Richard was assigned to AHL Lehigh Valley on Saturday, Adam Kimelman of NHL.com reports.
Richard recorded two assists, including one in the power play, in Saturday's 5-2 win over the Sabres.
Richard scored a goal on two shots, added an assist and went plus-2 in Thursday's 5-4 overtime win over the Senators.
Richard scored a goal on two shots and added two hits in Saturday's 4-3 shootout loss to the Panthers.
Richard was summoned by the Flyers on Wednesday.
Richard was placed on waivers by the Flyers on Friday, Elliotte Friedman of Sportsnet reports.
Richard signed a one-year, two-way contract with Philadelphia on Tuesday.
Richard was sent to AHL Providence on Thursday.
Richard was summoned from AHL Providence on Saturday.
Richard was recalled from AHL Providence on Monday.