CLEAR SPRING - Denny Long is hoping to turn on the television someday and see his Ridge Chair advertised on a commercial. He said he wouldn't even mind if it included a pasta maker or a miracle knife as a free gift. "Media Corp. will put the chair on television if we can find a manufacturer," Long said. "They could make between 15,000 and 20,000 chairs a month, it's been estimated." A lifelong hunter and fisherman, Long said he invented the chair because of close calls he has had in the past with regular chairs while outdoors. "I've tilted forward or wobbled when I was shooting, and the recoil can throw you if you aren't careful," Long said. About two years ago, Long, 48, of Clear Spring, decided to build a camp chair that would be portable, as well as adjustable for uneven terrain.