US3969610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid heating device
Assignee: Lawrence Peska Associates Inc
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Filing: 1975-01-20
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Granted: 1976-07-13
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Expires: 1995-01-20
Abstract
Abstract A liquid heating device is used to heat a liquid at a preselected time for a predetermined length of time such as in percolating coffee. The device broadly consists of a cylindrical container having a closed bottom base, a removal top lid cover, a pouring spout affixed to the sidewall of the container as well as a U-shaped handle affixed to the sidewall of the container. A transparent tube is provided as a means of indicating the liquid level within the container. A control panel on the bottom outside periphery of the sidewall of the container has an inlet electrical receptacle, an indicator light unit, a two way switch assembly, and a timer assembly.
Inventors
- 👤 Helen Ratti
- 👤 Charles Ratti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:27
CPC Classifications
A; A47; A47J; A47J27/00; A47J27/56; A47J27/62
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
226 words
A liquid heating device, which comprises: a. a cylindrically shaped container having a closed base, an upwardly extending cylindrically shaped sidewall, an interior chamber therein, wherein a pouring spout and a U-shaped handle communicate with said sidewall; b. a removable top lid cover communicating with an open top end of said container; said container and said lid cover being of thermally and electrically insulating material; c. a control panel contained on a bottom outside periphery of said sidewall; d. an inlet receptacle, a two way switch assembly, a light unit and a timer assembly contained in said control panel; and e. an interior electrical heating element within said interior chamber electrically communicating in an electric circuit, said electric circuit including a first series circuit of a power source, said two way switch, a first electrical juncture, a thermostatic unit in fluid contact with a liquid adapted to be received in said interior chamber, a second electrical juncture, said heating element, a third electrical juncture, and a fourth electrical juncture, a second series circuit of a fifth electrical juncture and said timer assembly joined between said switch assembly and said first electrical juncture, and a third series circuit of said light unit and a variable heat responsive switch, said heat responsive switch joined to said third and said fourth electricl junctures, said electric circuit being electricaly insulated.
Claim 2
Dependent Claim
226 words
A liquid heating device, which comprises: a. a cylindrically shaped container having a closed base, an upwardly extending cylindrically shaped sidewall, an interior chamber therein, wherein a pouring spout and a U-shaped handle communicate with said sidewall; b. a removable top lid cover communicating with an open top end of said container; said container and said lid cover being of thermally and electrically insulating material; c. a control panel contained on a bottom outside periphery of said sidewall; d. an inlet receptacle, a two way switch assembly, a light unit and a timer assembly contained in said control panel; and e. an interior electrical heating element within said interior chamber electrically communicating in an electric circuit, said electric circuit including a first series circuit of a power source, said two way switch, a first electrical juncture, a thermostatic unit in fluid contact with a liquid adapted to be received in said interior chamber, a second electrical juncture, said heating element, a third electrical juncture, and a fourth electrical juncture, a second series circuit of a fifth electrical juncture and said timer assembly joined between said switch assembly and said first electrical juncture, and a third series circuit of said light unit and a variable heat responsive switch, said heat responsive switch joined to said third and said fourth electricl junctures, said electric circuit being electricaly insulated.
Claim 3
Dependent Claim
46 words
A liquid heating device as recited in claim 1, wherein said device further comprises a transparent tube member having a continuous bore therethrough passing through the legs of said U shaped handle, wherein the ends of said tube communicate with said interior chamber of said container.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-07-13 | 1980-01-12 | 1980-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-13 | 1984-01-12 | 1984-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-13 | 1988-01-12 | 1988-07-13 | $7700.00 | Window Closed / Lapsed |