# US 11,440,666 B2 · Intelligent aircraft seat belt system and method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,440,666 B2 - Document ID: US11440666B2 - Status: Granted - Kind: B2 - Application number: 16/889,988 - Filed: 2020-06-02 - Published: 2021-12-02 - Granted: 2022-09-13 - Earliest claimed: 2020-06-02 - Assignees: The Boeing Company - Applicants: The Boeing Company - Inventors: Sk Sahariyaz Zaman - Web page: https://patentgrep.com/patent/US11440666B2 ## CPC - B64D 11/062: {Belts or other passenger restraint means for passenger seats} - B64D 25/06: Harnessing - A44B 11/2526: {with an operating lever} - B64D 45/00: Aircraft indicators or protectors not otherwise provided for - G08B 21/22: responsive to presence or absence of persons - B60R 2022/4816: {for sensing locking of buckle} - B64D 2045/007: {Indicators or signs in the cabin, e.g. exit signs or seat numbering} - B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT - A44B: BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE (fastenings specially adapted for footwear A43C) - G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS - B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR ## Abstract Seat belts, seat belt assemblies, seat belt systems, and methods for incorporating the seat belts, seat belt assemblies, and seat belt assembly systems are disclosed, with the seat belt including a seat belt locking mechanism sensor that, in tandem with a seat belt thermal sensor provides confirmatory information as to a definitive locking condition or locking state of a seat belt. ## Claims ### Claim 1 An apparatus comprising: a vehicle seat belt assembly for a vehicle seat, said vehicle seat belt assembly configured to attach to a vehicle seat, said vehicle seat belt assembly comprising: a seat belt insertion end, said seat belt insertion end in communication with a first strap, said first strap configured to attach to a vehicle seat; a seat belt receiving end, said seat belt receiving end in communication with a second strap, said second strap configured to attach to the vehicle seat, said seat belt receiving end comprising: a seat belt receiving end first side; a seat belt receiving end second side that is pivotally connected to the seat belt receiving end first side, the seat belt receiving end first and second sides movable between an open orientation to release from the seat belt insertion end and a closed orientation to engage with the seat belt insertion end; a seat belt locking sensor; a thermal sensor mounted to the seat belt receiving end and positioned in proximity to each of the seat belt receiving end first and second sides in the closed orientation; and wherein the seat belt insertion end, the first strap, the seat belt receiving end, and the second strap are configured to form a vehicle seat belt; wherein the thermal sensor is positioned between the seat belt receiving end first and second sides to simultaneously sense a seat belt receiving end first side temperature and a seat belt receiving end second side temperature when the seat belt receiving end is in the closed orientation. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the thermal sensor senses a temperature difference between the seat belt receiving end first side temperature and the seat belt receiving end second side temperature. ### Claim 3 (depends on 2) The apparatus of claim 2, wherein the thermal sensor further comprises a thermal sensor transmitter, said thermal sensor transmitter configured to transmit a thermal sensor signal to a receiver, said thermal sensor signal configured to signal a temperature of at least one predetermined area of the seat belt receiving end. ### Claim 4 (depends on 1) The apparatus of claim 1, wherein, when the vehicle seat belt is worn by a user, the seat belt receiving end first side temperature is approximately equal to an ambient temperature and the seat belt receiving end second side temperature is approximately equal to a user torso temperature. ### Claim 5 (depends on 1) A passenger seat comprising the apparatus of claim 1. ### Claim 6 (depends on 1) A vehicle comprising the apparatus of claim 1. ### Claim 7 (depends on 1) An aircraft comprising the apparatus of claim 1. ### Claim 8 A system comprising: a vehicle seat belt comprising; a seat belt insertion end, said seat belt insertion end in communication with a first strap, said first strap configured to attach to a vehicle seat; a seat belt receiving end, said seat belt receiving end comprising a seat belt receiving end first side and a seat belt receiving end second side that are pivotally connected together and movable between an open orientation and a closed orientation, said seat belt receiving end in communication with a second strap, said second strap configured to attach to the vehicle seat, said seat belt receiving end dimensioned to receive the seat belt insertion end and engage with the seat belt insertion end in the closed orientation; a seat belt locking mechanism, said seat belt locking mechanism comprising a seat belt locking mechanism transmitter; and a seat belt thermal sensor oriented on at least one of the seat belt receiving end first side and the seat belt receiving end second side and positioned in proximity to each of the seat belt receiving end first and second sides in the closed orientation to sense a first temperature of the seat belt receiving end first side and a second temperature of the seat belt receiving end second side, said seat belt thermal sensor further comprising a seat belt thermal sensor transmitter; and at least one receiver, said at least one receiver configured to receive a signal from the seat belt locking mechanism transmitter and the seat belt thermal sensor transmitter. ### Claim 9 (depends on 8) The system of claim 8, wherein said at least one receiver comprises: a first receiver configured to receive a locking mechanism signal from the seat belt locking mechanism transmitter; and a second receiver configured to receive a thermal sensor signal from the seat belt thermal sensor transmitter. ### Claim 10 (depends on 8) The system of claim 8, wherein the seat belt thermal sensor senses a temperature difference between the seat belt receiving end first side temperature and the seat belt receiving end second side temperature. ### Claim 11 (depends on 8) The system of claim 8, wherein, when the vehicle seat belt is worn by a user, the vehicle seat belt receiving end first side temperature is approximately equal to an ambient temperature and the seat belt receiving end second side temperature is approximately equal to a torso temperature of the user. ### Claim 12 (depends on 8) The system of claim 8, wherein the seat belt thermal sensor comprises a seat belt thermal sensor transmitter, said seat belt thermal sensor transmitter configured to transmit a thermal sensor signal, said seat belt thermal sensor signal comprising the temperature of at least one predetermined area of the seat belt. ### Claim 13 (depends on 8) A passenger seat comprising the system of claim 8. ### Claim 14 (depends on 8) A vehicle comprising the system of claim 8. ### Claim 15 (depends on 8) An aircraft comprising the system of claim 8. ### Claim 16 (depends on 1) The apparatus of claim 1, wherein the seat belt receiving end comprises a bar that extends between a first face of the seat belt receiving end first side and a second face of the seat belt receiving end second side with the thermal sensor mounted on the bar. ### Claim 17 (depends on 16) The apparatus of claim 16, wherein the bar is connected to the seat belt receiving end second side, the bar being spaced away from the seat belt receiving end first side in the open orientation. ### Claim 18 A method comprising: providing a vehicle seat belt assembly, said seat belt assembly configured to attach to a vehicle seat, said vehicle seat belt assembly comprising: a seat belt insertion end, said seat belt insertion end in communication with a first strap; a seat belt receiving end, said seat belt receiving end in communication with a second strap, said seat belt receiving end comprising a seat belt receiving end first side and a seat belt receiving end second side, said seat belt receiving end dimensioned to receive the seat belt insertion end; a seat belt locking mechanism comprising: a seat belt locking mechanism transmitter; and a seat belt thermal sensor oriented on at least one of the seat belt receiving end first side and the seat belt receiving end second side, said seat belt thermal sensor positioned between the seat belt receiving end first and second sides to simultaneously sense a temperature of the seat belt receiving end first side and a temperature of said seat belt receiving end second side, said thermal sensor comprising a seat belt thermal sensor transmitter; and providing a receiver configured to receive a seat belt locking mechanism signal from the seat belt locking mechanism transmitter, and said receiver further configured to receive a thermal sensor signal from the seat belt thermal sensor transmitter. ### Claim 19 (depends on 18) The method of claim 18, further comprising: providing a seat belt locking mechanism signal receiver configured to receive the seat belt locking mechanism signal from the seat belt locking mechanism transmitter; and providing a thermal sensor signal receiver configured to receive the thermal sensor signal from the seat belt thermal sensor transmitter. ### Claim 20 (depends on 18) The method of claim 18, further comprising: transmitting the seat belt locking mechanism signal from the locking mechanism transmitter; receiving at the receiver the seat belt locking mechanism signal to confirm a locking condition of the vehicle seat belt assembly; transmitting the thermal sensor signal from the thermal sensor transmitter; receiving at the receiver the thermal sensor signal to confirm a thermal condition of the seat belt assembly; and wherein the receiver receiving both the seat belt locking mechanism signal and the thermal sensor signal confirms compliance with a mandatory seat belt command.