Patent US3020671A successfully refreshed from Google Patents.
Patent US3683790A successfully refreshed from Google Patents.
US3683790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recirculation coffee brewer
Assignee: Fawn Engineering Co
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Filing: 1971-04-16
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Granted: 1972-08-15
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Expires: 1991-04-16
Abstract
Abstract Coffee or tea brewing and dispensing apparatus wherein hot water and fresh beverage grounds are delivered into an open top receptacle and the brewed beverage drawn from the bottom thereof through a filter comprising wet coffee grounds supported on a foraminous screen by a suction pump in a recirculation and delivery line coupled to the bottom of the receptacle. A discharge spout connected to the line downstream of the pump is mounted for shifting movement from a position for returning brewed beverage back into the receptacle to an alternate position for delivering the beverage to a dispensing station. The receptacle is selectively movable away from the screen through a displacement to permit removal of grounds therefrom by a scraper blade shiftable across the upper face of the screen. A series of cams and associated followers driven by a single motor sequentially operate the components of the apparatus by controlling introduction of water and fresh grounds into the receptacle, effecting predetermined recirculation of the brewed beverage, then diverting the spout to the delivery position thereof and finally elevating the receptacle and causing the scraper to remove grounds from the screen.
Inventors
- 👤 Stewart L Black
- 👤 Spencer L Childers
- 👤 Leonard Bieri Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:59
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/002; A47J31/04; A47J31/053; A47J31/44; A47J31/60
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
151 words
Beverage brewing and dispensing apparatus comprising: a source of brewing water; a source of brewable grounds; a beverage dispensing station; a brewing receptacle having inlet and outlet openings in the upper and lower portions thereof respectively; foraminous means normally extending across said outlet opening; means for delivering predetermined quantities of water and grounds from said sources thereof into said receptacle through said inlet opening; pump means having a suction intake and a pressure output; first conduit means coupling said suction intake into communication with said outlet opening of the receptacle; means for operating said pump means; a shiftable discharge spout; second conduit means coupling said pressure output with said spout; and means for shifting said spout between a recirculating position in which liquid is discharged from the spout into the receptacle through said inlet opening and a delivery position in which liquid is discharged from the spout to said dispensing station.
Claim 2
Dependent Claim
151 words
Beverage brewing and dispensing apparatus comprising: a source of brewing water; a source of brewable grounds; a beverage dispensing station; a brewing receptacle having inlet and outlet openings in the upper and lower portions thereof respectively; foraminous means normally extending across said outlet opening; means for delivering predetermined quantities of water and grounds from said sources thereof into said receptacle through said inlet opening; pump means having a suction intake and a pressure output; first conduit means coupling said suction intake into communication with said outlet opening of the receptacle; means for operating said pump means; a shiftable discharge spout; second conduit means coupling said pressure output with said spout; and means for shifting said spout between a recirculating position in which liquid is discharged from the spout into the receptacle through said inlet opening and a delivery position in which liquid is discharged from the spout to said dispensing station.
Claim 3
Dependent Claim
29 words
Apparatus as set forth in claim 1, wherein said suction intake and said outlet opening are normally placed in sealed communication with each other by said first conduit means.
Claim 4
Dependent Claim
16 words
Apparatus as set forth in claim 1, wherein said second conduit means includes a flexible portion.
Claim 5
Dependent Claim
47 words
Apparatus as set forth in claim 1, wherein said receptacle and said foraminous means are relatively movable away from each other, and there is provided means for scraping spent grounds from said foraminous means when said receptacle and said foraminous means are moved away from each other.
Claim 6
Dependent Claim
24 words
Apparatus as set forth in claim 4, wherein is provided means coupled with said receptacle for moving the latter away from said foraminous means.
Claim 7
Dependent Claim
33 words
Apparatus as set forth in claim 5, wherein is provided control means for successively activating said delivering means, said pump operating means, said shifting means, said receptacle moving means and said scraping means.
Claim 8
Dependent Claim
31 words
Apparatus as set forth in claim 6, wherein said control means continues to maintain said pump operating means activated during and for a predetermined period after activation of said shifting means.
Claim 9
Dependent Claim
71 words
Apparatus as set forth in claim 6, wherein said spout means is mounted for rotation relative to the receptacle and is provided with a discharge end located to overlie said inlet opening of the receptacle in said recirculating position thereof, and to overlie the dispensing station in said delivering position of the same, said control means including cam actuated elements operably coupled to said shifting means for rotating the spout means.
Claim 10
Dependent Claim
46 words
Apparatus as set forth in claim 8, wherein said dispensing station is provided with a funnel-shaped member adjacent the receptacle, located to receive beverage from the spout means when the latter is in said second position thereof, and adapted to direct beverage to a dispensing cup.
Claim 11
Dependent Claim
34 words
Apparatus as set forth in claim 1, wherein said spout is swingable relative to the receptacle about a vertical axis, and said receptacle is swingable relative to said foraminous means about a horizontal axis.
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) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |