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05/18/11 10:17 PM

#433 RE: Thesys #432

REG TECHNOLOGIES INC. AND REGI U.S., INC. RELEASE SECOND PROTOTYPE RADMAX™ ASSEMBLY FABRICATION PROGRESS REPORT

(by company e-mail alert but here is a link)

http://ih.advfn.com/p.php?pid=nmona&article=47732302&symbol=RGUS

For Immediate Release: May 18, 2011. Vancouver, BC – REGI U.S., Inc. (OTC BB: RGUS, Frankfurt Stock Exchange: RGJ) and Reg Technologies Inc. (TSX Venture Exchange: RRE.V, OTC BB: REGRF) are pleased to provide the second fabrication progress report for the prototype RadMax™ Diesel Engine.

We estimate that approximately one-third of all fabrication work is complete, resulting in us being ahead of schedule and under budget.

As of the date of this release, the fabrication progress is as follows:

•The Rotors have completed their first-pass rough turning process within .030-inch of final. As of this report, the following Rotor fabrication operations have been completed: Outer surface, Neck, Driveshaft Slot, and Combustion Chamber.
•The Cams have completed their initial rough turning passes. The reason for the two-pass turning process is because the metal “moves” (stretches or deforms) after the machining process. To maintain our high-tolerance requirements, the two-passes are required.
•Fabrication of the 24 Vane-Actuator assemblies is complete. This includes completion of the Vanes, Connecting Tubes, Axles, Wheels, Wrist Pins, and integration with commercial wheel bearings.
Steps in detail of our work leading to RadMax™ test and certification were presented in our March 8, 2011 news release.

A picture of the rotor fabrication progress and new machining center is available on the Companies’ websites at www.regtech.com (Reg Technologies Inc.) and www.regiinc.com (REGI U.S., Inc.). The following are direct links:

Reg: http://www.regtech.com/images/rotor.jpg http://www.regtech.com/images/newmachineatpath.jpg

REGI: http://www.regiinc.com/images/rotor.jpg http://www.regiinc.com/images/newmachineatpath.jpg

Robert Grisar, Vice President of Engineering for REGI U.S., Inc. said, "The recent award of the RadMax™ patent by the USPTO has energized all of our fabrication subcontractors. The unique parts are evolving quickly. The close coordination and frequent reviews ensure all critical dimensions and tolerances are achieved, on schedule and within planned cost".