초록 ▼

A coffee brewer of the type having an outer fixed cylindrical tube and a fixed piston within the tube. A sliding cylinder slides in sealing contact between the outer cylinder and the piston. The sliding cylinder has a filter at the top thereof. A frame mounts the piston head and the outer cylindrica

A coffee brewer of the type having an outer fixed cylindrical tube and a fixed piston within the tube. A sliding cylinder slides in sealing contact between the outer cylinder and the piston. The sliding cylinder has a filter at the top thereof. A frame mounts the piston head and the outer cylindrical tube, and motor means are mounted on the frame with a pair of rotors rotatably mounted on the frame, one on either side of the outer cylindrical tube about a lateral axis at right angles to the axial axis of the outer and sliding cylindrical tubes. Each rotor includes an arcuate segment with gear teeth on the periphery thereof. Gear means connect the motor to the rotors for rotating the rotors, and a cam connector connects the sliding cylinder to the rotors for sliding movement of the sliding cylindrical tube during the brewing cycle. A spring mounted sweeper blade extends between a pair of arms, one on either side of the outer cylindrical tube, for sweeping the top of the sliding cylindrical tube and, therefore, the filter. A pour spout is mounted on the frame and is connected to a flexible tube communicating with the sliding cylinder for pouring the coffee from the interior of the sliding cylinder when the appropriate position is reached in the brewing cycle.

대표청구항 ▼

A brewer comprising a frame, a first upright cylindrical tube mounted to the frame and having an upper portion with a smooth inner surface and an open top, a second cylindrical tube slidable within the first cylindrical tube in a reciprocating travel cycle along an axial axis of the first and second

A brewer comprising a frame, a first upright cylindrical tube mounted to the frame and having an upper portion with a smooth inner surface and an open top, a second cylindrical tube slidable within the first cylindrical tube in a reciprocating travel cycle along an axial axis of the first and second cylindrical tubes, the second cylindrical tube including a filter means at the top thereof, gasket means provided between the first and second cylindrical tubes to ensure sealing contact between the sliding first and second tubes, the uppermost position of the second cylindrical tube in the travel cycle occurring when the filter means is flush with the top of the first cylindrical tube, a piston head mounted to the frame within the second cylindrical tube and gasket means provided between the second cylindrical tube and the piston head to ensure sealing contact therebetween, a pour spout outlet means in the second cylindrical tube located below the top of the piston head for most of the travel of the second cylindrical tube but above the piston head in the uppermost segment of the travel cycle of the second cylindrical tube, the improvement comprising motor means mounted on the frame, a pair of rotors rotatably mounted on the frame, one on either diametrically opposite positions of the first and second cylindrical tubes about a lateral axis at right angles to the axial axis of the first and second cylindrical tubes, each rotor including an arcuate segment with gear teeth on the periphery of the arcuate segment, gear means connecting the motor means to the rotors for rotating the rotors, and means connecting the rotors to the second cylindrical tube for effecting the reciprocating vertical travel cycle to the second cylindrical tube.