Abstract: The present invention relates to an apparatus (10) for roasting coffee beans comprising : —a housing (4), —a roasting chamber (1) presenting a bottom opening (11) and a top opening (12), —a smoke and particles collector (6) configured to collect smoke and particles from the top opening (12) of the roasting chamber, —the roasting chamber (1) being removably mounted to the housing (4), the bottom opening (11) of the roasting chamber cooperating with a hot air outlet hole (41) of the housing and the top opening (12) of the roasting chamber cooperating with the smoke and particles collector (6) when the roasting chamber is mounted to the housing, —a chamber locking assembly (5) for locking the roasting chamber to the housing in a removable manner, wherein said chamber locking assembly (5) comprises: a bottom device (51) for connecting the bottom opening (11) of the chamber to the hot air outlet hole (41) of the housing, said bottom device being configured to receive the bottom (1a) of the chamber and to hold the

Abstract: The invention relates to a head assembly for a beverage preparation device for preparing a nutritional composition upon interaction of ingredients provided in a capsule with liquid supplied to the capsule, the assembly comprising capsule opening means (10) which are adapted to interact with an injection face of the capsule, the opening means comprising a liquid injection means (1) for injection of liquid into the capsule and a gas injection means (2) for injecting of gas into the capsule, activation means (20) designed for interacting with the opening means and for moving the liquid injection means and the gas injection means with respect to the injection face of the capsule. The head assembly also comprises a drive unit (70) for driving the activation means (20) and the activation means comprises a driving gear (20b) adapted to be driven in rotational movement by the drive unit (70) for sequentially moving the liquid injection means (1) and gas injection means (2).

Abstract: The invention relates to a head assembly for a beverage preparation device for preparing a nutritional composition upon interaction of ingredients provided in a capsule with liquid supplied to the capsule, the assembly comprising capsule opening means (10) which are adapted to interact with an injection face of the capsule, the opening means comprising a liquid injection means (1) for injection of liquid into the capsule and a gas injection means (2) for injecting of gas into the capsule, activation means (20) designed for interacting with the opening means and for moving the liquid injection means and the gas injection means with respect to the injection face of the capsule. The head assembly also comprises a drive unit (70) for driving the activation means (20) and the activation means comprises a driving gear (20b) adapted to be driven in rotational movement by the drive unit (70) for sequentially moving the liquid injection means (1) and gas injection means (2).