Patent ID: 7128682

Claim:
A planetary transmission comprising: an input shaft; an output shaft; a housing; a first planetary gearset having a first member, a second member, a third member, and a fourth member, said first and fourth members being continuously interconnected to rotate in unison; a second planetary gearset having a first member, a second member, a third member, and a fourth member, said first and fourth members being continuously interconnected to rotate in unison; a third planetary gearset having a first member, a second member, and a third member; a first mechanical clutch means for selectively interconnecting said input shaft with said first member or said second member, or both said first and said second members of said first planetary gearset; a second mechanical clutch means for selectively interconnecting said housing with said fourth member or said second member of said first planetary gearset; a third mechanical clutch means for selectively interconnecting said third member of said first planetary gearset with said first member or said second member of both said first member and said second member of said second planetary gearset; a fourth mechanical clutch means for selectively connecting said housing with said second member or said fourth member of said second planetary gearset; a fifth mechanical clutch means for selectively connecting said third member of said second planetary gearset with said first member, said second member, or said third member of said third planetary gearset; a sixth mechanical clutch means for selectively connecting said first member or said third member of said third planetary gearset with said housing; and a seventh mechanical clutch means for selectively connecting said second member or said third member of said third planetary gearset with said output shaft.