Patent US3145508A successfully refreshed from Google Patents.
US3145508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for grinding intersecting annular and cylindrical surfaces
Assignee: Landis Tool Co
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Filing: 1963-02-21
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Granted: 1964-08-25
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Expires: 1983-02-21
Abstract
No abstract record available.
Inventors
- 👤 Ralph E Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:45
CPC Classifications
B; B24; B24B; B24B5/00; B24B5/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN A GRINDING MACHINE FOR GRINDING ADJACENT ANNULAR AND CYLINDRICAL PORTIONS OF A WORKPIECE, A HEADSTOCK AND A FOOTSTOCK, EACH HAVING A CENTER FOR ENGAGING AND ROTATABLY SUPPORTING A WORKPIECE, A GRINDING WHEEL, MEANS FOR FEEDING SAID GRINDING WHEEL TOWARD AND FROM SAID WORKPIECE, MEANS TO EFFECT ENDWISE MOVEMENT OF SAID CENTERS AND SAID WORKPIECE RELATIVE TO SAID GRINDING WHEEL INCLUDING A PISTON AND CYLINDER, AND MEANS OPERABLE AFTER A PREDETERMINED FEEDING MOVEMENT OF SAID GRINDING WHEEL FOR DIRECTING A MEASURED AMOUNT OF FLUID UNDER PRESSURE TO SAID CYLINDER TO REVERSE SAID ENDWISE MOVING MEANS, TO SEPARATE SAID ANNULAR PORTION OF SAID WORKPIECE FROM SAID GRINDING WHEEL A PREDETERMINED AMOUNT.
Claim 2
Dependent Claim
110 words
IN A GRINDING MACHINE FOR GRINDING ADJACENT ANNULAR AND CYLINDRICAL PORTIONS OF A WORKPIECE, A HEADSTOCK AND A FOOTSTOCK, EACH HAVING A CENTER FOR ENGAGING AND ROTATABLY SUPPORTING A WORKPIECE, A GRINDING WHEEL, MEANS FOR FEEDING SAID GRINDING WHEEL TOWARD AND FROM SAID WORKPIECE, MEANS TO EFFECT ENDWISE MOVEMENT OF SAID CENTERS AND SAID WORKPIECE RELATIVE TO SAID GRINDING WHEEL INCLUDING A PISTON AND CYLINDER, AND MEANS OPERABLE AFTER A PREDETERMINED FEEDING MOVEMENT OF SAID GRINDING WHEEL FOR DIRECTING A MEASURED AMOUNT OF FLUID UNDER PRESSURE TO SAID CYLINDER TO REVERSE SAID ENDWISE MOVING MEANS, TO SEPARATE SAID ANNULAR PORTION OF SAID WORKPIECE FROM SAID GRINDING WHEEL A PREDETERMINED AMOUNT.
References Cited (Backward Citations)
US3064395A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |