Abstract: Apparatus for properly orienting a windshield crack repair resin injector over a crack and guiding the movable position of the injector along an elongated crooked path of the crack. The apparatus is secured to the windshield by several suction cups and includes a bridge structure for supporting the apparatus above and along the crack. The guiding apparatus enables the injector to move in any direction relative to the bridge structure and parallel to the windshield to follow a long crooked crack path by providing a guiding mechanism having a combination of close fitting pivoting and sliding interconnections of several connecting members between the bridge and the injector. A preferred embodiment has a single-track rail above and along the crack with a wheeled carriage movable on the rail and supporting an arm swingable parallel to the windshield and carrying an injector at its free end. A resin-dispensing end of the injector is spring biased into engagement with the windshield.

Abstract: Portable self-contained apparatus for repairing a glass windshield by filling a damaged area with a repair material. An injector nozzle having a reservoir for holding an uncured liquid repair material is sealed over the damaged area of the windshield by vacuum cups. The reservoir is automatically supplied with timed alternating vacuum and positive precision controlled pressures from a fluid pressure device controlled by preprogrammed computer circuitry which is responsive to conditions of timing controls and of sensor controls for measuring and regulating the amounts and durations of the vacuum and positive pressures applied to the reservoir.