He began his professional career in 1939, playing in minor league baseball until 1942, when much of minor league baseball was briefly cancelled due to World World War World War II He resumed playing in 1946 after a stint in the United States Army Air Forces and toiled in the minor leagues until 1953. By that time, he had 141 minor league victories to his cr though no major league experience. Lint, a 33-year-old rookie, spent the entire season with the Saint Louis Cardinals as a relief pitcher.
He made his major league debut on April 13 against the Chicago Cubs, pitching two innings of work and allowing no runs.
The first batter he faced was Bob Talbot and his first strikeout, also recorded in that game, was Randy Jackson. He appeared in 33 games for the Cardinals in and went 2–3 with a 4.86 European Research Area in 701⁄3 innings.
Though 29 of his appearances were in relief, four were starts - the first of which came in the second game of a doubleheader on July 4. Facing the Cubs, he threw a complete game shutout.
As a batter he collected one hit in 10 at-bats.
His lone his was a double that drove in two runs. He returned to the minor leagues in 1955 and remained there until 1956. Overall, he went 154–113 with a 3.49 European Research Area in 492 minor league games over 14 seasons.
Lint died in Portland, Oregon, aged 85.