IP Library Granted Patent US 12,479,626
Granted Patent B1
US 12,479,626 · App. 17/852,843 · Granted Nov 25, 2025

Robot assisted direct-to-pack sortation systems

Inventors: Mainak Sengupta (Natick, MA); CJ Sturges (Nashville, TN)
Assignee: Amazon Technologies, Inc.
B65D19/02B65D19/10B65G1/0492B65G1/065B65G1/1378B66F9/063
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Quick Facts
Patent No.
US 12,479,626
App. No.
17/852,843
Granted
Nov 25, 2025
Kind
B1
Abstract

Systems, methods, and computer-readable media are disclosed for robot assisted direct-to-pack sortation. In one embodiment, an example autonomous robot may include one or more forks, and a controller configured to determine that a first container is empty, transport the first container to a pick docking station, retrieve a second container from an induct station, wherein the second container is full, transport the second container to a buffer area, determine that the first container is full, and transport the first container to the buffer area.

Claims (62)

1 . A system to sort bulky items, the system comprising:

a first container comprising fencing along three walls, an open fourth wall, and a platform having slots;

an autonomous robot comprising forks configured to engage the slots on the platform of the first container, wherein the autonomous robot is configured to raise and transport the first container; and

a controller configured to:

determine that the first container is empty;

cause the autonomous robot to transport the first container to a pick docking station;

cause the autonomous robot to retrieve a second container from an induct station, wherein the second container is full;

cause the autonomous robot to transport the second container to a buffer area;

cause the autonomous robot to transport the second container to a packing station;

determine that the first container is full;

cause the autonomous robot to retrieve a third container from the buffer area, wherein the third container is empty;

cause the autonomous robot to transport the third container to the pick docking station; and

cause the autonomous robot to transport the first container to the buffer area.

2 . The system of claim 1 , wherein the second container is transported while the first container is being filled.

3 . The system of claim 1 , wherein the controller is further configured to:

determine a time sensitivity metric associated with a fourth container; and

transport the fourth container directly to the packing station while bypassing the buffer area based at least in part on the time sensitivity metric.

4 . The system of claim 1 , wherein the system comprises the pick docking station, the induct station, the buffer area, and the packing station.

5 . An autonomous robot comprising:

memory comprising computer-executable instructions; and

one or more computer processors configured to access the memory and execute the computer-executable instructions to:

determine that a first container is empty;

transport the first container to a pick docking station;

retrieve a second container from an induct station, wherein the second container is full;

transport the second container to a buffer area;

determine that the first container is full; and

transport the first container to the buffer area.

6 . The autonomous robot of claim 5 , wherein the second container is transported while the first container is being filled.

7 . The autonomous robot of claim 5 , wherein the one or more computer processors are further configured to execute the computer-executable instructions to:

determine a time sensitivity metric associated with a third container; and

transport the third container directly to the packing station while bypassing the buffer area based at least in part on the time sensitivity metric.

8 . The autonomous robot of claim 5 , wherein the one or more computer processors are further configured to execute the computer-executable instructions to:

determine that a packing station has an opening; and

transport the second container from the buffer area to the packing station.

9 . The autonomous robot of claim 5 , wherein the one or more computer processors are further configured to execute the computer-executable instructions to:

retrieve a third container from the buffer area, wherein the third container is empty; and

transport the third container to the pick docking station.

10 . The autonomous robot of claim 5 , wherein the autonomous robot comprises one or more forks.

11 . The autonomous robot of claim 10 , wherein the first container is a cage comprising fencing along three walls, an open fourth wall, and a platform having slots configured to receive the one or more forks.

12 . The autonomous robot of claim 5 , wherein the second container is full of items individually weighing at least 20 pounds.

13 . The autonomous robot of claim 5 , wherein the one or more computer processors are further configured to execute the computer-executable instructions to:

coordinate transport of the first container with a fleet of autonomous robots.

14 . A method for transporting bulky items by an autonomous robot, the method comprising:

determining, by a controller, that a first container is empty;

transporting the first container to a pick docking station;

retrieving a second container from an induct station, wherein the second container is full;

transporting the second container to a buffer area;

determining, by the controller, that the first container is full; and

transporting the first container to the buffer area.

15 . The method of claim 14 , wherein the second container is transported while the first container is being filled.

16 . The method of claim 14 , further comprising:

determining, by the controller, a time sensitivity metric associated with a fourth container; and

transporting the fourth container directly to the packing station while bypassing the buffer area based at least in part on the time sensitivity metric.

17 . The method of claim 14 , further comprising:

determining, by the controller, that a packing station has an opening; and

transporting the second container from the buffer area to the packing station.

18 . The method of claim 14 , further comprising:

retrieving a third container from the buffer area, wherein the third container is empty; and

transport the third container to the pick docking station.

19 . The method of claim 14 , further comprising:

coordinating, by the controller, transport of the first container with a fleet of autonomous robots.

20 . The method of claim 14 , wherein the first container is a cage comprising fencing along three walls, an open fourth wall, and a platform having slots configured to receive the one or more forks.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 11, 2022
From: SENGUPTA, MAINAK; STURGES, CJ
To: AMAZON TECHNOLOGIES, INC.
Reel/Frame 060475/0593 →
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