US3269063A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding machine
Assignee: Heald Machine Co
•
Filing: 1964-01-17
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Granted: 1966-08-30
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Expires: 1984-01-17
Abstract
No abstract record available.
Inventors
- 👤 Robert S Hahn
- 👤 George H Lockwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:43
CPC Classifications
B; B24; B24B; B24B41/00; B24B41/06; B24B41/067; B24B41/005; B24B5/00; B24B5/02; B24B5/06; Y; Y10; Y10T; Y10T82/00; Y10T82/25; Y10T82/2552; Y10T82/2562
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A GRINDING MACHINE FOR FINISHING A SURFACE OF REVOLUTION OF A WORKPIECE, COMPRISING (A) AN ABRASIVE WHEEL ADAPTED TO BE ROTATED AND TO ENGAGE THE WORKPIECE FOR FINISHING THE SAME, (B) A SUPPORTING MEMBER ADAPTED TO EXTEND AROUND A SUBSTANTIAL PORTION OF A SURFACE OF REVOLUTION OF THE WORKPIECE WITH A VARY SMALL CLEARANCE, (C) MEANS SUPPLYING A VISCOUS FLUID TO THE CLEARANCE BETWEEN THE SUPPORTING MEMBER AND THE WORKPIECE, AND (D) MEANS FOR ROTATING THE SUPPORTING MEMBER.
Claim 2
Dependent Claim
78 words
A GRINDING MACHINE FOR FINISHING A SURFACE OF REVOLUTION OF A WORKPIECE, COMPRISING (A) AN ABRASIVE WHEEL ADAPTED TO BE ROTATED AND TO ENGAGE THE WORKPIECE FOR FINISHING THE SAME, (B) A SUPPORTING MEMBER ADAPTED TO EXTEND AROUND A SUBSTANTIAL PORTION OF A SURFACE OF REVOLUTION OF THE WORKPIECE WITH A VARY SMALL CLEARANCE, (C) MEANS SUPPLYING A VISCOUS FLUID TO THE CLEARANCE BETWEEN THE SUPPORTING MEMBER AND THE WORKPIECE, AND (D) MEANS FOR ROTATING THE SUPPORTING MEMBER.
References Cited (Backward Citations)
US2635395A
Cited
US3056238A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |