The Eagles made a splash in the opening hours of free agency Tuesday night by signing five unrestricted free agents within the first 4½ hours of the open signing period.

None of them are huge names, but they’re interesting names -- former Texans tight end James Casey, former 49ers defensive tackle Isaac Sopoaga, former Rams cornerback Bradley Fletcher, former Patriots safety Patrick Chung, former Panthers and Ravens linebacker Jason Phillips.

The Casey, Chung and Sopoaga deals are all for three years, and the Phillips and Fletcher contracts are for two years each.

Sopoaga, 31, started 80 games for the 49ers from 2005 through 2012 and gives the Eagles an experienced nose tackle as the Eagles presumably switch from a 4-3 front to a 3-4 front under new head coach Chip Kelly and defensive coordinator Billy Davis.

Sopoaga was originally a fourth-round pick out of Hawaii in 2005 and became a full-time starter with the Niners in 2008. He also played some fullback on occasion in San Francisco.

Interestingly, Sopoaga is able to throw a football over 70 yards, although he’s never thrown a pass in an NFL game.

Casey, 6-foot-3, 235 pounds, was originally a fifth-round pick of the Texans in 2009. After playing sparingly his first two years, he became a part-time starter in 2011 and caught 18 passes for 260 yards and a touchdown in seven starts in 2011 and then increased to 34 receptions for 330 yards and three TDs last year.

Kelly is known to want more tight ends than normal on the 53-man roster, and Casey has the type of speed Kelly likes. Although he’s only caught 66 passes in his career, he’s had at least one catch of 30 or more yards each year of his career, including a 62-yarder against the Saints in 2011 as part of a career-high 126 yards.