheltered beneath the tray’s horizontal surface and behind its vertical edge. This creates a labyrinth-like barrier that prevents particulates from reaching the sliding surfaces from either the top or the sides.
This approach differs from prior art by moving away from simple side-mounted drawer slides that rely on external clearances. Instead of requiring separate, bulky covers or specialized cleaning, the ’919 design integrates the shielding function directly into the tray's load-bearing structure. By nesting the mechanical interface within a recessed channel formed by the tray's own geometry, the invention achieves a cleaner aesthetic and significantly higher mechanical reliability in the high-debris environment of a kitchen cabinet.
In the early 2000s when ’919 was filed, pull-out kitchen storage systems were typically implemented using slide mechanisms mounted in exposed locations between the interior cabinet walls and the exterior sides of the drawer or tray. At a time when these systems commonly relied on side-mounted hardware, the open architecture of the cabinet interior made the mechanical tracks susceptible to the accumulation of household dust, food particles, and refuse debris. Hardware constraints of the era meant that maintaining smooth linear motion over time was non-trivial, as the ingress of foreign materials into the ball-bearing or roller interfaces frequently led to increased friction, mechanical wear, and premature failure of the sliding components.
The disclosed invention achieves a technical advancement in cabinetry hardware through an architectural shift that integrates protective shielding directly into the waste container and tray assembly. By positioning the slide mechanisms such that the container top or a dedicated slide cover extends laterally over the engaging tracks, the system creates a physical barrier that prevents debris from entering the mechanical interfaces. This configuration overcomes the technical constraint of environmental contamination in kitchen environments, ensuring consistent operation of self-closing and shock-absorbing features. The integration of the shielding element as a functional part of the container or tray structure enables a dual-purpose design that simultaneously conceals the hardware from view and protects the precision movement components from the operational hazards of waste collection.
The patent contains a total of 14 claims, with claims 1 and 9 serving as the independent claims. These independent claims focus on a kitchen trash container system featuring a sliding tray and a specific slide mechanism designed with a downwardly depending edge that forms a protective channel to prevent debris from fouling the slide interface. The dependent claims serve to further specify the structural arrangement and mounting locations of the slide mechanism, including its attachment to different portions of the cabinet frame and the use of multiple pairs of cooperating slides integrated within the tray walls.
Definitions of key terms used in the patent claims.
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