Patent US4188864A successfully refreshed from Google Patents.
US4188864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric coffee or tea maker
Assignee: WIGO GOTTLOB WIDMANN AND SOHNE GmbH
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Filing: 1978-08-23
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Granted: 1980-02-19
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Expires: 1998-08-23
Abstract
Abstract A coffee or tea pot is placed on a base plate of the coffee/tea maker. A boiler zone which includes a boiler vessel is located laterally adjacent the pot so that the pot is heated from the side when placed on the base plate in a predetermined position, as determined, for example, by locating notches or grooves. The boiler unit is laterally extended to partly surround the circumference of the side walls of the pot with extension wings. The back of the extension wings is insulated, for example by a housing, which also surrounds the boiler. The arrangement permits a short path of boiling water or steam from the boiler to the top of the pot, while efficiently transferring heat thereto.
Inventors
- 👤 Kurt Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:45
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/04; A47J31/057; A47J31/0573; A47J31/44; A47J31/54; A47J31/542
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
124 words
Electric coffee or tea maker having a base plate (12) having means (17) to locate a coffee or tea pot (13) thereon; a boiler (7, 10); duct means (9, 3, 4) guiding water and/or steam from the boiler to the top of the pot; water supply duct means (5, 6) conducting water to the boiler; and wherein, in accordance with the invention, the boiler (7, 10) is located upwardly from the base plate and laterally adjacent the pot, when the pot is in position on said locating means, and includes an inner wall surrounding a portion of the lateral circumference thereof and at least a portion (9) of the duct means guiding water or steam from the boiler to the top of the pot.
Claim 2
Dependent Claim
124 words
Electric coffee or tea maker having a base plate (12) having means (17) to locate a coffee or tea pot (13) thereon; a boiler (7, 10); duct means (9, 3, 4) guiding water and/or steam from the boiler to the top of the pot; water supply duct means (5, 6) conducting water to the boiler; and wherein, in accordance with the invention, the boiler (7, 10) is located upwardly from the base plate and laterally adjacent the pot, when the pot is in position on said locating means, and includes an inner wall surrounding a portion of the lateral circumference thereof and at least a portion (9) of the duct means guiding water or steam from the boiler to the top of the pot.
Claim 3
Dependent Claim
61 words
Coffee or tea maker according to claim 1, wherein the locating means on the base plate comprise a guide ridge (17) shaped to match, at least in part, the outer circumference of the pot (13) of the coffee or tea maker, and determining the position of the coffee or tea maker (13) to engage a side wall (18) of the boiler.
Claim 4
Dependent Claim
96 words
Coffee or tea maker according to claim 1 wherein the boiler is formed with a side wall (18) facing the pot, when the pot is in position on said locating means, said side wall matching the outer circumference of at least a portion of the pot; and a cover plate (15) located at the outer side of said side wall (18) and defining with said side wall a boiler chamber, the cover plate (15) including the portions (9) of said duct means guiding boiling water to steam from the boiler to the top of the pot.
Claim 5
Dependent Claim
30 words
Coffee or tea maker according to claim 1, further comprising a housing (1) surrounding the boiler and the duct means and enclosing, with clearance, said boiler and said duct means.
Claim 6
Dependent Claim
48 words
Coffee or tea maker according to claim 1, wherein the boiler (7, 10) has an outer wall (18) facing the pot; and two wing-like extensions, one on each side of the inner wall extending from said inner wall (18) and partly surrounding the outer circumference of the pot.
Claim 7
Dependent Claim
35 words
Coffee or tea maker according to claim 5, wherein in the pot, in plan view, is circular; and the wing-like extensions (19) are part-cylindrical segmental elements surrounding a portion of the circumference of the pot.
Claim 8
Dependent Claim
23 words
Coffee or tea maker according to claim 5, further including a housing (1) surrounding the wing-like extensions (19) at the outer side thereof.
Claim 9
Dependent Claim
68 words
Coffee or tea maker according to claim 7, wherein the wing-like extensions are made of good heat-conductive material; the housing (1) is made of poor heat-conductive material and has a surface which is spaced from said inner wall (18) of the boiler and of the wing-like extensions to provide a safety spacing from said extensions and prevent accidental contact of a user with the outside of said extensions.
Claim 10
Dependent Claim
56 words
Coffee or tea maker according to claim 8, wherein the housing is hollow, and an air space is formed between the outer wall of the housing and the wing-like extensions to concentrate heat from the inner wall of the boiler (18) and said wing-like extensions (19) on the pot and provide insulation towards the back thereof.
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) | 1983-02-18 | 1983-08-20 | 1984-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-02-18 | 1987-08-20 | 1988-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-02-18 | 1991-08-20 | 1992-02-19 | $7700.00 | Window Closed / Lapsed |