Patent US3315420A successfully refreshed from Google Patents.
US3315420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Holder for abrasive disks
Assignee: Atlas Copco AB
•
Filing: 1964-11-17
•
Granted: 1967-04-25
•
Expires: 1984-11-17
Abstract
No abstract record available.
Inventors
- 👤 Moberg Karl Ake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:10
CPC Classifications
B; B24; B24D; B24D9/00; B24D9/08; B24D9/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A HOLDER FOR AN ABRASIVE DISK COMPRISING A ROTATABLE DRIVE SHAFT, A HUB CONNECTED TO SAID SHAFT FOR ROTATION THEREWITH, A FIRST ANNULAR LAYER OF RUBBER VULCANIZED TO SAID HUB AND EXTENDING LATERALLY THEREFROM TO FORM AN ANNULAR BACKING SURFACE WITH THE OUTER PORTION THEREOF COAXIAL WITH SAID SHAFT AND DISPOSED IN A PLANE PERPENDICULAR THERETO BUT SPACED AXIALLY FROM ONE END OF SAID HUB, A SECOND ANNULAR LAYER OF RUBBER VULCANIZED TO SAID HUB AND TO THE SURFACE OF THE FIRST LAYER OPPOSITE SAID PLANE, SAID FIRST LAYER HAVING A SHORE HARDNESS SUBSTANTIALLY HIGHER THAN THE SAID SECOND LAYER WHEREBY CENTRIFUGAL DISPLACEMENT OF SAID FIRST LAYER IN A DIRECTION TO DECREASE THE SPACE BETWEEN SAID PLANE AND SAID HUB IS COUNTERACTED BY CENTRIFUGAL STRETCHING OF SAID SECOND LAYER, AND LOCKING MEANS DISPOSED IN THE SPACE BETWEEN
Claim 2
Dependent Claim
137 words
A HOLDER FOR AN ABRASIVE DISK COMPRISING A ROTATABLE DRIVE SHAFT, A HUB CONNECTED TO SAID SHAFT FOR ROTATION THEREWITH, A FIRST ANNULAR LAYER OF RUBBER VULCANIZED TO SAID HUB AND EXTENDING LATERALLY THEREFROM TO FORM AN ANNULAR BACKING SURFACE WITH THE OUTER PORTION THEREOF COAXIAL WITH SAID SHAFT AND DISPOSED IN A PLANE PERPENDICULAR THERETO BUT SPACED AXIALLY FROM ONE END OF SAID HUB, A SECOND ANNULAR LAYER OF RUBBER VULCANIZED TO SAID HUB AND TO THE SURFACE OF THE FIRST LAYER OPPOSITE SAID PLANE, SAID FIRST LAYER HAVING A SHORE HARDNESS SUBSTANTIALLY HIGHER THAN THE SAID SECOND LAYER WHEREBY CENTRIFUGAL DISPLACEMENT OF SAID FIRST LAYER IN A DIRECTION TO DECREASE THE SPACE BETWEEN SAID PLANE AND SAID HUB IS COUNTERACTED BY CENTRIFUGAL STRETCHING OF SAID SECOND LAYER, AND LOCKING MEANS DISPOSED IN THE SPACE BETWEEN
References Cited (Backward Citations)
US2800751A
Cited
US2800752A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-24 | 1970-10-24 | 1971-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-24 | 1974-10-24 | 1975-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-24 | 1978-10-24 | 1979-04-25 | $7700.00 | Window Closed / Lapsed |