Reserve tailback Jon Williams rushed for 140 yards and scored one touchdown and fullback Mike Meade ran for 97 yards and another score as top-ranked Penn State defeated West Virginia, 30-7, yesterday in University Park, Pa.

Leading, 10-7, at halftime, the Nittany Lions (6-0) broke open the game with three touchdowns in the last 19 minutes. One came on an 11-yard pass in the third quarter from Todd Blackledge to Kenny Jackson that was tipped by a West Virginia defender.

They scored twice more in the fourth quarter. on a one-yard run by Meade with 11:58 remaining and a 13-yard run by freshman Tony Mumford in the game's final minute, as the Nittany Lions defeated West Virginia for the 23rd straight time.

Williams, a sophomore, scored on a five-yard run in the first quarter. He was a late replacement for Curt Warner, the nation's third leading rusher, who sat out the game with a pulled hamstring incurred in practice this week.

Blackledge completed nine of 15 passes for 118 yards for Penn State, which held West Virginia to 38 yards on the ground and outgained the visitors, 459 yards to 264.

"They (the Nittany Lions) are definitely the No. 1 team in the nation," said West Virginia Coach Don Nehlen, whose team lost to No. 2 Pitt, 17-0, earlier this season. "They're big and strong and they keep coming at you.

"Our biggest problem was that we put no pressure on the quarterback," Nehlen said. "Blackledge had enough time to eat a cookie and then throw the football. You can't do that against Penn State and be successful."

The Mountaineers were led by quarterback Oliver Luck, who completed 24 of 39 passes for 226 yards and one touchdown, a 54-yard pass to flanker Rich Hollins in the second quarter.