A funereal urn comprises a pot, a lid, and an inner tank assembly. The pot covers with the lid, and the inner tank assembly includes two or more circular semi-circular inner ash tanks. The circular semi-circular inner ash tanks are to combine to form the inner tank assembly with cylindrical shape, and capable to be contained by the space of the pot. The circular semi-circular inner ash tank comprises an inner spacer body, an inner lid and an inner seal ring. The inner spacer body has an ash container, and the inner lid has a flange. The inner spacer body covers with the inner lid, and the flange insert into the ash container. The inner seal ring is put around the flange and comprises a lip portion and a bulge portion. The lip portion is located between the inner lid and the inner spacer body, and the bulge portion is located between the flange and the ash container.一種骨灰罐包括一罐體、一蓋體,以及一內膽總成。蓋體罩蓋於罐體的開口,內膽總成包括有兩個以上的半圓形或扇形的骨罐內膽。半圓形或扇形的骨罐內膽相互配合組成內膽總成,具有與罐體容置空間相應的圓筒狀外形。半圓形或扇形的骨罐內膽包括內膽分隔體、內膽蓋體,以及氣密環體。內膽分隔體具有骨灰容置槽,內膽蓋體具有凸緣,當內膽蓋體蓋設於內膽分隔體時,凸緣進入骨灰容置槽內。氣密環體套設於凸緣,具有唇部與凸環部。唇部設置於內膽蓋體與內膽分隔體之間,凸環部設置於凸緣與骨灰容置槽之間。10‧‧‧罐體11‧‧‧開口12‧‧‧罐體容置空間20‧‧‧蓋體30‧‧‧內膽總成40‧‧‧半圓形或扇形的骨罐內膽50‧‧‧內膽分隔體51‧‧‧骨灰充填開口52‧‧‧骨灰容置槽60‧‧‧內膽蓋體70‧‧‧氣密環體
