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US 5,697,288 AGranted
Encapsulating coffee between two layers of paper
OwnerAlan M. Kinginventor
Life of this patent
Estimating the term…
Abstract
A beverage brewer with tape formed of two layers of paper between which are packets of coffee. The tape has perforations along each edge and sprockets intermittently drive the tape so as to place fresh coffee into the brewer and to remove the used coffee from the brewing chamber.
Claims8
A beverage brewing machine comprising, in combination:
- an upper brewing chamber adapted to receive hot water and a beverage material and having an open lower end;
- a cylinder with an open upper end normally in registration with said open lower end of the upper brewing chamber;
- a filter tape including layers of filter material with a beverage preparation material encapsulated between the layers of filter material wherein the beverage preparation material includes individual prepackaged portions connected continuously by the filter tape;
- and
- a sprocket engaging the filter tape to advance each of the individual prepackaged portions of the beverage preparation material to a position at which the open upper end of the cylinder is in registration with the open lower end of the brewing chamber wherein the cylinder withdraws water through the beverage preparation material producing a brewed beverage.
2 more elements
A beverage brewing machine comprising, in combination:
- an upper brewing chamber adapted to receive hot water and a beverage material and having an open lower end;
- a cylinder with an open upper end normally in registration with said open lower end of the upper brewing chamber;
- and
- an individual prepackaged portion of beverage preparation material which may be manually inserted into and removed from the machine wherein the beverage preparation material is placed in a suitable container open to the atmosphere and mixed with hot water wherein through the bottom of the container a positive air pressure is admitted to thoroughly agitate the mixture of the water and the beverage preparation material to leach soluble solids from the beverage preparation material and further wherein following the period that positive pressure is applied, the bottom of the container is subjected to a negative pressure to withdraw the brewed beverage from the container through the coffee packet and empty the beverage into a user's cup.
1 more element
Dependencies are inferred from the claim text.