US4085493A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing egg cooking indicator
Assignee: Scott Technologies Inc
•
Filing: 1976-12-03
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Granted: 1978-04-25
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Expires: 1996-12-03
Abstract
Abstract A device having heat transfer characteristics generally corresponding to an egg and including an indicating means to indicate when a desired degree of cooking of an egg, of any size, subjected to the same treatment as the device, has been achieved. The device is produced by suspending a properly insulated thermometer in a transparent tube with an air space substantially surrounding the thermometer and thereafter sealing the open end of the tube.
Inventors
- 👤 Duane G. Chadwick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:27
CPC Classifications
G; G01; G01K; G01K1/00; G01K1/08; G01K1/12; G01K1/02; G01K1/04; G01K1/045; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49879; Y10T29/49888
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
96 words
A method of producing an egg cooking indicator comprising attaching a thermometer to a backing member; insulating around a temperature responsive end of the thermometer and affixing the thermometer to the backing member in a calibrated position; suspending the backing member and thermometer in a tubular transparent housing such that an air space substantially surrounds the insulated temperature responsive end of the thermometer; silvering the inside of the housing surrounding the temperature responsive end of the thermometer; and sealing the end of the housing through which the thermometer and backing member were inserted to be suspended.
Claim 2
Independent Claim
96 words
A method of producing an egg cooking indicator comprising attaching a thermometer to a backing member; insulating around a temperature responsive end of the thermometer and affixing the thermometer to the backing member in a calibrated position; suspending the backing member and thermometer in a tubular transparent housing such that an air space substantially surrounds the insulated temperature responsive end of the thermometer; silvering the inside of the housing surrounding the temperature responsive end of the thermometer; and sealing the end of the housing through which the thermometer and backing member were inserted to be suspended.
Claim 3
Dependent Claim
50 words
A method as in claim 1, wherein the backing member is suspended in a tubular transparent housing having a rounded bottom at the insulated temperature responsive end of the thermometer; and making the center of gravity of the indicator below the center of the housing, whereby the indicator is self-righting.
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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) | 1981-04-24 | 1981-10-24 | 1982-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-24 | 1985-10-24 | 1986-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-24 | 1989-10-24 | 1990-04-25 | $7700.00 | Window Closed / Lapsed |