US3589272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cartridge for quickly preparing a hot beverage
Assignee: Battelle Memorial Institute Inc
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Filing: 1970-01-27
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Granted: 1971-06-29
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Expires: 1990-01-27
Abstract
Abstract A cartridge for quickly preparing for instance hot coffee by causing water being heated in a first enclosure to burst through a partition into a second enclosure containing ground coffee particles, then though the latter whereupon hot coffee issues through an opening made beforehand in the second enclosure, the coffee particles being held back by a filtering element.
Inventors
- 👤 Gabriel Bouladon
- 👤 Victor Spreter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:46
CPC Classifications
B; B65; B65D; B65D85/00; B65D85/70; B65D85/804; B65D85/8043; A; A47; A47J; A47J31/00; A47J31/24; A47J31/30
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
134 words
A cartridge for quickly preparing a hot beverage by causing a heated liquid to flow through a particulate product which comprises at least two enclosures for respectively enclosing predetermined amounts of the liquid and of the particulate product, a first diaphragm separating the enclosures and adapted to be removed to cause them to communicate upon the diaphragm being subjected to a predetermined pressure exerted by the heated liquid, a passage communicating firstly with the enclosure for the particulate product and secondly with the outside of the cartridge, a second diaphragm arranged to close off the passage and intended to be removed when the cartridge is put to use, and at least one permeable partition adapted to retain the solid product in the enclosure which encloses it, while enabling the hot beverage to flow out.
Claim 2
Dependent Claim
134 words
A cartridge for quickly preparing a hot beverage by causing a heated liquid to flow through a particulate product which comprises at least two enclosures for respectively enclosing predetermined amounts of the liquid and of the particulate product, a first diaphragm separating the enclosures and adapted to be removed to cause them to communicate upon the diaphragm being subjected to a predetermined pressure exerted by the heated liquid, a passage communicating firstly with the enclosure for the particulate product and secondly with the outside of the cartridge, a second diaphragm arranged to close off the passage and intended to be removed when the cartridge is put to use, and at least one permeable partition adapted to retain the solid product in the enclosure which encloses it, while enabling the hot beverage to flow out.
Claim 3
Dependent Claim
51 words
A cartridge according to claim 1, for the preparation of coffee, wherein said two enclosures respectively contain predetermined quantities of water and of ground coffee and said first diaphragm is adapted to be removed when the pressure in the enclosure containing the water reaches a value of 1.1 kg/cm2 above atmospheric.
Claim 4
Dependent Claim
19 words
A cartridge according to claim 1, further comprising an electrical resistance for heating the water to the desired temperature.
Claim 5
Dependent Claim
25 words
A cartridge according to claim 1, further comprising an intermediate partition separating said two enclosures and hAving an opening closed off by said first diaphragm.
Claim 6
Dependent Claim
33 words
A cartridge according to claim 4, further comprising a second partition which is permeable to said liquid and which is placed in the enclosure containing said product, opposite and adjacent said intermediate partition.
Claim 7
Dependent Claim
36 words
A cartridge according to claim 5, wherein said intermediate partition comprises portions which project towards the second permeable partition whereby liquid issuing from said opening may spread over the entire area of said second permeable partition.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |