Patent ID: 7828690

Claim:
A multi-speed transmission comprising: an input member; an output member; first, second, third and fourth planetary gear sets each having first, second and third members; a first interconnecting member continuously connecting said first member of said first planetary gear set with one of said second and said third member of said second planetary gear set and with said third member of said third planetary gear set; a second interconnecting member continuously connecting said second member of said first planetary gear set with said first member of said second planetary gear set and with said first or said second member of said third planetary gear set if said first interconnecting member continuously connects said first member of said first planetary gear set with said second member of said second planetary gear set, or continuously connecting said second member of said first planetary gear set with said first or said second member of said second planetary gear set and with said first or said second member of said third planetary gear set if said first interconnecting member continuously connects said first member of said first planetary gear set with said third member of said second planetary gear set; and six torque-transmitting devices being engaged in combinations of three to establish at least ten forward speed ratios and at least one reverse speed ratio between said input member and said output member.