Abstract: An airfield series circuit includes a transfer relay having first and second sides, and a primary regulator operatively coupled to an airfield series loop of an airfield at the first side of the transfer relay. A standby regulator is operatively coupled to the airfield series circuit at the second side of the transfer relay. The transfer relay is movable between a primary mode of operation whereby the first side of the transfer relay closed directing lighting power to the airfield series loop from the primary regulator and the second side of the transfer relay open isolating the standby regulator from the airfield series circuit, and a standby mode of operating whereby the second side of the transfer relay closed directing lighting power to the airfield series loop from the standby regulator and the first side of the transfer relay open isolating the primary regulator from the airfield series circuit.

Abstract: Disclosed is an airport light base including a light base container having an upper end with an inverted first flange having a first outer face, an opposing first inner face facing into the light base container, a continuous inwardly directed first edge bounding a first opening into the light base container, and ring segments affixed to the inner face of the first flange forming an inverted second flange under the first opening outboard of the first edge, the second flange for reception of an inset light fixture thereon and having a second outer face facing the first opening, an opposing second inner face facing into the light base container, and a continuous inwardly directed second edge bounding a second opening into the light base container, wherein the second opening is smaller than the first opening.

Abstract: A combination airport air and ground transportation marker and airport traffic way comprises broad, substantially coextensive first and second sheets of pliant material each having a perimeter edge formed with a fluid ballast bladder formed with a fluid inlet for permitting intake and outtake of fluid relative to the bladder for filling and relieving the bladder, and a relief vent for relieving pressure in the bladder during the filling of the bladder with fluid and the relieving of the bladder of fluid. The first sheet is splayed out onto an airport traffic way, and the second sheet is splayed out onto the airport traffic way overlying the first sheet of pliant material, whereby the first and second sheets cooperate forming a marker for the airport traffic way. A charge of fluid fills each of the bladders fluid ballasting the marker relative to the airport traffic way.

Abstract: Disclosed is an airport light base including a light base container having an upper end with an inverted first flange having a first outer face, an opposing first inner face facing into the light base container, a continuous inwardly directed first edge bounding a first opening into the light base container, and ring segments affixed to the inner face of the first flange forming an inverted second flange under the first opening outboard of the first edge, the second flange for reception of an inset light fixture thereon and having a second outer face facing the first opening, an opposing second inner face facing into the light base container, and a continuous inwardly directed second edge bounding a second opening into the light base container, wherein the second opening is smaller than the first opening.

Abstract: An airport light system is disclosed, which includes an airport guidance sign circuit, and an airport light installation coupled to the airport guidance sign circuit that includes a guidance sign component activated in an ON position of the airport guidance sign circuit and deactivated in an OFF position of the airport guidance sign circuit, a runway guard light component, a rechargeable battery coupled to the runway guard light, a battery charger for recharging the rechargeable battery, and the runway guard light component activated a) by the airport guidance sign circuit in the ON position of the airport guidance sign circuit, and b) by the rechargeable battery in the OFF position of the airport guidance sign circuit.

Abstract: Disclosed is an airport light base including a light base container having an upper end with an inverted first flange having a first outer face, an opposing first inner face facing into the light base container, a continuous inwardly directed first edge bounding a first opening into the light base container, and ring segments affixed to the inner face of the first flange forming an inverted second flange under the first opening outboard of the first edge, the second flange for reception of an inset light fixture thereon and having a second outer face facing the first opening, an opposing second inner face facing into the light base container, and a continuous inwardly directed second edge bounding a second opening into the light base container, wherein the second opening is smaller than the first opening.

Abstract: An airport light system is disclosed, which includes an airport guidance sign circuit, and an airport light installation coupled to the airport guidance sign circuit that includes a guidance sign component activated in an ON position of the airport guidance sign circuit and deactivated in an OFF position of the airport guidance sign circuit, a runway guard light component, a rechargeable battery coupled to the runway guard light, a battery charger for recharging the rechargeable battery, and the runway guard light component activated a) by the airport guidance sign circuit in the ON position of the airport guidance sign circuit, and b) by the rechargeable battery in the OFF position of the airport guidance sign circuit.

Abstract: An airport light base container includes a continuous sidewall having an upper extremity with a light fixture assembly affixed thereto and a lower extremity with a bottom plate affixed thereto, in which there is a space in the light base container between the light fixture assembly and the bottom plate. A non-conductive support disposed in the space and is supported by the bottom plate. The non-conductive support has a non-conductive support surface disposed at an elevated location relative to the bottom plate. An isolation transformer is disposed in the space and is positioned on the non-conductive support surface of the non-conductive support and is electrically coupled to the light fixture assembly. The non-conductive support conductively isolates the isolation transformer from the bottom plate and maintains the isolation transformer at an elevated location relative to the bottom plate.

Abstract: An airport light installation is disclosed, which includes an airport light support having a coupling, and an elongate column having a proximal end removably attached to the coupling, an opposing distal end, and a frangible area between the proximal end and the distal end. A light fixture is carried by the distal end of the elongate column.

Abstract: This invention relates to height adjustable extensions of in-ground containers for embedded container light supports in airport runways. The apparatus has a first and second telescoping tube, each having a wall terminating in a flange. The flange on its upper end is for the reception of a light fixture, and the flange at the bottom end has bolt holes registering with the flange on the upper end of the in-ground container. There are a plurality of tapped bores in the wall of the outer tube. Set screws in the tapped bores are adapted to bear on the inner tube. The method of extending the height of the lighting fixture container comprises these steps: providing the apparatus as described above, positioning the telescoping tubes at a required height position; tightening the set screws to temporarily preserve the height position; pouring cementitious material around the positioned tubes; and allowing the cementitious material to set to hold said tubes in place.