A recovery device (100, 200) for persons positioned above the ground, and a system (400) and method (300) including the recovery device (100, 200). The recovery device (100, 200) includes an expandable base portion (110, 210), and a person receiving portion (120, 220) configured to receive a person when the expandable base portion (110, 210) is expanded.

Damage mitigating apparatus comprises totally extending hollow tubes, and projectiles attached to undeployed fabric and formed with a tube-receivable rod. Pressurized gas which is generated upon triggering of a gas generator flows through the tubes to propel the projection and to cause performance of at damage mitigating operation. In one embodiment, a damage mitigating aerial vehicle comprises sensors for detecting flight related characteristics and a communication unit for commanding activation of parachute deploying apparatus and of a lift generator deactivation unit following determination of a flight failure. In one embodiment, an aerial vehicle transmits a critical failure alarm signal to an unmanned aircraft traffic management system (UTM) station following detection of to failure, and the UTM elation transmits a warning signal to neighboring aerial vehicles that are predicted to be in a vicinity of the descent path of the failed aerial vehicle to avoid collision with the failed aerial vehicle.

A high rise building escape drone is shown and described. The high rise building escape drone includes of a frame. The frame has a spine secured to an upper housing. The upper housing secures a motor and a CPU operably connected to the motor. The motor is rotatably coupled to at least one propeller. A seat is secured to the spine below the upper housing. A control panel is secured to the seat. The control panel is operably coupled to the CPU and is capable to control the drone. A plurality of feet are secured to a bottom of the spine such that the feet support the drone.

A high rise building escape drone is shown and described. The high rise building escape drone includes of a frame. The frame has a spine secured to an upper housing. The upper housing secures a motor and a CPU operably connected to the motor. The motor is rotatably coupled to at least one propeller. A seat is secured to the spine below the upper housing. A control panel is secured to the seat. The control panel is operably coupled to the CPU and is capable to control the drone. A plurality of feet are secured to a bottom of the spine such that the feet support the drone.

An airplane emergency escape drone is shown and described. The airplane emergency escape drone includes a housing. The housing is made from a planar base, a plurality of sidewalk rising from the base, and a planar top secured to the top of the sidewalls. A door is located within one of the plurality of sidewalk. A motor is secured to the exterior of the planar top. A propeller is rotatably secured to the motor. A plurality of feet is secured to the exterior of the planar base.

A patient transport apparatus operable by a user for transporting a patient along stairs. A seat section is coupled to a support structure. A track having a belt is attached to the support structure and is arranged for selective operation between: a retracted position, and a deployed position to engage stairs. A drive system with a motor is disposed in rotational communication with the belt to control movement along stairs in the deployed position. A user interface us arranged for engagement to selectively adjust operation of the drive system between: an active state for controlling movement of the belt with the motor, and an inactive state. A braking controller is configured to sense movement of the belt in the inactive state, and to control the motor to limit movement of the belt in the inactive state to effect corresponding limited movement of the patient transport apparatus along stairs.

An electro-pneumatic valve assembly includes a valve having a valve housing and a poppet and a solenoid valve having an actuator housing and a valve body. The valve housing has a wall that defines a valve inlet that is arranged to receive a fluid flow from a pressurized container and defines a valve outlet and a first port. The poppet is disposed within the valve housing and is movable between a first position and a second position. The actuator housing defines an opening. The valve body has a first wall that defines an inlet that is fluidly connected to the first port and a second wall that defines an outlet that is fluidly connected to the second port.

An electro-pneumatic valve assembly includes a valve having a valve housing and a poppet and a solenoid valve having an actuator housing and a valve body. The valve housing has a wall that defines a valve inlet that is arranged to receive a fluid flow from a pressurized container and defines a valve outlet and a first port. The poppet is disposed within the valve housing and is movable between a first position and a second position. The actuator housing defines an opening. The valve body has a first wall that defines an inlet that is fluidly connected to the first port and a second wall that defines an outlet that is fluidly connected to the second port.

An air purifier including an air filter, an air movement device configured to move air at least partially in an axial direction and through the filter, and a first exit path in fluid communication with the air movement device. The first exit path is configured such that at least part of the air moved by the air movement device exits the first exit path generally in the axial direction. The air purifier further includes a second exit path in fluid communication with the air movement device and configured such that at least part of the air moved by the air movement device exits the second exit path at an angle of between about 10 degrees and about 45 degrees relative to air exiting the first exit path.

The invention provides a well rescue device for rescuing a victim trapped in a well. The well rescue device includes a clamp assembly configured to provide support to a torso of the victim while moving the victim. Additionally, the well rescue device includes a seat assembly configured to provide seating support to the victim.