Coffee, tea and herbal tea maker
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0145620
(1998-09-02)
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발명자
/ 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
7 인용 특허 :
1 |
초록
▼
A device for brewing hot beverages comprises a lower container for receiving water, an upper container for receiving brewed beverage, and a piston-cylinder assembly into which coffee grounds, tea leaves, and herbs are placed. The grounds, etc. are compressed and subjected to high temperature water a
A device for brewing hot beverages comprises a lower container for receiving water, an upper container for receiving brewed beverage, and a piston-cylinder assembly into which coffee grounds, tea leaves, and herbs are placed. The grounds, etc. are compressed and subjected to high temperature water and steam, to extract essences and produce a beverage, such as espresso coffee. The piston has a decompression chamber at its upper end, formed between the piston top and a perforated diffuser plate. Pressurized hot water from the lower container flows through a nozzle in the piston top, into the decompression chamber, through the holes of the diffuser plate, and then into the grounds. The piston moves upwardly to compress the grounds against an upper perforated plate, first with rising force, and then with constant force. Since the total flow path cross sectional area of the holes in the diffuser plate is several times greater than the flow area of the piston top nozzle, the pressure in the decompression chamber is substantially lower than the pressure in the lower container. This enables a lowered velocity of water and steam which pass through the diffuser plate and into the grounds.
대표청구항
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[ I claim:] [1.] A device for brewing of beverages from grounds comprising:a lower container assembly having an open top and a closed bottom;an upper container assembly, for receiving brewed beverage, having a bottom end releasably connected to the top of the lower container assembly; the bottom end
[ I claim:] [1.] A device for brewing of beverages from grounds comprising:a lower container assembly having an open top and a closed bottom;an upper container assembly, for receiving brewed beverage, having a bottom end releasably connected to the top of the lower container assembly; the bottom end having an opening in communication with said lower container open top;a perforated plate mounted proximate said bottom end opening, for preventing movement of grounds from the lower container assembly into the upper container assembly by way of said open top and said bottom end opening;a piston-cylinder assembly positioned within the lower container assembly, for receiving grounds, the piston-cylinder assembly comprising(a) a cylinder, for slidably receiving a piston, having an upper end and a lower end, said lower end proximate the bottom of the lower container assembly, and said upper end proximate the top of the lower container assembly;(b) a piston, positioned within the cylinder, having a top with a nozzle therethrough; the piston slidable within the cylinder from said lower cylinder end to said upper cylinder end, to thereby compress grounds placed within the cylinder against the perforated plate; and,(c) a diffuser plate having a multiplicity of through-holes; the diffuser plate attached to the piston top for pressing on the grounds when the piston moves upwardly; a portion of the diffuser plate spaced apart from the piston top, to create a decompression chamber therebetween.
이 특허에 인용된 특허 (1)
-
Piazza Pietro (11 Catherine Dr. Prospect CT 06712), Expresso coffee maker.
이 특허를 인용한 특허 (7)
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Mancini, Graziano, Beverage brewer.
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Guerrero,Victor, Beverage container with wire cloth filter.
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Piazza, Pietro, Coffee, tea, and herbal tea maker.
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Alves, Helio Vieira, Microwave milk jug and method to boil milk or similar drinks in microwave jugs.
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Crescenzi, Massimo, Moka coffee machine and method for preparing a coffee-flavoured drink.
-
Ranzoni,Francesco, Valve for coffee maker.
-
Guerrero,Victor, Wire cloth coffee filtering systems.
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