Patent US3402277A successfully refreshed from Google Patents.
US3402277A
Expired / Lapsed
US
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Microwave treating device
Assignee: Patelhold Patenverwertungs and Elektro-Holding AG
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Filing: 1966-10-06
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Granted: 1968-09-17
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Expires: 1986-10-06
Abstract
No abstract record available.
Inventors
- 👤 Muller Paul Curt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:58
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; H05B6/78; A; A21; A21B; A21B2/00; F; F26; F26B; F26B3/00; F26B3/32; F26B3/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
MICROWAVE TREATMENT TUNNEL WITH AN ENDLESS CONVEYOR BELT WHICH IS GUIDED THROUGH AN ELECTRICAL CONDUCTIVE TUNNEL MEMBER HAVING TWO HORIZONTAL AND TWO VERTICAL INNER BOUNDING PLANES, CHARACTERIZED IN THAT THESE BOUNDING PLANES ARE ARRANGED IN PAIRS AT A DISTANCE FROM ONE ANOTHER OF AT LEAST DOUBLE THE LENGTH OF THE MICROWAVE IN FREE SPACE, IN THAT THE TUNNEL MEMBER (1) COMPRISES FOUR FURTHER OBLIQUE INTERNAL BOUNDING PLANES WHICH ARE NOT PARALLEL TO ONE ANOTHER, EACH LINKING AT AN INZONTAL AND ONE VERTICAL BOUNDING PLANE AND BEING AT AN INCLUDED ANGLE OF 20-70* TO THE VERTICAL, AND IN THAT THE MICROWAVE FEED TAKES PLACE ACROSS A PLURALITY OF CROSSSECTIONS OF THE TUNNEL MEMBER, IN SUCH A WAY THAT THE MEAN DIRECTION OF THE DENSITY OF ENERGY FLOW FED IN IS DIFFERENT AT LEAST FOR NEIGHBOURING FEED CROSS-SECTIONS.
Claim 2
Dependent Claim
136 words
MICROWAVE TREATMENT TUNNEL WITH AN ENDLESS CONVEYOR BELT WHICH IS GUIDED THROUGH AN ELECTRICAL CONDUCTIVE TUNNEL MEMBER HAVING TWO HORIZONTAL AND TWO VERTICAL INNER BOUNDING PLANES, CHARACTERIZED IN THAT THESE BOUNDING PLANES ARE ARRANGED IN PAIRS AT A DISTANCE FROM ONE ANOTHER OF AT LEAST DOUBLE THE LENGTH OF THE MICROWAVE IN FREE SPACE, IN THAT THE TUNNEL MEMBER (1) COMPRISES FOUR FURTHER OBLIQUE INTERNAL BOUNDING PLANES WHICH ARE NOT PARALLEL TO ONE ANOTHER, EACH LINKING AT AN INZONTAL AND ONE VERTICAL BOUNDING PLANE AND BEING AT AN INCLUDED ANGLE OF 20-70* TO THE VERTICAL, AND IN THAT THE MICROWAVE FEED TAKES PLACE ACROSS A PLURALITY OF CROSSSECTIONS OF THE TUNNEL MEMBER, IN SUCH A WAY THAT THE MEAN DIRECTION OF THE DENSITY OF ENERGY FLOW FED IN IS DIFFERENT AT LEAST FOR NEIGHBOURING FEED CROSS-SECTIONS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |