IP Library Granted Patent US 11,618,364
Granted Patent B1
US 11,618,364 · App. 16/708,324 · Granted Apr 4, 2023

Systems and methods for empty container removal

Inventors: Raashid Mohammed (Lynnwood, WA); Majid Abdul (Bellevue, WA); Srinivas Nallapati (Maple Valley, WA); Daniel Ruffatto (Des Moines, WA); Hunter D. HeLal (Seattle, WA)
Assignee: Amazon Technologies, Inc.
B60P1/56B62B3/002B62B5/06B62B2202/12B62B2203/70B62B2207/00B62B2301/044
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Quick Facts
Patent No.
US 11,618,364
App. No.
16/708,324
Granted
Apr 4, 2023
Kind
B1
Abstract

Systems, methods, and apparatuses are disclosed for empty container removal. In one embodiment, an example method for removing empty containers may include opening a first gate, pushing a cart past the first gate, the cart comprising a handle and a trapdoor, where the cart comprises the empty containers, sliding the handle of the cart in a lateral direction from a default position to an extended position, opening a second gate, pushing the cart past the second gate using the handle, and actuating the trapdoor from a closed position to an open position, where actuating the trapdoor causes the empty containers to fall down a chute.

Claims (53)

1. An empty container removal system comprising:

a rollable cart comprising tapered sidewalls, a trapdoor, and a handle configured to slide along a frame of the rollable cart in a lateral direction, wherein the rollable cart is configured to transport empty containers;

a gate system comprising a first gate, a second gate, a trapdoor actuation mechanism, and fencing that forms a closed area between the first gate and the second gate, wherein the first gate is a swinging gate, and the second gate is a sliding gate;

an unlock button that unlocks the first gate and the second gate; and

a chute disposed adjacent to the second gate, the chute leading to a conveyor belt;

wherein the trapdoor actuation mechanism is configured to release the trapdoor and cause the empty containers to fall down the chute.

2. The empty container removal system of claim 1 , wherein the cart further comprises at least one transparent sidewall, and rear caster wheels that are offset from a rear edge of the frame of the rollable cart.

3. The empty container removal system of claim 1 , wherein the fencing comprises a gap through which the handle of the cart is accessible, and wherein the gate system further comprises a raised wedge configured to return the trapdoor to a closed position.

4. A method for removing empty containers comprising:

opening a first gate;

pushing a cart past the first gate, the cart comprising a handle and a trapdoor, wherein the cart comprises the empty containers;

sliding the handle of the cart in a lateral direction from a default position to an extended position;

closing the first gate;

pushing an unlock button after closing the first gate and before opening a second gate;

opening the second gate;

pushing the cart past the second gate using the handle; and

actuating the trapdoor from a closed position to an open position, wherein actuating the trapdoor causes the empty containers to fall down a chute.

5. The method of claim 4 , further comprising:

loading the empty containers into the cart; and

pushing the cart to the first gate.

6. The method of claim 4 , further comprising:

pulling the cart past the second gate using the handle;

sliding the handle from the extended position to the default position;

closing the second gate;

opening the first gate; and

pulling the cart past the first gate.

7. The method of claim 6 , further comprising:

pulling the cart over a raised wedge positioned between the first gate and the second gate, wherein the raised wedge causes the trapdoor to return to the closed position.

8. The method of claim 6 , further comprising:

pushing an unlock button after closing the second gate and before opening the first gate.

9. The method of claim 4 , wherein opening the first gate comprises swinging open the first gate, and wherein opening the second gate comprises sliding open the second gate.

10. The method of claim 4 , wherein an area between the first gate and the second gate in a fenced environment.

11. The method of claim 4 , wherein the cart comprises caster wheels offset from a rear edge of a frame of the cart to facilitate opening of the trapdoor.

12. The method of claim 4 , wherein the handle of the cart is a telescoping handle.

13. A method for removing empty containers from a cart comprising:

loading the cart with the empty containers, the cart comprising a handle and a trapdoor;

moving the cart to a first gate;

opening the first gate;

pushing the cart past the first gate;

closing the first gate;

opening a second gate;

pushing the cart past the second gate;

actuating the trapdoor from a closed position to an open position, wherein actuating the trapdoor causes the empty containers to fall down a chute;

pulling the cart past the second gate;

closing the second gate;

opening the first gate; and

pulling the cart past the first gate.

14. The method of claim 13 , further comprising:

sliding the handle of the cart in a lateral direction from a default position to an extended position.

15. The method of claim 13 , further comprising:

pushing an unlock button after closing the first gate and before opening the second gate.

16. The method of claim 13 , further comprising:

pulling the cart over a raised wedge positioned between the first gate and the second gate, wherein the raised wedge causes the trapdoor to return to the closed position.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 9, 2019
From: MOHAMMED, RAASHID; ABDUL, MAJID; NALLAPATI, SRINIVAS; RUFFATTO, DANIEL; HELAL, HUNTER D.
To: AMAZON TECHNOLOGIES, INC.
Reel/Frame 051222/0856 →
Cited By (3)
US 12,570,469 US 12,709,475 US 12,735,256