Patent 10543514 was granted and assigned to Federal Signal Corporation on January, 2020 by the United States Patent and Trademark Office.
A waterblasting system includes a fluid supply device, an air supply device, and a waterblasting tool. The air supply device contains a battery and an alternator in a single unit. The alternator is operated by compressed air from a separate air compressor and generates electric power, at least some of which is used to charge the battery.