Foods and beverages: apparatus – Beverage – Infusors
Patent
1984-04-30
1986-04-01
Jenkins, Robert W.
Foods and beverages: apparatus
Beverage
Infusors
99302P, A47J 3100
Patent
active
045790493
ABSTRACT:
The invention relates to a coffee percolating machine comprising a housing including coffee meal and hot water supply means, an outlet opening for the coffee brew, and a discharge opening for the exhausted coffee meal, at least one brewing cylinder having an open inlet end and mounted in the housing for rotation about an axis perpendicular to its longitudinal axis from a coffee meal charging position to a brewing position and on to a discharge position for discharging the exhausted coffee meal, and a piston disposed in the brewing cylinder for axial displacement therein in response to the position assumed thereby. In order to avoid the otherwise necessary frequent cleaning of the machine by an operator, and the malfunctions caused by contamination as a result of such frequent cleaning not having been carried out in the case of a coffee percolating machine with an automatically proceeding brewing cycle, the invention provides a positive position control for the piston derived from the rotation of the brewing cylinder. This positive position control eliminates the need of continual supervision and permits the exhausted coffee meal to be expelled completely without additional cleaning with water. In a particularly simple embodiment, the positive position control means consists of a guide path within the housing an a follower member on the piston.
REFERENCES:
patent: 3266410 (1966-08-01), Novi
patent: 3754462 (1973-08-01), Brill
patent: 3760712 (1973-09-01), Rossi
patent: 4034660 (1977-07-01), Egi
Jenkins Robert W.
Wurttenbergische Metallwarenfabrik AG
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