Patent No. US5743067 (titled "Device For Loading Storage Containers For Elongated Articles") was filed by GD Societa PER Azioni on Jan 30, 1996. The application was issued on Apr 28, 1998.
’067 is related to the field of industrial packaging for elongated consumer goods, specifically the high-speed handling of tobacco products. In cigarette manufacturing, buffer systems are required to manage the flow between production and packing machines. These systems often utilize large storage containers that must be filled efficiently and precisely to prevent product damage or misalignment during transport.
The underlying idea behind ’067 is to achieve a dense, stable quincuncial arrangement—a staggered, honeycomb-like pattern—without the mechanical complexity of shifting the entire container or using oscillating gates. By combining a specific geometry of the delivery channels with a profiled support surface, the system uses gravity and the natural geometry of the articles to self-organize the stack as it builds.
The claims of ’067 focus on a loading mechanism comprising a feedbox with multiple parallel channels that are all uniformly inclined at a specific angle relative to a vertically movable support plate. This plate features a series of scalloped seats separated by ridges, where each delivery channel is precisely aligned so its outlet faces a ridge rather than a seat, forcing the articles to distribute into a staggered formation.
In practice, the device operates by positioning the profiled plate just below the feedbox outlet. Because the channels are tilted—ideally at an angle of 60 degrees—the first layer of cigarettes is forced into every other seat on the plate. As the plate descends, the next layer of cigarettes is guided by the first layer into the remaining empty seats, naturally creating the offset required for a stable, interlocking stack.
This approach differs from prior solutions by eliminating the need for transverse mechanical actuators or vibrating components that often cause tobacco fallout or physical degradation of the cigarettes. By using the rib-to-channel alignment and gravity-fed lateral shifting, the invention achieves a perfectly ordered mass using a simplified, continuous vertical motion that is both gentler on the product and mechanically more robust.
In the mid-1990s when ’067 was filed, the automated handling of mass-produced elongated articles like cigarettes was typically implemented using vertical feedbox channels that relied on gravity-fed columns. At a time when achieving high-density packing required specific geometric arrangements, systems commonly relied on complex mechanical actuators to transversely shift either the storage container or the individual article columns to create an interlocking quincuncial pattern. Hardware constraints in high-speed manufacturing made this mechanical shifting non-trivial, as the resulting transverse stress often led to material degradation, such as tobacco fallout, and required intricate synchronization of multiple moving parts at the feedbox outlet.
The disclosed invention represents a technical advancement in article loading through an architectural shift that eliminates the need for transverse mechanical oscillation. By integrating a receiving plate featuring fixed ribs and seats with a feedbox where the delivery channels are uniformly inclined at a specific angle—ideally between 50 and 70 degrees—the system achieves a self-organizing staggered packing pattern. This structural configuration ensures that each article column is naturally offset relative to the plate's seats without active lateral displacement. The technical effect is a simplified loading mechanism that reduces mechanical complexity and minimizes physical stress on the articles while maintaining maximum storage density and structural stability within the container.
The patent contains a total of 0 claims, with no independent claims identified to establish the primary scope of the invention. Consequently, there are no independent claims to define a specific technological focus, nor are there any dependent claims to provide additional limitations or specific embodiments of the underlying disclosure.
Definitions of key terms used in the patent claims.

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