US5736713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus of cooking food in a lightwave oven
Assignee: General Electric Co
•
Filing: 1995-06-07
•
Granted: 1998-04-07
•
Expires: 2015-06-07
Abstract
Abstract A lightwave oven cooking method and apparatus using power and pulsed power applied to a plurality of high-power lamps which provide radiant energy in the electromagnetic spectrum and having a wavelengths including the visible and near-visible ranges wherein irradiation is applied to the food by applying power to the lamps for a specified period of time without vaporizing all of the surface water on the food, and then applying reduced irradiation to the food to complete the cooking cycle without producing an overly browned surface which inhibits deep penetration of radiation in the near-visible and visible ranges. The reduced power can be at a reduced duty cycle which can be done in a sequence of one or more reducing steps in the duty cycle or a continuous reduction of the duty cycle of the power applied to the lamps. A change in the generation of steam or in the food temperatures to a predetermined degree can be sensed to reduce power.
Inventors
- 👤 Eugene Westerberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:18
CPC Classifications
H; H05; H05B; H05B3/00; G; G05; G05D; G05D1/00; G05D1/08; G05D1/0808; G05D1/0816; A; A47; A47J; A47J37/00; A47J37/06; A47J37/0623; A47J37/0629; F; F24; F24C; F24C7/00; F24C7/06; F24C7/08; F24C7/087; G01; G01L; G01L1/00; G01L1/14; G01L1/142; G01L1/144; H05B3/0033; H05B3/0071; H05B3/0076
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
109 words
The method of cooking food in a lightwave oven having a plurality of high power lamps providing radiant energy in the electromagnetic spectrum including a significant portion in the near-visible and visible ranges comprising the steps of: irradiating the food by applying power to at least one of said lamps without vaporizing all the surface water on the food for avoiding browning in the surface thereby enabling deep penetration of the food by irradiation in the near-visible and visible ranges sensing the generation of steam and then the reducation of steam below a pre-determined level, then terminating irradiation of the food and then applying reduced irradiation to the food.
Claim 2
Independent Claim
109 words
The method of cooking food in a lightwave oven having a plurality of high power lamps providing radiant energy in the electromagnetic spectrum including a significant portion in the near-visible and visible ranges comprising the steps of: irradiating the food by applying power to at least one of said lamps without vaporizing all the surface water on the food for avoiding browning in the surface thereby enabling deep penetration of the food by irradiation in the near-visible and visible ranges sensing the generation of steam and then the reducation of steam below a pre-determined level, then terminating irradiation of the food and then applying reduced irradiation to the food.
Claim 3
Independent Claim
104 words
The method of cooking food in a lightwave oven having a plurality of high power lamps providing radiant energy in the electromagnetic spectrum including a significant portion in the near-visible and visible ranges comprising the steps of: irradiating the food by applying power to at least one of said lamps without vaporizing all the surface water on the food for avoiding browning in the surface thereby enabling deep penetration of the food by irradiation in the near-visible and visible ranges, then applying reduced irradiation to the food, sensing the temperature of the food to a pre-determined degree and then terminating irradiation of the food.
Claim 4
Independent Claim
104 words
The method of cooking food in a lightwave oven having a plurality of high power lamps providing radiant energy in the electromagnetic spectrum including a significant portion in the near-visible and visible ranges comprising the steps of: irradiating the food by applying power to at least one of said lamps without vaporizing all the surface water on the food for avoiding browning in the surface thereby enabling deep penetration of the food by irradiation in the near-visible and visible ranges, then applying reduced irradiation to the food, sensing the temperature of the food to a pre-determined degree and then terminating irradiation of the food.
Claim 5
Independent Claim
118 words
The method of cooking food in a lightwave oven having at least one high power lamp providing radiant energy in the electromagnetic spectrum including a significant portion in the near-visible and visible ranges comprising the steps of: irradiating the food by applying power to said at least one lamp without vaporizing all of the surface water on the food for avoiding browning of the surface thereby enabling deep penetration of the food by radiation in the near-visible and visible ranges, sensing the generation of steam and then the reduction of steam below a pre-determined level and then turning off said at least one lamp until water is replenished from within the food onto the surface of the food.
Claim 6
Independent Claim
118 words
The method of cooking food in a lightwave oven having at least one high power lamp providing radiant energy in the electromagnetic spectrum including a significant portion in the near-visible and visible ranges comprising the steps of: irradiating the food by applying power to said at least one lamp without vaporizing all of the surface water on the food for avoiding browning of the surface thereby enabling deep penetration of the food by radiation in the near-visible and visible ranges, sensing the generation of steam and then the reduction of steam below a pre-determined level and then turning off said at least one lamp until water is replenished from within the food onto the surface of the food.
References Cited (Backward Citations)
US2559249A
Cited
US2864932A
Cited
US3037443A
Cited
GB839551A
Cited
US3033968A
Cited
US3249741A
Cited
US3304406A
Cited
US3313917A
Cited
US3342977A
Cited
US3470942A
Cited
US3448678A
Cited
US3666921A
Cited
US3621200A
Cited
GB1273023A
Cited
US3569656A
Cited
US3688084A
Cited
US3828163A
Cited
US3935807A
Cited
DE2546106A1
Cited
US4410779A
Cited
US4401884A
Cited
US4463238A
Cited
US4244284A
Cited
US4379964A
Cited
US4245148A
Cited
US4575616A
Cited
US4486639A
Cited
JPS5947302A
Cited
US4565704A
Cited
GB2132060A
Cited
US4481405A
Cited
US4516486A
Cited
JPS6037116A
Cited
GB2152790A
Cited
US4554437A
Cited
SU1215651A1
Cited
US4687895A
Cited
DE3503648A1
Cited
US4700051A
Cited
US4731251A
Cited
EP0215617A1
Cited
US4761529A
Cited
JPH01154483A
Cited
US5039535A
Cited
US5517005A
Cited
GB2245136A
Cited
US5182439A
Cited
US5567459A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-04-06 | 2001-10-06 | 2002-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-04-06 | 2005-10-06 | 2006-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-04-06 | 2009-10-06 | 2010-04-07 | $7700.00 | Window Closed / Lapsed |