A Delaware federal judge on Tuesday dismissed a constitutional challenge to the forced sale of TransPerfect Global Inc., dealing another blow to CEO Philip R. Shawe's campaign to reverse the Chancery Court rulings that put the profitable translation-services company on the auction block.

The ruling, handed down by U.S. District Judge Gregory M. Sleet of the District of Delaware, removed one of the last remaining hurdles to the firm's sale, and it was the latest example of a federal court's reluctance to overturn key state court decisions in the contentious case.

In a 14-page opinion, Sleet declined to address Shawe's claims that the court-ordered sale was an unconstitutional taking of private property, saying that the argument was invalid under the Rooker-Feldman doctrine, which bars federal district courts from hearing cases aimed at effectively appealing state-court rulings.