Patent US3858569A successfully refreshed from Google Patents.
US3858569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coffee brewing system
Assignee: Farmer Bros Co
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Filing: 1973-01-26
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Granted: 1975-01-07
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Expires: 1993-01-26
Abstract
Abstract A coffee brewing system providing a predetermined amount of water to a heating reservoir. Water at line pressure is connected to the inlet of a first water pressure regulator. The first pressure regulator acts as a buffer for the high pressure water line and drops the pressure level to a predetermined level. Water from the first regulator is then connected to a second regulator which provides a relatively constant water pressure output at a pressure level less than that of the first regulator. An actuating mechanism comprising a timer is used to open a valve and allow water from the output of the second water pressure regulator to flow into a heating reservoir. The water pressure output at the second pressure regulator is sufficiently constant so that for a fixed interval of time a predetermined amount of water flows through the valve into the reservoir. In addition, a water filled coil positioned in the heating reservoir provides a small amount of heated water when desired for brewing tea and the like.
Inventors
- 👤 Guenter W Berger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:52
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/44; A47J31/54; A47J31/56
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
178 words
A coffee brewing system for providing a predetermined amount of water to a heating reservoir comprising: water pressure regulating means comprising a first water pressure regulator and a second water pressure regulator, said first water pressure regulator having an inlet to which an inlet water line is connected and an outlet connected to an inlet of said second water pressure regulator for providing water at said second water pressure regulator inlet at a first predetermined water pressure level; control means for allowing said water to flow from said regulating means to said reservoir for a predetermined interval of time and fill said reservoir with a predetermined amount of water; means for removing heated water from said reservoir each time said reservoir is filled; and wherein said reservoir contains a first coil for heating said water in said reservoir, a second coil in said reservoir interconnected at one end to a water supply wherein water in said coil is heated, and manually actuatable means for removing heated water in said second coil independent of said water in said reservoir.
Claim 2
Dependent Claim
178 words
A coffee brewing system for providing a predetermined amount of water to a heating reservoir comprising: water pressure regulating means comprising a first water pressure regulator and a second water pressure regulator, said first water pressure regulator having an inlet to which an inlet water line is connected and an outlet connected to an inlet of said second water pressure regulator for providing water at said second water pressure regulator inlet at a first predetermined water pressure level; control means for allowing said water to flow from said regulating means to said reservoir for a predetermined interval of time and fill said reservoir with a predetermined amount of water; means for removing heated water from said reservoir each time said reservoir is filled; and wherein said reservoir contains a first coil for heating said water in said reservoir, a second coil in said reservoir interconnected at one end to a water supply wherein water in said coil is heated, and manually actuatable means for removing heated water in said second coil independent of said water in said reservoir.
Claim 3
Dependent Claim
29 words
A coffee brewing system in accordance with claim 1, wherein said water supply to said second coil is connected to the inlet end of said second water pressure regulator.
Claim 4
Dependent Claim
249 words
A coffee brewing system for providing a predeterMined amount of water to a heating reservoir comprising: a container structure comprising a control section and a reservoir section, said reservoir section being divided into an upper inlet chamber and a lower heating chamber; an inlet tube coupling inlet water from said control section into said reservoir section at said upper inlet chamber; a discharge tube for feeding water from said upper inlet chamber into said heating chamber; syphon means for coupling water from said heating chamber to a spray head for discharging heated water each time water from said inlet tube is fed into said upper inlet chamber; said control section comprising water pressure regulating means including a first water pressure regulator and a second water pressure regulator, said first water pressure regulator having an inlet to which an inlet water line is connected and an outlet connected to an inlet of said second water pressure regulator for providing water at said second water pressure regulator inlet at a first predetermined water pressure level, said second water pressure regulator having an outlet for providing water at a second pressure level which is less than the first water pressure level at said second water pressure regulator inlet; and means including a valve for allowing said water to flow from said regulating means to said inlet tube, and an adjustable timer for controlling said valve operation for a predetermined interval of time and filling said reservoir with a predetermined amount of water.
Claim 5
Dependent Claim
249 words
A coffee brewing system for providing a predeterMined amount of water to a heating reservoir comprising: a container structure comprising a control section and a reservoir section, said reservoir section being divided into an upper inlet chamber and a lower heating chamber; an inlet tube coupling inlet water from said control section into said reservoir section at said upper inlet chamber; a discharge tube for feeding water from said upper inlet chamber into said heating chamber; syphon means for coupling water from said heating chamber to a spray head for discharging heated water each time water from said inlet tube is fed into said upper inlet chamber; said control section comprising water pressure regulating means including a first water pressure regulator and a second water pressure regulator, said first water pressure regulator having an inlet to which an inlet water line is connected and an outlet connected to an inlet of said second water pressure regulator for providing water at said second water pressure regulator inlet at a first predetermined water pressure level, said second water pressure regulator having an outlet for providing water at a second pressure level which is less than the first water pressure level at said second water pressure regulator inlet; and means including a valve for allowing said water to flow from said regulating means to said inlet tube, and an adjustable timer for controlling said valve operation for a predetermined interval of time and filling said reservoir with a predetermined amount of water.
Claim 6
Dependent Claim
37 words
A coffee brewing system in accordance with claim 3 wherein a restricted orifice is coupled to the outlet of said second water pressure regulating means for providing a constant flow at the second water pressure regulator outlet.
Claim 7
Dependent Claim
19 words
A coffee brewing system in accordance with claim 3 wherein said first and second water pressure regulators are non-adjustable.
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) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |