How Warehouses Sort Items with Magnetic Levitation Shuttles

This patent describes a warehouse system that uses magnetic levitation shuttles to quickly sort individual items for customer orders, guided by a control system that directs shuttles based on item type and order needs.

What it covers

This patent describes a warehouse system designed to sort items quickly for customer orders. It features a "conveyance system" with many "shuttles" that carry individual items (Claim 1). Workers at "manual decantation stations" load items onto these shuttles. The shuttles travel along pathways using "magnetic levitation," meaning they float above the surface without touching it, and each shuttle can move independently (Claim 1). A "control system" tells each shuttle where to go based on the item it carries and the order it belongs to (Claim 1). For example, if a shuttle carries an item for a specific order, the control system directs it to the correct "automated order sortation system" or even a "manual order sortation system" (Claims 3, 4, 6). The system can also link two or more shuttles together, or "gang" them, to transport larger or heavier items (Claim 1).

What it doesn't cover

• —Does not cover warehouse sorting systems that use wheels, belts, or other non-magnetic levitation methods for moving items.
• —Does not cover systems where items are loaded onto shuttles entirely automatically without any human involvement at a decantation station.
• —Does not cover systems where shuttles cannot travel independently or be linked together to carry larger items.
• —Does not cover sorting systems that lack a central control system to direct shuttles based on item type and order requirements.
• —Does not cover systems that only use a single type of sortation (e.g., only automated or only manual) without routing items to different types.

The clever bit

The clever bit is the combination of independent magnetic levitation shuttles that can also be "ganged together" for larger items, all precisely controlled to route items based on their type and destination order. This allows for flexible, high-speed, and space-efficient sorting that adapts to varying item sizes and order complexities.

Why it matters

Efficient warehouse automation is crucial for modern retail and e-commerce, allowing companies to fulfill orders faster and at a lower cost. This patent offers a system to streamline the complex process of sorting individual items into specific customer orders. By using high-speed magnetic levitation and intelligent routing, it aims to significantly expedite order fulfillment and store replenishment processes, which directly impacts customer satisfaction and operational expenses for large retailers.

Real-world examples

• 1.Amazon fulfillment centers
• 2.Walmart distribution centers
• 3.Target's own warehouse operations
• 4.Automated storage and retrieval systems (AS/RS)
• 5.E-commerce logistics hubs