John David Grant

Title: John David Grant: Innovator in Aircraft Technology

Introduction

John David Grant is a notable inventor based in Rockford, IL (US). He has made significant contributions to the field of aircraft technology, holding a total of 2 patents. His innovative designs focus on enhancing the functionality and safety of aircraft systems.

Latest Patents

One of Grant's latest patents is the "Deployment mechanism for RAM air turbine." This invention is directed to a deployment apparatus for an extendable ram air turbine of an aircraft. The ram air turbine is movable from a stowed inoperable position within the aircraft to a deployed and extended operable position externally of and in an airstream of the aircraft. The deployment apparatus includes an ejection member secured at one end to the aircraft and pivotally coupled to a non-extendable portion of a strut assembly. The non-extendable strut portion is pivotally secured at one end to the aircraft and receives at its other end in a telescoping manner one end of an extendable strut portion, which has at its other end an air turbine driven power unit. An extendable strut portion control arrangement is responsive to a preset strut assembly deployed position and the presence of a predetermined power output level provided by the air turbine driven power unit to ensure that the extendable strut and air turbine are extended only upon deployment of the strut assembly and activation of the air driven power unit.

Another significant patent is the "Liquid volume measuring device." This device indicates the volume of liquid in a fuel tank or similar container. It includes a linear variable differential transformer (LVDT) mounted within the tank, which is divided into a liquid containing section and a gas containing section by a longitudinally movable piston. Pressure gas is provided to the gas containing section of the tank through a port in a tank wall, urging the piston to follow the liquid level in the tank. The LVDT has a fixed coil housing with a fixed electrical input and a rotatable core actuator. The core actuator is coupled for rotation in response to movement of the piston. Rotation of the actuator effects translational movement of the core within the coil, producing a variable electrical output in response to changes in liquid volume.

Career Highlights

John David Grant is currently associated with Sundstrand Corporation, where he applies his expertise in developing innovative aircraft technologies. His work has contributed to advancements in safety