US3593649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coffee-making apparatus
Assignee: Individual
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Filing: 1968-11-27
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Granted: 1971-07-20
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Expires: 1988-11-27
Abstract
Abstract An automatic coffeemaking apparatus comprising a drum supported for rotation about an horizontal axis within a cylindrical chamber formed in a casing and having an upwardly turned fresh coffee inlet passage, a laterally turned screened beverage outlet passage and a downwardly turned exploited coffee exhaust and dispensing passage diametrally opposite to said inlet passage, the said passages defining a first and respectively a second and a third work station circumferentially spaced of 90* from each other. The said drum is formed with two diametrally located opposite coffeemaking cavities and adapted to be intermittently driven for successive 90* rotational steps, whereby either of said cavities is sequentially indexed at any of said stations, and the indexing of any cavity at said third station for exploited coffee exhaustion causing indexing of the other cavity at the first station, preparatory for a next cycle of operation.
Inventors
- 👤 Andrea Ivo Novi
- 👤 Mario Egi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:59
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/24; A47J31/34; A47J31/36; A47J31/3604; A47J31/3609
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
186 words
In an automatic coffeemaking apparatus, a combination comprising a stationary casing have an inner cylindrical surface defining a cylindrical chamber having a fresh coffee inlet means at a first station, a screened beverage outlet at a second station circumferentially displaced in one direction from said first station, and a used coffee discharge outlet means at a third station further circumferentially displaced in said direction and located diametrically opposite said first station; a cylindrical drum having an outer surface sealingly engaging said inner cylindrical surface of said casing and having only two diametrically opposite coffeemaking cavities extending radially inwArdly from said outer surface, said drum being stepwise rotatable about the axis of the chamber for consecutive indexing alignment of said cavities with said stations; and drive means operatively connected to said drum for rotating the same, when actuated, through a cycle of operation in which the cavity located at the first station is indexed first into alignment with said second station and then into alignment with said third station so that at the end of said cycle the other cavity will be aligned with said first station.
Claim 2
Dependent Claim
186 words
In an automatic coffeemaking apparatus, a combination comprising a stationary casing have an inner cylindrical surface defining a cylindrical chamber having a fresh coffee inlet means at a first station, a screened beverage outlet at a second station circumferentially displaced in one direction from said first station, and a used coffee discharge outlet means at a third station further circumferentially displaced in said direction and located diametrically opposite said first station; a cylindrical drum having an outer surface sealingly engaging said inner cylindrical surface of said casing and having only two diametrically opposite coffeemaking cavities extending radially inwArdly from said outer surface, said drum being stepwise rotatable about the axis of the chamber for consecutive indexing alignment of said cavities with said stations; and drive means operatively connected to said drum for rotating the same, when actuated, through a cycle of operation in which the cavity located at the first station is indexed first into alignment with said second station and then into alignment with said third station so that at the end of said cycle the other cavity will be aligned with said first station.
Claim 3
Dependent Claim
17 words
The combination of claim 1, wherein the said drum is supported for rotation about a horizontal axis.
Claim 4
Dependent Claim
56 words
The combination of claim 1, wherein said second work station defining said screened outlet is circumferentially spaced of 90* from both said inlet and outlet means at said first and respectively third work stations to provide step-by-step motion of uniform amplitude for said drum and alternate servicing of either coffeemaking cavities at said second work station.
Claim 5
Dependent Claim
67 words
The combination of claim 1, comprising passage means in said drum and in said casing for selectively connecting either of said coffeemaking cavities when at said second work station to a source of metered amounts of hot pressurized water for forcing a metered amount of such water through an amount of coffee held in said cavity at said second station in faced relationship with said screened outlet.
Claim 6
Dependent Claim
55 words
The combination of claim 4, wherein said source of water comprises a pressure resisting thermostatically heated container, having its upper portion connected to said passage means, and a pump having its outlet connected to the lower portion of said container and its inlet connected to a source of water via a water amount metering means.
Claim 7
Dependent Claim
133 words
The combination of claim 5, including a three-ways valve having its inlet connected to said source of water, a first outlet connected to a metering reservoir and a second outlet connected to the inlet of said pump, said valve being operatable between a position in which its inlet is connected to said first outlet to prepare a metered amount of water in said reservoir, another position in which said first outlet is connected to said second outlet whereby upon actuation of said pump a metered amount of pressurized water is forced in the lower portion of said thermostatically heated container and a corresponding amount of hot pressurized water is forced off from the upper portion of same container and in the said passage means and coffeemaking cavity standing at said second work station.
Claim 8
Dependent Claim
53 words
The combination of claim 1, comprising a downwardly turned beverage outlet, a beverage receiving cup vertically movable support tray located beneath said outlet, biased support means upwardly urging said tray when not loaded with said cup, and automatic operation triggering means sensing the motion of said tray upon loading it with said cup.
Claim 9
Dependent Claim
28 words
The combination of claim 1, and including a piston axially slidable in each cavity, said passage means communicating with the respective cavity axially rearwardly of the piston therein.
References Cited (Backward Citations)
US2943556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |