US3313002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for heat treating sheet material
Assignee: EIDP Inc
•
Filing: 1965-08-04
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Granted: 1967-04-11
•
Expires: 1985-08-04
Abstract
No abstract record available.
Inventors
- 👤 Wyeth Nathaniel Convers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:55
CPC Classifications
D; D06; D06C; D06C15/00; D06C15/02; B; B29; B29C; B29C59/00; B29C59/02; B29C59/04; D21; D21F; D21F5/00; B29K; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/0854
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
AN APPARATUS FOR HEAT-TREATING A CONTINUOUS LENGTH OF SHEET MATERIAL COMPRISING A COMPRESSIBLE ROLL IN ROLLING ENGAGEMENT WITH A HOLLOW DRUM AROUND WHICH IS TRAINED A FORAMINOUS BELT OVER WHICH A SHEET ADVANCE BETWEEN THE ROLL AND DRUM, SAID DRUM HAVING ITS CIRCUMFERENTIAL SURFACE INTERRUPTED BY PERFORATIONS AND SAID COMPRESSIBLE ROLL BEING URGED AGAINT THE GRUM AND DEFORMED THEREBY SO AS TO FORM AN EXTENDED NIP ZONE, AND RESIDIDNG WITHIN SAID DRUM A STATIONARY FLUID TREATMENT CHAMBER HAVING AN INLET FOR PROVISION OF HOT TREATING FLUID, THE SAID CHAMBER OPENING ON THE INNER SURFACE OF THE DRUM AND COMMUNICATING WITH DRUM PERFORATIONS IN THE NIP REGION TO PROVIDE A HEAT-TREATMENT AREA, SEALS MOUNTED ON SAID CHAMBER AND OPERATIVELY URGED AGAINST THE INNER SURFACE OF THE DRUM SO THAT THE HEAT-TREATMENT FLUID IN THE CHAMBER IS CONFINED TO THE REGION OF THE NIP, AND EXHAUST MEANS IN THE NIP REGION ADJACENT THE HEAT-TREATMENT AREA FOR CARRYING AWAY FLUID LEADAGE PAST THE SEALS AND OUTSIDE OF THE HEAT-TREATMENT AREA.
Claim 2
Independent Claim
167 words
AN APPARATUS FOR HEAT-TREATING A CONTINUOUS LENGTH OF SHEET MATERIAL COMPRISING A COMPRESSIBLE ROLL IN ROLLING ENGAGEMENT WITH A HOLLOW DRUM AROUND WHICH IS TRAINED A FORAMINOUS BELT OVER WHICH A SHEET ADVANCE BETWEEN THE ROLL AND DRUM, SAID DRUM HAVING ITS CIRCUMFERENTIAL SURFACE INTERRUPTED BY PERFORATIONS AND SAID COMPRESSIBLE ROLL BEING URGED AGAINT THE GRUM AND DEFORMED THEREBY SO AS TO FORM AN EXTENDED NIP ZONE, AND RESIDIDNG WITHIN SAID DRUM A STATIONARY FLUID TREATMENT CHAMBER HAVING AN INLET FOR PROVISION OF HOT TREATING FLUID, THE SAID CHAMBER OPENING ON THE INNER SURFACE OF THE DRUM AND COMMUNICATING WITH DRUM PERFORATIONS IN THE NIP REGION TO PROVIDE A HEAT-TREATMENT AREA, SEALS MOUNTED ON SAID CHAMBER AND OPERATIVELY URGED AGAINST THE INNER SURFACE OF THE DRUM SO THAT THE HEAT-TREATMENT FLUID IN THE CHAMBER IS CONFINED TO THE REGION OF THE NIP, AND EXHAUST MEANS IN THE NIP REGION ADJACENT THE HEAT-TREATMENT AREA FOR CARRYING AWAY FLUID LEADAGE PAST THE SEALS AND OUTSIDE OF THE HEAT-TREATMENT AREA.
References Cited (Backward Citations)
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Cited
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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) | 1970-04-10 | 1970-10-10 | 1971-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-10 | 1974-10-10 | 1975-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-10 | 1978-10-10 | 1979-04-11 | $7700.00 | Window Closed / Lapsed |