Simplify the following text for a Grade 7 native English-speaking person.
Original: In mid-1982 , Walters and his girlfriend , Carol Van Deusen , purchased 45 eight-foot weather balloons and obtained helium tanks from California Toy Time Balloons .
Simplified: In 1982 , Walters and his girlfriend , Carol Van Deusen , bought 45 eight-foot weather balloons . They got helium tanks from California Toy Time Balloons .