US4306492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making a coffee beverage
Assignee: Individual
•
Filing: 1979-07-25
•
Granted: 1981-12-22
•
Expires: 1999-07-25
Abstract
Abstract Apparatus for enclosing a filter bag, filled with a portion of coffee provided with a cup, a bellows member formed beneath the cup and separated by a perforated wall, the coffee portion being inserted within the bellows.
Inventors
- 👤 Jurgen Zimmermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:52
CPC Classifications
A; A47; A47G; A47G19/00; A47G19/12; A47G19/16; A47J; A47J31/00; A47J31/06; A47J31/18; A47J31/20
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
137 words
Apparatus for the production of a coffee beverage from dry coffee powder contained in a filter bag comprising a drinking cup having an upper edge, a generally cylindrical wall and a closed bottom, and a perforated partition extending transversely within said cup to form an intermediate horizontal wall spaced above the bottom of said cup, said intermediate wall and the bottom of said cup defining a chamber adapted to contain the filter bag, said chamber being surrounded by a substantially cylindrical wall portion, said cylindrical wall portion being corrugated along circumferential fold lines to form a bellows permitting the bottom to be pumped relative to the intermediate wall, whereby on filling said cup with water, and pumping said bottom wall water is caused to flow in a current through said intermediate wall and through said filter bag.
Claim 2
Dependent Claim
137 words
Apparatus for the production of a coffee beverage from dry coffee powder contained in a filter bag comprising a drinking cup having an upper edge, a generally cylindrical wall and a closed bottom, and a perforated partition extending transversely within said cup to form an intermediate horizontal wall spaced above the bottom of said cup, said intermediate wall and the bottom of said cup defining a chamber adapted to contain the filter bag, said chamber being surrounded by a substantially cylindrical wall portion, said cylindrical wall portion being corrugated along circumferential fold lines to form a bellows permitting the bottom to be pumped relative to the intermediate wall, whereby on filling said cup with water, and pumping said bottom wall water is caused to flow in a current through said intermediate wall and through said filter bag.
Claim 3
Dependent Claim
42 words
Apparatus according to claim 1, including a pair of rim holder elements provided on the interior of said drinking cup above said intermediate wall, said rim holders being adapted to cooperate with a filter bag to position same within the drinking cup.
Claim 4
Dependent Claim
27 words
The apparatus according to claim 1 or 2, wherein said drinking cup is formed of material sufficiently rigid to enable formation of said corrugations and withstand pumping.
Claim 5
Dependent Claim
11 words
The apparatus according to claim 3, wherein said material is plastic.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-12-21 | 1985-06-22 | 1985-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-21 | 1989-06-22 | 1989-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-21 | 1993-06-22 | 1993-12-22 | $7700.00 | Window Closed / Lapsed |