A - Human Necessities – 44 – C
Patent
A - Human Necessities
44
C
A44C 21/00 (2006.01) B21D 39/03 (2006.01) B23P 11/00 (2006.01) B23P 11/02 (2006.01) B44B 5/00 (2006.01)
Patent
CA 2164495
A bi-metallic coin or blank is produced from a disc-shaped core and an annular outer component. The two components are bonded to each other by pressure flow of the material of one component toward the other component. According to the invention, the locking of the two components is secured by bevels at its central opening. The bevels also facilitate the fast speed placement of the core into the ring during the minting operation. The fast speed placement of the core in the outer component is further aided by an outwardly rounded configuration of the periphery of the disc-shaped core. The invention is particularly, but not exclusively, useful in the production of thincoins having the thickness range of about 1.0 mm to about 1.5 mm, where the locking of the two components is difficult to achieve with known methods.
Dohadwala Shabbir Hussain
Truong Hieu Cong
Dohadwala Shabbir Hussain
Gowling Lafleur Henderson Llp
Truong Hieu Cong
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