US3852862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roll and method of manufacture
Assignee: New Hudson Corp
•
Filing: 1973-09-04
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Granted: 1974-12-10
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Expires: 1993-09-04
Abstract
Abstract A roll cover is made by preparing a slurry of fibers and radially depositing these fibers on a cylindrical member such as a screen, building up a sleeve which may be mounted on a mandrel. The concentration of fibers in the slurry may be tailored to suit requirements, so that a sleeve may be formed with fiber concentrations which vary in a radial direction.
Inventors
- 👤 R Sukenik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:46
CPC Classifications
C; C03; C03B; C03B35/00; C03B35/14; C03B35/16; C03B35/18; C03B35/181; B; B29; B29D; B29D99/00; B29D99/0032; B29D99/0035; B65; B65G; B65G39/00; B65G39/02; B65G39/07; F; F16; F16C; F16C13/00; B29L; B29L2031/00; B29L2031/32; B29L2031/324
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
99 words
A ROLL FOR CARRYING C MARKABLE PRODUCT THROUGH A LEHR, FURNACE OR OVEN COMPRISING A RELATIVELY RIGID CYLINDIRCAL BODY AND A SEAMLESS SLEEVE ON SAID BODY AND SECURED THERETO, ALL PORTIONS OF SAID SLEEVE BETWEEN ITS INNER AND OUTER SURFACES BEING FABRICATED SOLELY OF FIBROUS MATERIAL SELECTED FROM E GROUP CONTAINING "KAOWOOL," "FIBERFRAX," AMORPHOUS SILICA, MINERAL WOOL, GLASS, QUARTZ AND METALLIC WOOL, AND A BINDER, THE CONCENTRATION OF FIBERS IN SAID SLEEVE VARYING RESILIENCY AND DIRECTION, WHEREBY CONCENTRIC ZONES OF VARYING RESILIENCY AND STRENGTH ARE CREATED, SAID ZONES BEING RADIALLY CONTINUOUS AND UNITERRUPTED BETWEEN SAID INNER AND OUTER SURFACE.
Claim 2
Dependent Claim
99 words
A ROLL FOR CARRYING C MARKABLE PRODUCT THROUGH A LEHR, FURNACE OR OVEN COMPRISING A RELATIVELY RIGID CYLINDIRCAL BODY AND A SEAMLESS SLEEVE ON SAID BODY AND SECURED THERETO, ALL PORTIONS OF SAID SLEEVE BETWEEN ITS INNER AND OUTER SURFACES BEING FABRICATED SOLELY OF FIBROUS MATERIAL SELECTED FROM E GROUP CONTAINING "KAOWOOL," "FIBERFRAX," AMORPHOUS SILICA, MINERAL WOOL, GLASS, QUARTZ AND METALLIC WOOL, AND A BINDER, THE CONCENTRATION OF FIBERS IN SAID SLEEVE VARYING RESILIENCY AND DIRECTION, WHEREBY CONCENTRIC ZONES OF VARYING RESILIENCY AND STRENGTH ARE CREATED, SAID ZONES BEING RADIALLY CONTINUOUS AND UNITERRUPTED BETWEEN SAID INNER AND OUTER SURFACE.
Claim 3
Dependent Claim
44 words
The combination according to claim 1, the sleeve having an inner zone with a fiber mix which imparts relatively high resiliency, an intermediate zone with a fiber mix having substantial insulative properties, and an outer zone with a fiber mix imparting substantial abrasion-resistant qualities.
References Cited (Backward Citations)
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US2621141A
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US2804678A
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US3515531A
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US3514312A
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US3763533A
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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) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |