# US 2019/0315264 A1 · Landing gear system, landing gear security system, and method of operating a landing gear system for a vehicle trailer > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0315264 A1 - Document ID: US20190315264A1 - Status: Published application - Kind: A1 - Application number: 16/462,382 - Filed: 2017-11-21 - Published: 2019-10-17 - Earliest claimed: 2016-11-21 - Assignees: Carrier Corporation - Applicants: Carrier Corporation - Inventors: Michael Swab - Web page: https://patentgrep.com/patent/US20190315264A1 ## CPC - B60P 3/20: Refrigerated goods vehicles (air treatment of goods space B60H; {air-conditioning means for freight cars, isothermic wagons B61D27/0027; superstructures for refrigerated goods vehicles B62D33/048}) - B60S 9/08: the screw axis being substantially vertical - B60H 1/00014: {for load cargos on load transporting vehicles} - B60S 9/04: mechanically - B60P: VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS (vehicles with special provisions for transporting patients or disabled persons, or their personal conveyances A61G3/00) - B60S: SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR - B60H: ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES ## Abstract A landing gear system (10) for a vehicle trailer having an HVAC/R system (14) is provided. The landing gear system includes a landing gear (20) configured to be raised and lowered to support the vehicle trailer, a motor (22) coupled to the landing gear and configured to raise and lower the landing gear, and a power source (24) operatively connected to the motor and configured for connection with the HVAC/R system. ## Claims ### Claim 1 A landing gear system for a vehicle trailer having an HVAC/R system, the landing gear system comprising: a landing gear configured to be raised and lowered to support the vehicle trailer; a motor coupled to the landing gear and configured to raise and lower the landing gear; and a power source operatively connected to the motor and configured for connection with the HVAC/R system. ### Claim 2 (depends on 1) The landing gear system of claim 1, wherein the motor is an electric motor. ### Claim 3 (depends on 2) The landing gear system of claim 2, wherein the power source is an electric battery electrically coupled to the electric motor. ### Claim 4 (depends on 1) The landing gear system of claim 1, further comprising a controller configured to send power from the power source to the motor. ### Claim 5 (depends on 4) The landing gear system of claim 4, wherein the controller includes a security module configured to limit control of at least one of the controller and the motor. ### Claim 6 (depends on 5) The landing gear system of claim 5, wherein at least two of the motor, the power source, and the controller are connected by a circuit such that disconnection of the circuit transmits an alert signal. ### Claim 7 (depends on 1) The landing gear system of claim 1, wherein the power source is configured to receive power from the HVAC/R system when a power level of the power source is below a threshold power level. ### Claim 8 A method of operating a landing gear system of a vehicle trailer having an HVAC/R system, the method comprising: providing a motor operatively coupled to a landing gear; and powering the landing gear with a power source configured for connection with the HVAC/R system. ### Claim 9 (depends on 8) The method of claim 8, further comprising controlling power from the power source to the motor with a controller. ### Claim 10 (depends on 9) The method of claim 9, further comprising: connecting at least two of the motor, the power source, and the controller with a circuit; and signaling an alert upon disconnection of the circuit. ### Claim 11 (depends on 8) The method of claim 8, further comprising: determining a power level of the power source; and transmitting power from the HVAC/R system to the power source when the power level is below a threshold power level. ### Claim 12 (depends on 8) The method of claim 8, wherein powering the landing gear with a power source includes electrically powering the landing gear with an electric battery. ### Claim 13 A landing gear security system for a vehicle trailer having an HVAC/R system, the landing gear security system comprising: a power source configured for connection to the HVAC/R system and to supply power to a motor operatively coupled to a landing gear; and a controller configured to control transmission of power from the power source to the motor and having a security module configured to limit access to at least one of the controller and the motor. ### Claim 14 (depends on 13) The landing gear security system of claim 13, wherein the controller is configured to detect disconnection between the motor and the controller. ### Claim 15 (depends on 14) The landing gear security system of claim 14, wherein a current is transmitted between the controller and the motor to detect disconnection between the controller and the motor. ### Claim 16 (depends on 14) The landing gear security system of claim 14, wherein the controller transmits an alert signal upon disconnection. ### Claim 17 (depends on 13) The landing gear security system of claim 13, wherein a binary code is transmitted to the controller to limit access to at least one of the controller and the motor. ### Claim 18 (depends on 13) The landing gear security system of claim 13, further comprising a user interface configured to receive input for access to the controller.