US3260019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding method
Assignee: Besly Cutting Tools Inc
•
Filing: 1963-04-18
•
Granted: 1966-07-12
•
Expires: 1983-04-18
Abstract
No abstract record available.
Inventors
- 👤 Sidney M Napp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:44
CPC Classifications
B; B24; B24B; B24B7/00; B24B7/10; B24B7/16; B24B7/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
IN THE METHOD OF GRINDING A PLANAR SURFACE ON A WORKPIECE, THE STEPS COMPRISING ORIENTING A WORKPIECE HAVING A PLANAR SURFACE TO BE GROUND WITH THE PLANAR SURFACE DISPOSED IN A PLANE GENERALLY COINCIDENT WITH THE GRINDING PLANE OF A ROTATING, AXIALLY FIXED GRINDING WHEEL IN A GRINDING ZONE, MOVING THE CENTER OF THE WORKPIECE LATERALLY PAST THE GRINDING WHEEL ALONG A CONTINUOUSLY ADVANCING RECTILINEAR PATH OF TRAVEL WHICH IS ORIENTED AT RIGHT ANGLES TO THE AXIS OF ROTATION OF THE GRINDING WHEEL, MAINTAINING THE PLANAR SURFACE TO BE GROUND IN THE GRINDING PLANE AS THE WORKPIECE IS ADVANCED INTO, THROUGH, AND OUT OF THE GRINDING ZONE TO A POINT IN ITS PATH TO TRAVEL AT WHICH THE WORKPIECE LEAVES CONTACT WITH THE GRINDING WHEEL, AND POSITIVELY IMPARTING ROTATIONAL MOVEMENT HAVING A CONSTANT PERIPHERAL VELOCITY TO THE WORKPIECE DURING THE TIME IT IS IN CONTACT WITH THE GRINDING WHEEL.
Claim 2
Dependent Claim
149 words
IN THE METHOD OF GRINDING A PLANAR SURFACE ON A WORKPIECE, THE STEPS COMPRISING ORIENTING A WORKPIECE HAVING A PLANAR SURFACE TO BE GROUND WITH THE PLANAR SURFACE DISPOSED IN A PLANE GENERALLY COINCIDENT WITH THE GRINDING PLANE OF A ROTATING, AXIALLY FIXED GRINDING WHEEL IN A GRINDING ZONE, MOVING THE CENTER OF THE WORKPIECE LATERALLY PAST THE GRINDING WHEEL ALONG A CONTINUOUSLY ADVANCING RECTILINEAR PATH OF TRAVEL WHICH IS ORIENTED AT RIGHT ANGLES TO THE AXIS OF ROTATION OF THE GRINDING WHEEL, MAINTAINING THE PLANAR SURFACE TO BE GROUND IN THE GRINDING PLANE AS THE WORKPIECE IS ADVANCED INTO, THROUGH, AND OUT OF THE GRINDING ZONE TO A POINT IN ITS PATH TO TRAVEL AT WHICH THE WORKPIECE LEAVES CONTACT WITH THE GRINDING WHEEL, AND POSITIVELY IMPARTING ROTATIONAL MOVEMENT HAVING A CONSTANT PERIPHERAL VELOCITY TO THE WORKPIECE DURING THE TIME IT IS IN CONTACT WITH THE GRINDING WHEEL.
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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) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |