Patent ID: 7235756

Claim:
A mail sorting and sequencing system ( 1 ), comprising at least one DPP unit ( 2 ) for forming groups of mail items and for sorting and sequencing mail items ( 7 ) of the following types of mail: a first type of mail ( 7 a ) comprising letters and postcards (REGULAR MAIL); a second type of mail comprising FLAT mail items ( 7 b ) of dimensions larger than the corresponding dimensions of letters and postcards; and a third type of mail comprising OVERSIZED mail items ( 7 c ) whose characteristic dimensions make automated processing of the items difficult; each DPP unit ( 2 ) comprising, a conveyor system ( 9 ) comprising a number of trucks ( 11 ) travelling along a path ( 13 ); at least one feed unit ( 15 a , 15 b , 15 c ) communicating with the conveyor system ( 9 ), said feed unit ( 15 a , 15 b , 15 c ) receiving mail items ( 7 ) of said first, second and third types of mail ( 7 ), and loading said types of mail ( 7 ) into the trucks ( 11 ); and at least one accumulating device ( 20 ) cooperating with said conveyor system ( 9 ) to receive said first, second, and third types of mail ( 7 ) released by the trucks ( 11 ).