NOVELTY - The apparatus i.e. mini-patcher (10), has a self-propelled vehicle comprising an articulated patching boom assembly (621) that is mounted at a front end of the vehicle. The boom assembly is mounted to be independently movable in both a horizontal direction and a vertical direction and configured to selectively deploy patching material during a patching mode. A pair of driving devices i.e. electrically driven linear actuators, independently moves the boom assembly respectively in the horizontal and vertical directions. A battery pack is mounted on the vehicle for powering the driving devices.    USE - Patching apparatus e.g. patcher vehicle i.e. mini-patcher, for repairing potholes (all claimed) in roads and highways.    ADVANTAGE - The driving device automatically closes the aggregate tank lid and, automatically clamps the aggregate tank lid upon closure, so as to assure an air-tight seal responsive to the lid reaching the closed position. The apparatus enables an actuator mechanism for opening and closing control of an aggregate tank outlet opening while regulating the size of the opening to control rate of flow of aggregate. The utilization of electrically powered linear accelerators opening in tandem enables operation of the patcher vehicle using exclusively electric power during the patching mode, including movement of the patcher vehicle during the patching mode. The battery pack enables operation of the patcher vehicle using exclusively electric power during the patching mode while eliminating the emission of toxic pollutants from a patcher exhaust, thus reducing the impact of toxic emissions upon the patching personnel in the surrounding area. The patcher is compact and easy to operate.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following:    (1) a storage tank assembly for holding and conveying aggregate, comprising a storage tank    (2) a flow control assembly for controlling dispensing of an aggregate from an aggregate tank, comprising a base member.    DESCRIPTION OF DRAWING(S) - The drawing shows a side view of a patcher vehicle.    Patcher (10)    Cabin (12)    Pressurized, aggregate storage tank (14)    Emulsion storage tank (18)    Articulated patching boom assembly (621)