Device for the extemporary preparation of beverages

Claim 1

A device to carry out extemporary preparation of beverages with a liquid in doses, which passes through a glass-like capsule containing a charge to be diluted with the solvent, said capsule having an upper opening, a removable lower hollow extension and a thin covering plate for said opening, the device comprising: a first station to receive said capsule and to shear said extension thereof, including a capsule arrival chute; a second, beverage delivery station, including a seat for a beverage container and a unit which can be lowered to perforate at least one portion of said capsule and to cause a nozzle for the solvent to penetrate thereinto; a conveying collet having two diverging arms, angularly movable between said first and said second stations, and forming with said arms in a closed position an annular supporting seat for said capsule; a removable shearing unit including a blade to shear said capsule extension and an upper projection which can be removed into a retaining position of said capsule in said seat; collet movement means between said first and said second stations; means for temporarily diverging said collet in its return stroke from said second into said first station, for abandoning said capsule when exhausted; and means for checking the several operations in a desired sequence; further comprising an ejecting projection on each of said collet arms, with a tooth facing its own arm and acting on an edge of said capsule to pick it out from a semi-seat formed by the other arm.

Claim 2

A device to carry out extemporary preparation of beverages with a liquid in doses, which passes through a glass-like capsule containing a charge to be diluted with the solvent, said capsule having an upper opening, a removable lower hollow extension and a thin covering plate for said opening, the device comprising: a first station to receive said capsule and to shear said extension thereof, including a capsule arrival chute; a second, beverage delivery station, including a seat for a beverage container and a unit which can be lowered to perforate at least one portion of said capsule and to cause a nozzle for the solvent to penetrate thereinto; a conveying collet having two diverging arms, angularly movable between said first and said second stations, and forming with said arms in a closed position an annular supporting seat for said capsule; a removable shearing unit including a blade to shear said capsule extension and an upper projection which can be removed into a retaining position of said capsule in said seat; collet movement means between said first and said second stations; means for temporarily diverging said collet in its return stroke from said second into said first station, for abandoning said capsule when exhausted; and means for checking the several operations in a desired sequence; further comprising an ejecting projection on each of said collet arms, with a tooth facing its own arm and acting on an edge of said capsule to pick it out from a semi-seat formed by the other arm.

Claim 5

A device to carry out extemporary preparation of beverages with a liquid in doses, which passes through a glass-like capsule containing a charge to be diluted with the solvent, said capsule having an upper opening, a removable lower hollow extension and a thin covering plate for said opening, the device comprising: a first station to receive said capsule and to shear said extension thereof, including a capsule arrival chute; a second, beverage delivery station, including a seat for a beverage container and a unit which can be lowered to perforate at least one portion of said capsule and to cause a nozzle for the solvent to penetrate thereinto; a conveying collet having two diverging arms, angularly movable between said first and said second stations, and forming with said arms in a closed position an annular supporting seat for said capsule; a removable shearing unit including a blade to shear said capsule extension and an upper projection which can be moved into a retaining position of said capsule in said seat; collet movement means between said first and said second stations; means for temporarily diverging said collet in its return stroke from said second into said first station, for abandoning said capsule when exhausted; and means for checking the several operations in a desired sequence; spring-biased means engaged between said collet arms to stress them resiliently into the closed position; cam means acting on one of said arms to move one of said collet arms from said first to said second station, against an opposing resilient action; stop means causing the temporary diverging of said collet during the return stroke; wherein said stop means is borne by a rocking member, an extension being provided on one of said collet arms to interfere with said stop means and retain said one arm; said other arm being adapted, when reaching said first station, to determine the movement of said rocking member until it neutralizes the retaining effect by said stop means on said first arm.

Claim 6

A device to carry out extemporary preparation of beverages with a liquid in doses, which passes through a glass-like capsule containing a charge to be diluted with the solvent, said capsule having an upper opening, a removable lower hollow extension and a thin covering plate for said opening, the device comprising: a first station to receive said capsule and to shear said extension thereof, including a capsule arrival chute; a second, beverage delivery station, including a seat for a beverage container and a unit which can be lowered to perforate at least one portion of said capsule and to cause a nozzle for the solvent to penetrate thereinto; a conveying collet having two diverging arms, angularly movable between said first and said second stations, and forming with said arms in a closed position an annular supporting seat for said capsule; a removable shearing unit including a blade to shear said capsule extension and an upper projection which can be moved into a retaining position of said capsule in said seat; collet movement means between said first and said second stations; means for temporarily diverging said collet in its return stroke from said second into said first station, for abandoning said capsule when exhausted; and means for checking the several operations in a desired sequence; spring-biased means engaged between said collet arms to stress them resiliently into the closed position; cam means acting on one of said arms to move one of said collet arms from said first to said second station, against an opposing resilient action; stop means causing the temporary diverging of said collet during the return stroke; wherein said stop means is borne by a rocking member, an extension being provided on one of said collet arms to interfere with said stop means and retain said one arm; said other arm being adapted, when reaching said first station, to determine the movement of said rocking member until it neutralizes the retaining effect by said stop means on said first arm.