Mr. Bob Riggs, age 76 of Conyers, died Friday, September 17, 2010.  He was preceded in death by his parents, Cecil and Edith Riggs and sister, Jean Van Deventer.  He is survived by his wife of 27 years, Linda Riggs; son and daughter-in-law, Jamie and April Long, Jackson, GA; daughters and sons-in-law, Cheryl and Chuck Hankins, Orlando, FL, Michelle McNab, Lakemont, GA, Brenda and Bob Kocher, Tampa, FL; sister and brother-in-law, Arlene and Lee Roberts, Oceanside, CA; 9 grandchildren; 10 great-grandchildren; several nieces and nephews; beloved Jack Russell Terriers, Rowdy, Buzz, and Sam.  Mr. Riggs was a beloved husband, father and grandfather.  He was a retired technical engineer for Cryovac & Grace Corporation and developed Riggs American Machine Company (RAMCO).  Funeral services will be held Monday, September 20, 2010 at 4 p.m. at Scot Ward's Harry White Chapel with Rev. Howard Greer officiating; interment will follow at Green Meadow Memorial Gardens.  Family will receive friends Sunday, September 19, 2010 from 6 until 8 p.m.  Contributions may be made to your local Humane Society.  Condolences may be submitted on-line at www.scotward.com.  Scot Ward Funeral Services - Harry White Chapel, 1299 Milstead Ave., Conyers, GA 30012, 770-483-7216.