US3943320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frankfurt searing tray for use with microwave energy
Assignee: Raytheon Co
•
Filing: 1975-06-19
•
Granted: 1976-03-09
•
Expires: 1995-06-19
Abstract
Abstract A utensil for heating circular elongated objects with microwave energy is disclosed for securing browning and searing of the exterior surfaces. A plurality of searing members of a curved tapered substantially V-shaped configuration encompass a portion of or all of the elongated object to be heated. The searing means are supported on a microwave transparent frame of a plastic material.
Inventors
- 👤 Robert F. Bowen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:36
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; H05B6/647; H05B6/6491; H05B6/6494; F; F24; F24C; F24C7/00; F24C7/02; Y; Y10; Y10S; Y10S99/00; Y10S99/14
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
88 words
An apparatus for heating circular elongated objects with microwave energy comprising: a plurality of curved conductive members surrounding a substantial portion of the objects to be heated; means for supporting said members; each of said conductive members defining two leg portions and a continuous apex portion; said leg portions having a length substantially equal to one-quarter of a wavelength of the microwave energy utilized; said conductive members providing adjacent to the ends of said leg portions an intense out-of-phase fringing electric field pattern when radiated by microwave energy.
Claim 2
Independent Claim
88 words
An apparatus for heating circular elongated objects with microwave energy comprising: a plurality of curved conductive members surrounding a substantial portion of the objects to be heated; means for supporting said members; each of said conductive members defining two leg portions and a continuous apex portion; said leg portions having a length substantially equal to one-quarter of a wavelength of the microwave energy utilized; said conductive members providing adjacent to the ends of said leg portions an intense out-of-phase fringing electric field pattern when radiated by microwave energy.
Claim 3
Dependent Claim
14 words
The apparatus according to claim 1 wherein said conductive members have a semicircular configuration.
Claim 4
Dependent Claim
14 words
The apparatus according to claim 1 wherein said conductive members have a circular configuration.
References Cited (Backward Citations)
US3230864A
Cited
FR1596475A
Cited
US3701872A
Cited
US3662141A
Cited
NL7004169A
Cited
US3591751A
Cited
US3809845A
Cited
US3878350A
Cited
US3881027A
Cited
US3845266A
Cited
US3857009A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-09 | 1979-09-08 | 1980-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-09 | 1983-09-08 | 1984-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-09 | 1987-09-08 | 1988-03-09 | $7700.00 | Window Closed / Lapsed |