Patent US3349462A successfully refreshed from Google Patents.
US3349462A
Expired / Lapsed
US
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Air roller
Assignee: Individual
•
Filing: 1966-06-14
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Granted: 1967-10-31
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Expires: 1986-06-14
Abstract
No abstract record available.
Inventors
- 👤 Lambert H Mott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:20
CPC Classifications
F; F16; F16C; F16C32/00; F16C32/06; F16C32/0603; F16C32/0614; F16C32/0618; B; B65; B65H; B65H57/00; B65H57/14; F16C13/00; F16C13/02; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
AN AIR ROLLER FOR TEXTILE MACHINES FOR PASSING FILAMENTS THEREOVER, SAID AIR ROLLER COMPRISING, IN COMBINATION, A STEM HAVING A SHAFT PORTION, A CYLINDER WITH FLAT ENDS AND A POROUS METAL DISPOSED ABOUT SAID SHAFT POR TION OF SAID STEM FORMING A COMPARTMENT BETWEEN SAID SHAFT PORTION AND SAID CYLINDER EXTENDING SUBSTANTIALLY THE LENGTH OF SAID CYLINDER, SAID STEM CONTAINING AN AIR PASSAGE COMMUNICATING WITH SAID COMPARTMENT, SAID CYLINDER BEING FORMED FROM A METAL POWDER WITH A GRAIN SIZE LESS THAN .001" COMPACTED TO HAVE A POROSITY LESS THAN 20 PERCENT, AND A THIN SHELL HAVING AT LEAST ONE GUIDE FLANGE AND EXTENDING ABOUT SAID CYLINDER WITH A RADIAL CLEARANCE LESS THAN .001", SAID SHELL HAVING A FIRST END PLATE WITH A CENTRAL AIR ESCAPE APERTURE AND A SECOND END PLATE CONTAINING AN APERTURE THROUGH WHICH SAID STEM EXTENDS WITH A CLEARANCE TO ALLOW THE ESCAPE OF AIR, THE SUM OF THE DISTANCES BETWEEN SAID END PLATES AND THE ENDS OF SAID CYLINDER BEING GREATER THEN .005".
Claim 2
Dependent Claim
167 words
AN AIR ROLLER FOR TEXTILE MACHINES FOR PASSING FILAMENTS THEREOVER, SAID AIR ROLLER COMPRISING, IN COMBINATION, A STEM HAVING A SHAFT PORTION, A CYLINDER WITH FLAT ENDS AND A POROUS METAL DISPOSED ABOUT SAID SHAFT POR TION OF SAID STEM FORMING A COMPARTMENT BETWEEN SAID SHAFT PORTION AND SAID CYLINDER EXTENDING SUBSTANTIALLY THE LENGTH OF SAID CYLINDER, SAID STEM CONTAINING AN AIR PASSAGE COMMUNICATING WITH SAID COMPARTMENT, SAID CYLINDER BEING FORMED FROM A METAL POWDER WITH A GRAIN SIZE LESS THAN .001" COMPACTED TO HAVE A POROSITY LESS THAN 20 PERCENT, AND A THIN SHELL HAVING AT LEAST ONE GUIDE FLANGE AND EXTENDING ABOUT SAID CYLINDER WITH A RADIAL CLEARANCE LESS THAN .001", SAID SHELL HAVING A FIRST END PLATE WITH A CENTRAL AIR ESCAPE APERTURE AND A SECOND END PLATE CONTAINING AN APERTURE THROUGH WHICH SAID STEM EXTENDS WITH A CLEARANCE TO ALLOW THE ESCAPE OF AIR, THE SUM OF THE DISTANCES BETWEEN SAID END PLATES AND THE ENDS OF SAID CYLINDER BEING GREATER THEN .005".
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) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |