Patent US3299580A successfully refreshed from Google Patents.
US3299580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal grinding machines
Assignee: Ulvsunda Verkstader AB
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Filing: 1964-04-22
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Granted: 1967-01-24
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Expires: 1984-04-22
Abstract
No abstract record available.
Inventors
- 👤 Gluchowicz Gerszon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:42
CPC Classifications
B; B24; B24B; B24B49/00; B24B49/02; B24B49/04; B24B49/045; B24B5/00; B24B5/02; B24B5/06; B24B5/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
AN INTERNAL GRINDING MACHINE COMPRISING A SUPPORT, A CHUCK FOR CARRYING A WORK-PIECE, AND A GRINDING WHEEL MOUNTED ON A SPINDLE IN A BRACKET, BOTH SAID CHUCK AND SAID GRINDING WHEEL BEING MOUNTED ON SAID SUPPORT TO BE ROTATABLE AND RELATIVELY RECIPROCALLY DISPLACEABLE AXIALLY AS WELL AS RADIALLY FOR GRINDING AN INTERNAL FACE OF THE WORK PIECE, A SHARPENING TOOL ADAPTED TO DRESS THE GRINDING WHEEL AT PREDETERMINED INTERVALS, AND A PNEUMATIC MEASURING INSTRUMENT PROVIDED WITH A GAUGE HEAD HAVING OUTLET NOZZLES FOR A PRESSURE MEDIUM, SAID HEAD BEING AXIALLY RECIPROCABLE IN AND OUT OF THE WORK-PIECE WITH A GAP BETWEEN THE HEAD AND SAID INTERNAL FACE AFFECTING THE PRESSURE OF SAID PRESSURE MEDIUM, THE IMPROVEMENT THAT THE MEASURING INSTRUMENT IS DISPOSED BETWEEN SAID GRINDING WHEEL AND SAID BRACKET WITH THE GAUGE HEAD PARTIALLY EMBRACING THE SPINDLE.
Claim 2
Dependent Claim
137 words
AN INTERNAL GRINDING MACHINE COMPRISING A SUPPORT, A CHUCK FOR CARRYING A WORK-PIECE, AND A GRINDING WHEEL MOUNTED ON A SPINDLE IN A BRACKET, BOTH SAID CHUCK AND SAID GRINDING WHEEL BEING MOUNTED ON SAID SUPPORT TO BE ROTATABLE AND RELATIVELY RECIPROCALLY DISPLACEABLE AXIALLY AS WELL AS RADIALLY FOR GRINDING AN INTERNAL FACE OF THE WORK PIECE, A SHARPENING TOOL ADAPTED TO DRESS THE GRINDING WHEEL AT PREDETERMINED INTERVALS, AND A PNEUMATIC MEASURING INSTRUMENT PROVIDED WITH A GAUGE HEAD HAVING OUTLET NOZZLES FOR A PRESSURE MEDIUM, SAID HEAD BEING AXIALLY RECIPROCABLE IN AND OUT OF THE WORK-PIECE WITH A GAP BETWEEN THE HEAD AND SAID INTERNAL FACE AFFECTING THE PRESSURE OF SAID PRESSURE MEDIUM, THE IMPROVEMENT THAT THE MEASURING INSTRUMENT IS DISPOSED BETWEEN SAID GRINDING WHEEL AND SAID BRACKET WITH THE GAUGE HEAD PARTIALLY EMBRACING THE SPINDLE.
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) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |