Patent US3213513A successfully refreshed from Google Patents.
US3213513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sectional curved roll
Assignee: Mount Hope Machinery Ltd
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Filing: 1962-08-21
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Granted: 1965-10-26
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Expires: 1982-08-21
Abstract
No abstract record available.
Inventors
- 👤 John D Robertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:34
CPC Classifications
D; D06; D06C; D06C3/00; D06C3/06; D06C3/067
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A CURVED ROLL COMPRISING IN COMBINATION: A CURVED AXLE: A SERIES OF ANNULAR SPOOL ASSEMBLIES ROTATABLY MOUNTED IN AXIALLY GAPPED END-TO-END RELATION ON SAID AXLE; AND A SERIES OF ANNULAR SLEEVE SECTIONS RECEIVED OVER SAID SPOOLS IN AXIALLY ABUTTING END-TO-END RELATION WITH ONE ANOTHER, EACH GAP BETWEEN SPOOLS BEING OVERLAPPED BY A SINGLE ONE OF SAID SECTIONS; SAID SECTIONS BEING JOINED TOGETHER BY SEPARABLE SEAMS TO FORM IN ASSEMBLED RELATION A CONTINUOUS LIQUID-IMPERVIOUS SLEEVE; SAID SLEEVE BEING DIRECTLY SECURED TO CERTAIN OF SAID SPOOL ASSEMBLIES IN NARROW CIRCUMFERENTIAL REGIONS LYING ADJACENT AXIAL ENDS OF SAID SLEEVE SECTIONS AND INTERMEDIATE THE AXIAL ENDS OF SAID SPOOL ASSEMBLIES, TO FORM INDIVIDUALLY-REPLACEABLE UNITS OF SINGLE SLEEVE SECTIONS AND SPOOL ASSEMBLIES.
Claim 2
Dependent Claim
117 words
A CURVED ROLL COMPRISING IN COMBINATION: A CURVED AXLE: A SERIES OF ANNULAR SPOOL ASSEMBLIES ROTATABLY MOUNTED IN AXIALLY GAPPED END-TO-END RELATION ON SAID AXLE; AND A SERIES OF ANNULAR SLEEVE SECTIONS RECEIVED OVER SAID SPOOLS IN AXIALLY ABUTTING END-TO-END RELATION WITH ONE ANOTHER, EACH GAP BETWEEN SPOOLS BEING OVERLAPPED BY A SINGLE ONE OF SAID SECTIONS; SAID SECTIONS BEING JOINED TOGETHER BY SEPARABLE SEAMS TO FORM IN ASSEMBLED RELATION A CONTINUOUS LIQUID-IMPERVIOUS SLEEVE; SAID SLEEVE BEING DIRECTLY SECURED TO CERTAIN OF SAID SPOOL ASSEMBLIES IN NARROW CIRCUMFERENTIAL REGIONS LYING ADJACENT AXIAL ENDS OF SAID SLEEVE SECTIONS AND INTERMEDIATE THE AXIAL ENDS OF SAID SPOOL ASSEMBLIES, TO FORM INDIVIDUALLY-REPLACEABLE UNITS OF SINGLE SLEEVE SECTIONS AND SPOOL ASSEMBLIES.
References Cited (Backward Citations)
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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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |