Navigation bar: Search Patents > Utility Patent 835,245 > Drawings: Page 1/9 Page 2/9 Page 3/9 Page 4/9 Page 5/9 Page 6/9 Page 7/9 Page 8/9 Page 9/9 Text:  7 pages Page 1/7 Page 2/7 Page 3/7 Page 4/7 Page 5/7 Page 6/7 Page 7/7