US4081645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature controlled microwave oven
Assignee: Goodman Co LP
•
Filing: 1975-10-30
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Granted: 1978-03-28
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Expires: 1995-10-30
Abstract
Abstract The power supplied to the cooking cavity of a microwave oven is controlled in response to a preselected temperature of food placed therein. A temperature responsive probe is embedded in the food to be cooked, the probe including means for changing its state with variations in temperature.
Inventors
- 👤 Wallace Raymond Javes
- 👤 Calvin Andre Hagberg
- 👤 Harold Coulston Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:24
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; H05B6/6447; H05B6/6467; G; G01; G01K; G01K13/00; G01K7/00; G01K7/16; G01K7/22; H05B6/645; H05B6/6452; G01K2207/00; G01K2207/02; G01K2207/06
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
154 words
In combination: A microwave oven including an oven cavity; a microwave energy source coupled to supply microwave energy to said cavity; a temperature probe adapted to be embedded into a material to be heated in said cavity, said probe including a metal tube portion having a thermistor contained therein, a plug portion adapted for connection to a receptacle provided in a wall of the oven cavity, and a flexible metal conduit portion interconnecting said tube and plug portions and incorporating an electrical lead from said thermistor to said plug portion; control means electrically connected to said probe including means for selecting a temperature, said control means being arranged in the electrical circuit of said microwave energy source whereby said source is interrupted when the temperature of said probe reaches said selected temperature; wherein said conduit portion is encased in a flexible, non-metallic coating having a lower sensible heat transfer rate than the underlying metal.
Claim 2
Dependent Claim
154 words
In combination: A microwave oven including an oven cavity; a microwave energy source coupled to supply microwave energy to said cavity; a temperature probe adapted to be embedded into a material to be heated in said cavity, said probe including a metal tube portion having a thermistor contained therein, a plug portion adapted for connection to a receptacle provided in a wall of the oven cavity, and a flexible metal conduit portion interconnecting said tube and plug portions and incorporating an electrical lead from said thermistor to said plug portion; control means electrically connected to said probe including means for selecting a temperature, said control means being arranged in the electrical circuit of said microwave energy source whereby said source is interrupted when the temperature of said probe reaches said selected temperature; wherein said conduit portion is encased in a flexible, non-metallic coating having a lower sensible heat transfer rate than the underlying metal.
Claim 3
Dependent Claim
29 words
The combination of claim 1 wherein said coating extends over the entire length of said conduit portion and the adjacent ends of each of said tube and plug portions.
Claim 4
Dependent Claim
14 words
The combination of claim 1 wherein said coating is a room temperature vulcanized rubber.
Claim 5
Dependent Claim
14 words
The combination of claim 2 wherein said coating is a room temperature vulcanized rubber.
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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) | 1981-03-27 | 1981-09-26 | 1982-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-27 | 1985-09-26 | 1986-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-27 | 1989-09-26 | 1990-03-28 | $7700.00 | Window Closed / Lapsed |