The Patriots worked out five players on Monday, including former tight end Jake Ballard and defensive end Justin Francis, who were both released by the team near the conclusion of training camp, according to a league source.
Ballard, however, who was originally claimed by the Patriots off waivers during the 2012 offseason, was signed by the Cardinals on Monday.
Meanwhile, Francis was waived/injured at the end of training camp and eventually released off of the injured reserve list. A 2012 undrafted free agent out of Rutgers, he landed on the Patriots' 53-man roster as a rotational reserve defensive end and special-teams player.
Wood went undrafted in 2013 after a productive career with Notre Dame, signing with the Texans as a free agent. He was recently released after violating team rules during a road trip in Kansas City. The violation reportedly involved the use of marijuana.
Orton has spent time with both the Bengals and Broncos, who released him on Aug. 26. Originally an undrafted free agent in 2009, Orton is 6-foot-3 and 205 pounds.
Dowtin also was an undrafted free agent, coming out of North Alabama in 2012. He has spent time with the Jets, Eagles and most recently the Bills. In five games for Buffalo this season, he recorded six tackles.