US4509868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature indicating device for a cooking pot and device-pot combination
Assignee: HOLDENBECK TRADING Co Ltd
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Filing: 1982-06-08
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Granted: 1985-04-09
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Expires: 2002-06-08
Abstract
Abstract This invention relates to a temperature indicating device for pots and to a device-pot combination comprising a sensor and an indicator circuit for the temperature internally attained by the pot, characterized in that the temperature sensor is a part of the pot and the latter is thermally connected by means of good thermal conductive material to a transducer for converting the information from a temperature into an electric quantity. Advantageously, the temperature indicating device can be applied both to the pot-lid and to the handle.
Inventors
- 👤 Mario Ronconi
- 👤 Renzo Civitani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:16
CPC Classifications
G; G01; G01K; G01K13/00; A; A47; A47J; A47J27/00; A47J27/21; A47J27/212; G01K1/00; G01K1/02; G01K1/028; G01K1/16; G01K7/00; G01K7/01
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
98 words
A thermometer device for a cooking receptable, comprising in combination: means, coacting with at least a portion of said cooking receptable, for sensing variations of temperature within said receptable; transducer means, operatively connected with said sensing means, for converting said temperature variations attained during said sensing to corresponding electrical variations; A/D (analog-to-digital) circuit means, operatively associated with said transducer means, for converting said electrical variations from analog signals to digital signals; and means, operatively associated with said A/D means, for displaying said temperature variations according to said electrical variations and displaying said temperature variations as digital display variations.
Claim 2
Dependent Claim
98 words
A thermometer device for a cooking receptable, comprising in combination: means, coacting with at least a portion of said cooking receptable, for sensing variations of temperature within said receptable; transducer means, operatively connected with said sensing means, for converting said temperature variations attained during said sensing to corresponding electrical variations; A/D (analog-to-digital) circuit means, operatively associated with said transducer means, for converting said electrical variations from analog signals to digital signals; and means, operatively associated with said A/D means, for displaying said temperature variations according to said electrical variations and displaying said temperature variations as digital display variations.
Claim 3
Dependent Claim
22 words
A device as in claim 1, wherein: said transducer means and said display means are attached to a lid for said receptable.
Claim 4
Dependent Claim
22 words
A device as in claim 2, wherein: said transducer means and said display means are incorporated into a knob for said lid.
Claim 5
Dependent Claim
17 words
A device as in claim 1, wherein said display means comprises: a liquid crystal diode digital display.
Claim 6
Dependent Claim
13 words
A device as in claim 1, wherein said transducer means comprises: a transistor.
Claim 7
Dependent Claim
29 words
A device as in claim 1, and further comprising: thermal switch means, operatively associated with said display means, for limiting said display variations to temperatures above a threshold temperature.
References Cited (Backward Citations)
US1716473A
Cited
US3582921A
Cited
US3736861A
Cited
US3701344A
Cited
US3955420A
Cited
US4012117A
Cited
US4068138A
Cited
US4028057A
Cited
US4242679A
Cited
US4278325A
Cited
US4206501A
Cited
US4198676A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-08 | 1988-10-08 | 1989-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-08 | 1992-10-08 | 1993-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-08 | 1996-10-08 | 1997-04-09 | $7700.00 | Window Closed / Lapsed |