US3676673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for irradiation in a controlled atmosphere
Assignee: RPC Industries
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Filing: 1969-08-18
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Granted: 1972-07-11
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Expires: 1989-08-18
Abstract
Abstract Apparatus which permits treatment of products with ionizing radiation in a controlled atmosphere comprises an inner chamber positioned within an outer chamber, the workpiece to be treated passing through the inner chamber. The outer chamber has a radiation-permeable window in one surface and the second chamber has means for the passage of radiation in juxtaposition with the window in the outer chamber. The apparatus may also contain means for carrying the product to be treated, as well as cooling means at the end of the radiation path.
Inventors
- 👤 George E Coleman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:09
CPC Classifications
F; F27; F27D; F27D99/00; F27D99/0073; F27D99/0075; F27B; F27B9/00; F27B9/06; F27B9/062; F27B9/066; G; G21; G21K; G21K5/00; G21K5/10; F27B9/04; F27B9/045
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
106 words
In an apparatus for treating products with ionizing radiation in a controlled atmosphere A. a first chamber having a radiation-permeable window in a surface thereof, B. a second chamber positioned within said first chamber and defining a reservoir between said chambers, C. said second chamber having spaced inlet and outlet openings for a workpiece establishing a path of travel for said workpiece and having means for the passage of radiation in juxtaposition with said radiation-permeable window, D. said first and second chambers substantially completely enclosing said path of travel between said inlet and outlet openings, and E. means for introducing gas into said path of travel.
Claim 2
Dependent Claim
106 words
In an apparatus for treating products with ionizing radiation in a controlled atmosphere A. a first chamber having a radiation-permeable window in a surface thereof, B. a second chamber positioned within said first chamber and defining a reservoir between said chambers, C. said second chamber having spaced inlet and outlet openings for a workpiece establishing a path of travel for said workpiece and having means for the passage of radiation in juxtaposition with said radiation-permeable window, D. said first and second chambers substantially completely enclosing said path of travel between said inlet and outlet openings, and E. means for introducing gas into said path of travel.
Claim 3
Dependent Claim
15 words
The apparatus of claim 1 in which said second chamber extends through said first chamber.
Claim 4
Dependent Claim
20 words
The apparatus of claim 1 in which said means for introducing gas comprises means for introducing gas into said reservoir.
Claim 5
Dependent Claim
27 words
The apparatus of claim 1 in which said means for the passage of radiation in said second chamber is an opening in one surface of said chamber.
Claim 6
Dependent Claim
113 words
In an apparatus for treating products with ionizing radiation in a controlled atmosphere A. a first chamber having a radiation-permeable window in a surface thereof, B. a second chamber positioned within and extending through said first chamber and defining a reservoir between said chambers, C. said second chamber having spaced inlet and outlet openings establishing a path of travel for a workpiece and having an opening for the passage of radiation in juxtaposition with said radiation-permeable window, D. said first and second chambers substantially completely enclosing said path of travel between said inlet and outlet openings, and E. means for introducing gas into the reservoir between said first chamber and said second chamber.
Claim 7
Dependent Claim
113 words
In an apparatus for treating products with ionizing radiation in a controlled atmosphere A. a first chamber having a radiation-permeable window in a surface thereof, B. a second chamber positioned within and extending through said first chamber and defining a reservoir between said chambers, C. said second chamber having spaced inlet and outlet openings establishing a path of travel for a workpiece and having an opening for the passage of radiation in juxtaposition with said radiation-permeable window, D. said first and second chambers substantially completely enclosing said path of travel between said inlet and outlet openings, and E. means for introducing gas into the reservoir between said first chamber and said second chamber.
Claim 8
Dependent Claim
21 words
The apparatus of claim 5 in which cooling means is provided in a portion of the surface of said second chamber.
Claim 9
Dependent Claim
19 words
The apparatus of claim 5 in which said means for introducing gas comprises a plurality of gas distribution tubes.
Claim 10
Dependent Claim
27 words
The apparatus of claim 5 in which additional means for the introduction of gas are provided at the said inlet and outlet openings in said second chamber.
Claim 11
Dependent Claim
27 words
The apparatus of claim 5 in which means for conveying the workpiece along said path of travel is provided in the lower surface of said second chamber.
Claim 12
Dependent Claim
15 words
The apparatus of claim 9 in which said means for conveying the workpiece comprises rollers.
Claim 13
Dependent Claim
129 words
In an apparatus for treating products with ionizing radiation in a controlled atmosphere A. a first chamber having a radiation-permeable window in a surface thereof, B. a second chamber positioned within said first chamber and defining a reservoir between said chambers, C. said second chamber having spaced inlet and outlet openings for a workpiece establishing a path of travel for said workpiece and having means for the passage of radiation in juxtaposition with said radiation-permeable window, D. said first and second chambers substantially completely enclosing said path of travel between said inlet and outlet openings, E. means for introducing gas into the path of travel into the path of travel of said workpiece, and F. means for passing ionizing radiation through said radiation-permeable window into said path of travel.
Claim 14
Dependent Claim
129 words
In an apparatus for treating products with ionizing radiation in a controlled atmosphere A. a first chamber having a radiation-permeable window in a surface thereof, B. a second chamber positioned within said first chamber and defining a reservoir between said chambers, C. said second chamber having spaced inlet and outlet openings for a workpiece establishing a path of travel for said workpiece and having means for the passage of radiation in juxtaposition with said radiation-permeable window, D. said first and second chambers substantially completely enclosing said path of travel between said inlet and outlet openings, E. means for introducing gas into the path of travel into the path of travel of said workpiece, and F. means for passing ionizing radiation through said radiation-permeable window into said path of travel.
Claim 15
Dependent Claim
18 words
The apparatus of claim 11 in which said means for passing ionizing radiation is an electron beam accelerator.
Claim 16
Dependent Claim
26 words
The apparatus of claim 12 in which said accelerator comprises a radiation-permeable window which is a common window with the radiation-permeable window in said first chamber.
Claim 17
Dependent Claim
25 words
The apparatus of claim 12 in which said accelerator is an electron linear accelerator operating between about 3 million and about 10 million electron volts.
Claim 18
Dependent Claim
23 words
The apparatus of claim 12 in which said accelerator is a DC accelerator operating between about 100,000 and about 4 million electron volts.
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) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |