Having helped the South American nation win gold in the Mixed Pairs - BC4 event earlier in the Games, the duo of Dirceu Jose Pinto and Eliseu dos Santos both picked up medals in the Mixed Individual - BC4 competition on the final day.
Having beaten Dos Santos in the semi-finals, Pinto then came out on top in a thrilling final against Zheng Yuansen of China to claim his second gold medal of London 2012.
In a close encounter, Pinto led 1-0 and then 3-2 but each time his Chinese opponent fought back only for the Brazilian to hold his nerve to win the tie-break.
Dos Santos, meanwhile, took bronze after a 5-3 victory over Stephen McGuire of Great Britain and is now looking forward to meeting the newest member of his family.
He said: 'I'm happy that I'm going to have some time to spend with my son who has just been born and I haven't even seen him yet. So for me this will be an amazing time to just relax and be with him.'
That gold medal had followed on from the one secured by Maciel Sousa Santos of Brazil earlier on the final afternoon when beating China's Yan Zhiqiang 8-0 in the final of the Mixed Individual - BC2, with bronze going to Jeong So-Yeong of the Republic of Korea.
I think it's very good for the Brazil team and Boccia that we have these athletes. They are my role models and I hope they can serve as role models for other Boccia players in the world.Maciel Sousa Santos
On the success of the Brazil Boccia athletes, Sousa Santos said: 'I think it's very good for the Brazil team and Boccia that we have these athletes. I look up to Dirceu Jose (Pinto) and Eliseu (dos Santos). They are my role models and I hope they can serve as role models for other Boccia players in the world.'
Jose Carlos Chagas de Oliveira failed to make it four medals on the final day for Brazil after he lost 6-4 to Norway's Roger Aandalen in the bronze-medal match of the Mixed Individual - BC1.
Pattaya Tadtong took the gold, his second of the Games after winning the Mixed Team - BC1-2 final with Thailand, as he got the better of Great Britain's David Smith 7-0.
In an all-Korean final in the Mixed Individual - BC3 event, it was 21-year-old Choi Ye-Jin who got the better of Jeong Ho-Won 4-3 to win gold.
The Republic of Korea failed in their quest to win all three medals in this classification as bronze went to Portugal's Jose Macedo after he beat Kim Han-Soo 3-2 - with Korea finishing third in the medal table, with one gold, one silver and one bronze.
Thailand finished second in the overall standings behind Brazil, with those two victories for Tadtong and the Mixed - BC1-2 team, while the other Boccia gold went to Greece, with the team of Maria-Eleni Kordali, Nikolaos Pananos and Grigorios Polychronidis having taken the Mixed Pairs - BC3 title on Day 6.