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US3592125A
Expired / Lapsed
US
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Automatic infusion brew maker
Assignee: Unisys Corp
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Filing: 1969-03-04
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Granted: 1971-07-13
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Expires: 1989-03-04
Abstract
Abstract An automatic infusion brew maker comprising a pair of reservoirs and a pair of heat pumps connected thereto. The two heat pumps are driven by a common electrical heating means. Water from the first reservoir is pumped into a removable steeping basket, passes through a filter and exits through an outlet below the steeping basket. Water from the second reservoir is heated and pumped directly to the steeping basket outlet, thus bypassing the material to be steeped.
Inventors
- 👤 Robert J Tolmie
- 👤 Robert L Rubenstein
- 👤 Theodore R Flowers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:18
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/04; A47J31/057; A47J31/0573
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
93 words
An infusion brew maker comprising: A. a first and a second reservoir of liquid to be infused; B. a container for material to be steeped; C. a filter for separating brew from the steeped material; D. means for combining the brew with liquid from one of said reservoirs that has not been infused; and, E. a pair of pumps a. one arranged to pump liquids from the first of said reservoirs into said steeping container, and b. the other arranged to pump liquid from the second of said reservoirs to said combining means.
Claim 2
Dependent Claim
93 words
An infusion brew maker comprising: A. a first and a second reservoir of liquid to be infused; B. a container for material to be steeped; C. a filter for separating brew from the steeped material; D. means for combining the brew with liquid from one of said reservoirs that has not been infused; and, E. a pair of pumps a. one arranged to pump liquids from the first of said reservoirs into said steeping container, and b. the other arranged to pump liquid from the second of said reservoirs to said combining means.
Claim 3
Dependent Claim
88 words
The infusion brew maker of claim 1 wherein: a. said first reservoir has a relatively small capacity and said second reservoir has a relatively large capacity, and b. said first reservoir is connected to supply infusion liquid to said steeping container; and said automatic infusion brew maker further comprising: F. inlet means to said first reservoir; and G. outlet overfill means leading from said first reservoir to said second reservoir whereby said first reservoir is filled to a predetermined quantity of liquid before said second reservoir is filled.
Claim 4
Dependent Claim
61 words
The infusion brew maker of claim 1 wherein said pumps are heat pumps comprising: a. heat conductive material forming a pair of channels i. in heat conducting relation with each other, and ii. shaped and arranged such that when both said channels are filled with a liquid and said material is heated, the liquid in both oF said channels is pumped.
Claim 5
Dependent Claim
46 words
The infusion brew maker of claim 3 and: F. a serving vessel arranged to receive the combined liquids pumped from said reservoirs, and G. a warming plate on which said serving vessel sits while receiving said liquids, said plate being in heat-conducting relation with said material.
Claim 6
Dependent Claim
19 words
The infusion brew maker of claim 3 wherein said first channel is of smaller volume than said second channel.
Claim 7
Dependent Claim
23 words
the infusion brew maker of claim 3 wherein the surface-to-volume ratio of said first channel is greater than that of said second channel.
Claim 8
Dependent Claim
46 words
The infusion brew maker of claim 3 and: F. an electrical heating element a. mounted in heat-conducting relation with said heat-conductive material. b. said material being cast around said heating element in the form of a block, and c. said channels being formed in said block.
Claim 9
Dependent Claim
18 words
The heat pump of claim 1 and: B. a heating element mounted in heat-conducting relation with said material.
Claim 10
Dependent Claim
49 words
The infusion brew maker of claim 1 and: F. an infusion basket therefor comprising means for supporting a paper filter, or the like, said means arranged above a funnellike base having a central discharge opening therein, said means having outside corners depending from said filter toward said funnellike base.
Claim 11
Dependent Claim
19 words
The infusion brew maker of claim 9 wherein said infusion basket is removably mounted on one of said reservoirs.
Claim 12
Dependent Claim
58 words
The infusion brew maker of claim 9 wherein said pumps are heat pumps comprising: a. heat-conductive material forming a pair of channels i. in heat-conducting relation with each other, and ii. shaped and arranged such that when both of said channels are filled with a liquid and said material is heated the liquid in said channels is pumped.
Claim 13
Dependent Claim
28 words
The infusion brew maker of claim 9 wherein said is provided a substantially circumferential channel between said filter and said base near the outer circumference of said filter.
Claim 14
Dependent Claim
38 words
The infusion brew maker of claim 9 wherein: a. said supporting means takes the form of radial ribs upstanding from said base, b. and said outside corners are formed by cuts in the top surfaces of said ribs.
Claim 15
Dependent Claim
16 words
The infusion brew maker of claim 9 and: B. valve means for closing said discharge opening.
Claim 16
Dependent Claim
37 words
The infusion brew maker of claim 9 and: B. a bypass channel in said infusion basket for receiving liquid from said second reservoir and for directing it to said discharge opening without passing through said paper filter.
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) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |