US3564238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Irradiation apparatus in combination web handling means
Assignee: Deering Milliken Research Corp
•
Filing: 1967-05-08
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Granted: 1971-02-16
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Expires: 1987-05-08
Abstract
Abstract A system for continuously irradiating chemically treated material which employs an improved arrangement for permitting multiple passes of the treated material through the irradiation field while the distance between the layers of treated material passing through the field is maintained to improve the efficiency of the irradiation process. Ionizing irradiation apparatus is also included.
Inventors
- 👤 William J Martin
- 👤 Charles R Ruppe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:06
CPC Classifications
B; B29; B29C; B29C71/00; B29C71/04; G; G21; G21K; G21K5/00; G21K5/10; B29C35/00; B29C35/02; B29C35/08; B29C35/0866; B29C2035/0877; B29L; B29L2031/00; B29L2031/34; B29L2031/3462
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
22 words
The structure of claim 1 wherein at least one set of rolls in each bank contains only an odd number of rolls.
Claim 2
Dependent Claim
32 words
The structure of claim 2 wherein said sets with an odd number of rolls contain the first roll and the last roll to be contacted by said web material in said zone.
Claim 3
Dependent Claim
28 words
The structure of claim 1 wherein the axis of each roll in each set is vertically displaced from the next adjacent roll in the set approximately one-half inch.
Claim 4
Dependent Claim
25 words
The structure of claim 1 wherein said festoon arrangement contains sufficient rolls to provide at least five passes of said web material through said zone.
Claim 5
Dependent Claim
215 words
Apparatus for irradiating a web of chemically treated material comprising; means forming a treatment chamber, an electron scanning beam apparatus projecting into said chamber, a festoon arrangement in said chamber below said scanning beam apparatus, means supplying a web of material to said festoon means taking said web of material away from said festoon arrangement, said festoon arrangement having at least two banks of roll members, said web material passing alternately from one bank to the other bank during passage through said chamber, said banks of roll members being so arranged that the space between all adjacent passes of web material is substantially equal, said banks of roll members each having at least two sets of rolls, each of said rolls having an axis of rotation, means mounting the axes of the rolls of one set in each bank so that each axis in the direction of travel of said web material is further away from the center of said chamber than the preceding axis in said set and means mounting the axes of the other sets of rolls in each bank so that in the direction of travel of said web material each axis in said other sets are closer to the center of said chamber than the preceding axis in the respective set.
Claim 6
Dependent Claim
22 words
The structure of claim 6 wherein at least one set of rolls in each bank contains only an odd number of rolls.
Claim 7
Dependent Claim
32 words
The structure of claim 7 wherein said sets with an odd number of rolls contain the first roll and the last roll to be contacted by said web material in said chamber.
Claim 8
Dependent Claim
28 words
The structure of claim 6 wherein the axis of each roll in each set is vertically displaced from the next adjacent roll in the set approximately one-half inch.
Claim 9
Dependent Claim
25 words
The structure of claim 6 wherein said festoon arrangement contains sufficient rolls to provide at least five passes of said web material through said chamber.
References Cited (Backward Citations)
US2858442A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |