Patent US3974391A successfully refreshed from Google Patents.
US3974391A
Expired / Lapsed
US
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High energy electron irradiation of flowable materials
Assignee: Telefunken Systemtechnik AG
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Filing: 1975-05-16
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Granted: 1976-08-10
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Expires: 1995-05-16
Abstract
Abstract In order to efficiently irradiate a flowable material with high energy electrons, a hollow body is disposed in a container for the material and the material is caused to flow in the form of a thin layer across a surface of the body from or to the interior of the container while the material flowing across the body surface is irradiated.
Inventors
- 👤 Bernd Peter Offermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:52
CPC Classifications
G; G21; G21K; G21K5/00; G21K5/04; H; H01; H01J; H01J33/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
105 words
Apparatus for irradiating a flowable material with high energy electrons, comprising, in combination: a container for holding a quantity of such material; a hollow conical body disposed in said container, said body being open at both ends and having its smaller-diameter opening directed upwardly; means for supplying such material to the region enclosed by said body and for causing such material to move upwardly, overflow the upper end of said body, and flow down the outer wall surface of said body; and irradiation means disposed for irradiating such material with high energy electrons as the material flows down said outer wall surface of said body.
Claim 2
Dependent Claim
105 words
Apparatus for irradiating a flowable material with high energy electrons, comprising, in combination: a container for holding a quantity of such material; a hollow conical body disposed in said container, said body being open at both ends and having its smaller-diameter opening directed upwardly; means for supplying such material to the region enclosed by said body and for causing such material to move upwardly, overflow the upper end of said body, and flow down the outer wall surface of said body; and irradiation means disposed for irradiating such material with high energy electrons as the material flows down said outer wall surface of said body.
Claim 3
Dependent Claim
17 words
An arrangement as defined in claim 1 wherein said irradiation means comprises an annular electron exit window.
References Cited (Backward Citations)
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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) | 1979-08-10 | 1980-02-09 | 1980-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-10 | 1984-02-09 | 1984-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-10 | 1988-02-09 | 1988-08-10 | $7700.00 | Window Closed / Lapsed |