Company Name Rockwell Engineering and Equipment Co. Address 2913 El Camino Real #337 Tustin, CA 97470 Telephone 714-505-9700 Fax 714-505-9800 Contact Brad Rockwell Email brad@rockwellengineering.com Description Vaughan Co., Inc. is the first and only company in the world entirely devoted to the manufacture of the chopper pump. This chopper pump was originally invented by Jim Vaughan almost 50 years ago for dairy manure handling in the Chehalis Valley of Washington State. Now, with 32 patents and over 20,000 units successfully installed worldwide, Vaughan Chopper Pumps are utilized by all industries worldwide to handle the most difficult solids pumping applications. Booth # 419, 421