US3763533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roller for operation under high temperatures
Assignee: Hoganas AB
•
Filing: 1972-01-24
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Granted: 1973-10-09
•
Expires: 1992-01-24
Abstract
Abstract A roller for operation at a high temperature, for example in a sheet glass making apparatus, comprises a steel shaft and a cylindrical shell on said shaft. The shell consists of fibres of a glassy material, such as basalt, and an inorganic high temperature resistant binder such as silica.
Inventors
- 👤 I Blom
- 👤 P Ivarsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:28
CPC Classifications
C; C03; C03B; C03B35/00; C03B35/14; C03B35/16; C03B35/18; C03B35/189; B; B65; B65G; B65G49/00; B65G49/05; B65G49/06; B65G49/063; B65G49/064; C03B35/181; C03B35/186
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
Roller as claimed in claim 1, in which the shell consists essentially of 30-70 percent by weight of fibers and 70-30 percent by weight of colloidal SiO2.
Claim 2
Dependent Claim
21 words
Roller as claimed in claim 1, in which the surface of the shell is turned to a desired diameter and smoothness.
References Cited (Backward Citations)
US1593567A
Cited
US1795556A
Cited
US1854509A
Cited
US3317303A
Cited
DE1931802A1
Cited
US3515531A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |