Apparatus for making espresso coffee
First Claim
1. An apparatus for making espresso coffee comprising a support frame (2), a vertically mounted open-topped cylinder (3) mounted on the support frame, the frame and cylinder defining a space below the cylinder adapted to recieve a block of compressed ground coffee and below which a cup to receive the coffee may be inserted, means for locating adjacent the base of the cylinder a quantity of ground coffee, a piston adapted to fit in the cylinder, and an actuation means linked to the piston enabling the piston to be moved up and down in the cylinder by the actuation means, wherein associated with the piston is a one-way valve mechanism for enabling water to pass from above to below the head (22) of the piston as the piston is raised within the cylinder by the actuation means.
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Accused Products
Abstract
An apparatus for making espresso coffee is described. The apparatus comprises a support frame (2) upon which an open-topped cylinder (3) is vertically mounted. A pot containing a quantity of ground coffee may be attached to the base of the cylinder, and the frame (2) and cylinder (3) provide sufficient space to insert a cup or cups below the pot. A piston with a piston head (22) is adapted to fit in the cylinder (3) and a pair of levers (6, 7) pivoted to the frame and pivotally linked to the piston enable the piston head to move up and down in the cylinder (3) by actuation of the levers (6, 7). In use, hot water is poured into the cylinder (3) and downward pressure on the levers (6, 7) expels the hot water under pressure through the ground coffee and the freshly made coffee passes out of an outlet in the base of the pot and into a waiting cup.
19 Citations
11 Claims
- 1. An apparatus for making espresso coffee comprising a support frame (2), a vertically mounted open-topped cylinder (3) mounted on the support frame, the frame and cylinder defining a space below the cylinder adapted to recieve a block of compressed ground coffee and below which a cup to receive the coffee may be inserted, means for locating adjacent the base of the cylinder a quantity of ground coffee, a piston adapted to fit in the cylinder, and an actuation means linked to the piston enabling the piston to be moved up and down in the cylinder by the actuation means, wherein associated with the piston is a one-way valve mechanism for enabling water to pass from above to below the head (22) of the piston as the piston is raised within the cylinder by the actuation means.
Specification