Patent US3315416A successfully refreshed from Google Patents.
US3315416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding machine for ring-like workpieces
Assignee: Hein Werner Corp
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Filing: 1964-11-27
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Granted: 1967-04-25
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Expires: 1984-11-27
Abstract
No abstract record available.
Inventors
- 👤 Francis P Healy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:51
CPC Classifications
B; B24; B24B; B24B19/00; B24B19/02; B24B19/06; B23; B23B; B23B31/00; B23B31/02; B23B31/24; B23B31/30; B23B31/305
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
A MACHINE FOR PERIPHERAL GRINDING OF A RING-LIKE WORKPIECE INCLUDING A DRIVEN GRINDING WHEEL AND A WORKHEAD WHICH ARE RELATIVELY MOVABLE, THE WORKHEAD HAVING A DRIVEN SPINDLE AND A DRIVING DISK SECURED TO ONE END THEREOF; AN ARBOR COMPRISING A CYLINDRICAL FLANGE AND A COAXIAL FORWARDLY PROJECTING SHANK, MEANS FOR EXERTING A DRIVING CONNECTION BETWEEN THE DISK AND FLANGE WHEN IN SURFACE CONTACT BUT PERMITTING LIMITED RADIAL MOVEMENT OF THE FLANGE RELATIVE TO THE DISK, A SLEEVE MOUNTED ON SAID SHANK, SAID ARBOR DEFINING A CLOSED FLUID SYSTEM FOR EXERTING OUTWARD PRESSURE ON THE SLEEVE, MEANS FOR SELECTIVELY VARYING THE PRESSURE RESPECTIVELY TO EXPAND THE SLEEVE INTO NON-SLIP ENGAGEMENT WITH THE BORE OF A WORKPIECE TO BE GROUND AND TO RELEASE SAID WORKPIECE FOR REPLACEMENT, AND A PAIR OF CIRCUMAXIALLY SPACED SHOES ENGAGING THE PERIPHERY OF THE ARBOR FLANGE TO SUPPORT THE ARBOR AND WORKPIECE ON AN AXIS INDEPENDENT OF THE SPINDLE WITH THE WORKPIECE IN ENGAGEMENT WITH THE GRINDING WHEEL AND WHILE THE SPINDLE AND DISK ROTATE THE ARBOR AND WORKPIECE ON SAID INDEPENDENT AXIS.
Claim 2
Dependent Claim
176 words
A MACHINE FOR PERIPHERAL GRINDING OF A RING-LIKE WORKPIECE INCLUDING A DRIVEN GRINDING WHEEL AND A WORKHEAD WHICH ARE RELATIVELY MOVABLE, THE WORKHEAD HAVING A DRIVEN SPINDLE AND A DRIVING DISK SECURED TO ONE END THEREOF; AN ARBOR COMPRISING A CYLINDRICAL FLANGE AND A COAXIAL FORWARDLY PROJECTING SHANK, MEANS FOR EXERTING A DRIVING CONNECTION BETWEEN THE DISK AND FLANGE WHEN IN SURFACE CONTACT BUT PERMITTING LIMITED RADIAL MOVEMENT OF THE FLANGE RELATIVE TO THE DISK, A SLEEVE MOUNTED ON SAID SHANK, SAID ARBOR DEFINING A CLOSED FLUID SYSTEM FOR EXERTING OUTWARD PRESSURE ON THE SLEEVE, MEANS FOR SELECTIVELY VARYING THE PRESSURE RESPECTIVELY TO EXPAND THE SLEEVE INTO NON-SLIP ENGAGEMENT WITH THE BORE OF A WORKPIECE TO BE GROUND AND TO RELEASE SAID WORKPIECE FOR REPLACEMENT, AND A PAIR OF CIRCUMAXIALLY SPACED SHOES ENGAGING THE PERIPHERY OF THE ARBOR FLANGE TO SUPPORT THE ARBOR AND WORKPIECE ON AN AXIS INDEPENDENT OF THE SPINDLE WITH THE WORKPIECE IN ENGAGEMENT WITH THE GRINDING WHEEL AND WHILE THE SPINDLE AND DISK ROTATE THE ARBOR AND WORKPIECE ON SAID INDEPENDENT AXIS.
References Cited (Backward Citations)
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 |