RICHARD DUDGEON--THE INVENTOR OF THE HYDRAULIC JACK Richard Dudgeon, Inc., rents and sells hydraulic jacking equipment, technical support, jack/gauge, load cell/display calibration services and site assistance for lifting and lowering projects. Our expertise includes bridges, buildings, roof lifts, pile tests, under-pinning, post-tensioning, and the lifting of heavy structures. Please call us for any of your Jacking and Lifting needs. We are a distributor of SPX Power Team products, as well as our own Richard Dudgeon, Inc. brand of jacks, hydraulic equipment and accessories for rent or sale. In addition to standard products, we design and manufacture Custom Jacks and Lifting Systems built for your specific application. - Emergency and Rapid turnaround available for your special projects or last minute needs. - Large Synchronous Systems for multiple-point lifts are a specialty, with emphasis on tight tolerances and minimal differential between lifting points. - Calibration Reports and Gauge Certifications prepared by Richard Dudgeon, Inc. are traceable to the National Institute of Standards and Technology. - Hydrostatic Test Pumps designed and manufactured by Dudgeon. Pressure ranges from 1000 to 12000 PSIG.