Automated robotic bedbug eradication device for mattresses

Patent metadata

Field	Value
Publication number	US-12550879-B2
Application number	US-202418956036-A
Country	US
Kind code	B2
Filing date	Nov 22, 2024
Priority date	Nov 23, 2023
Publication date	Feb 17, 2026
Grant date	Feb 17, 2026

Abstract

An automated dry-heating bedbug eradication device for pest eradication is provided herewith. By the use of a specifically fabricated graphene-coated copper heating film, the dry-heating device of the present invention can readily achieve a temperature that is higher than the well-established temperature of 45° C., which is proven lethal to all life stages of bedbugs, and also effective in ant eradication. The device is carefully designed to achieve high portability and maneuverability, and is customizable to accommodate the needs to sanitize mattresses of different sizes in different settings, ranging from home use to commercial hotel or hostel uses. The device of the present invention is also equipped with wireless connectability to mobile applications, and infrared sensor and PID systems for remote real-time monitoring and control.

First claim

The invention claimed is:

1 . A portable, remote-controllable dry-heating infestation control device for bedbug eradication on mattresses, comprising:
a steering chassis equipped with multiple self-cleaning wheels or tracks; a dry-heating compartment mounted with a printed circuit board (PCB); a servo motor-equipped automatic elevation system connected to the dry-heating compartment; an automatic control and feedback monitoring system connected to the dry-heating compartment; a circuit board housing; and a detachable handle; wherein each of the multiple self-cleaning wheels or tracks is coated with a superhydrophobic material; and wherein the dry-heating component comprises a fan unit, a graphene-coated copper heater film and a servo motor-equipped automatic elevation system.

2 . The device of claim 1 , wherein the graphene-coated copper heater film is fabricated by coating a copper film on a polyimide substrate using physical vapor deposition, and subjecting to laser scribing for patterning.

3 . The device of claim 1 , wherein the graphene-coated copper heater film has a thickness of less than 160 μm.

4 . The device of claim 1 , wherein the superhydrophobic material is selected from polytetrafluoroethylene, polydimethylsiloxane, wax-based coating, laser-induced aluminum or laser-induced graphene.

5 . The device of claim 4 , wherein the sliding angle of the superhydrophobic material is less than 6°.

6 . The device of claim 1 , wherein the dry-heating compartment has a maximum output of 330° C.

7 . The device of claim 1 , wherein the automatic control and feedback monitoring system comprises an infrared sensor and a Proportional-Integral-Derivative (PID) control system.

8 . The device of claim 1 , further comprising a wireless Internet-of-Things (IoT) module connectable to a mobile application for remote control and real-time monitoring.

9 . A method of pest eradication on a mattress comprising: Utilizing the device of claim 1 to eradicate a pest; wherein the pest comprises at least bedbug eggs, bedbug nymphs, bedbug adults and ants.

10 . The method of claim 9 , wherein the mattress has a 0.5 mm thickness, and a mortality rate of bedbug eggs, bedbug nymphs, bedbug adults and ants in said mattress is at least 99% under a heating temperature of 60° C. at an operational period of 30 seconds.

Assignees

• Univ Hong Kong Science & Tech

Inventors

• Li Guijun
• Xu Yang
• Lee Kong Wai
• Zhong Haosong
• Kim Minseong
• Lin Jing
• Poon Wing Yan
• Yuan Qiaoyaxiao
• Liu Huan
• Chan Yee Him Timothy

Classifications

• B25J11/0085

  Cleaning · CPC title

• B25J5/007

  mounted on wheels · CPC title

• A01M1/2094 Primary

  killing insects by using temperature, e.g. flames, steam or freezing (A01M1/22 takes precedence) · CPC title

• A01M3/007 Primary

  Manual heating or burning apparatus, e.g. using steam, heated elements or waves (flame-throwers A01M15/00) · CPC title