US2961394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding apparatus
Assignee: Anocut Engineering Co
•
Filing: 1958-12-16
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Granted: 1960-11-22
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Expires: 1978-12-16
Abstract
No abstract record available.
Inventors
- 👤 Lynn A Williams
- 👤 Jr William F Gradolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:33
CPC Classifications
B; B24; B24B; B24B49/00; B23; B23H; B23H5/00; B23H5/06; B23H5/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
GRINDING APPARATUS COMPRISING MEANS PROVIDING THE ELEMENTS OF A GRINDING MACHINE INCLUDING A ROTATABLE SPINDLE HAVING A GRINDING WHEEL THEREON AND A WORK HOLDER MOVABLE TOWARD AND AWAY FROM SAID GRINDING WHEEL FOR CARRYING A WORKPIECE THEREON INTO ENGAGEMENT WITH THE GRINDING FACE OF SAID GRINDING WHEEL, MEANS FOR CONTINUOUSLY SUPPLYING A LIQUID COOLANT TO THE GRINDING FACE OF SAID GRINDING WHEEL, SAID COOLANT INCLUDING A SUBSTANCE FOR RENDERING SAID COOLANT ELECTRICALLY CONDUCTIVE, MEANS FOR ROTATING SAID GRINDING WHEEL TO FORM SAID COOLANT INTO A FILM OF CONSTANT THICKNESS OVER AT LEAST A PORTION OF SAID FACE, A PROBE MOUNTED TO MOVE TOWARD AND AWAY FROM SAID FACE ALONG WITH SAID WORK HOLDER, SAID PROBE BEING SO POSITIONED THAT IT JUST TOUCHES THE CONSTANT THICKNESS FILM OF COOLANT ON SAID FACE WHEN SAID WORK HOLDER IS SPACED A PREDETERMINED DISTANCE FROM SAID FACE, AND SAID PROBE AND CONDUCTIVE COOLANT FORMING THE ELEMENTS OF AN ELECTRIC SWITCH WHICH IS CLOSED WHEN SAID PROBE TOUCHES SAID FILM AND IS OPEN WHEN SAID PROBE IS SPACED FROM SAID FILM.
Claim 2
Dependent Claim
176 words
GRINDING APPARATUS COMPRISING MEANS PROVIDING THE ELEMENTS OF A GRINDING MACHINE INCLUDING A ROTATABLE SPINDLE HAVING A GRINDING WHEEL THEREON AND A WORK HOLDER MOVABLE TOWARD AND AWAY FROM SAID GRINDING WHEEL FOR CARRYING A WORKPIECE THEREON INTO ENGAGEMENT WITH THE GRINDING FACE OF SAID GRINDING WHEEL, MEANS FOR CONTINUOUSLY SUPPLYING A LIQUID COOLANT TO THE GRINDING FACE OF SAID GRINDING WHEEL, SAID COOLANT INCLUDING A SUBSTANCE FOR RENDERING SAID COOLANT ELECTRICALLY CONDUCTIVE, MEANS FOR ROTATING SAID GRINDING WHEEL TO FORM SAID COOLANT INTO A FILM OF CONSTANT THICKNESS OVER AT LEAST A PORTION OF SAID FACE, A PROBE MOUNTED TO MOVE TOWARD AND AWAY FROM SAID FACE ALONG WITH SAID WORK HOLDER, SAID PROBE BEING SO POSITIONED THAT IT JUST TOUCHES THE CONSTANT THICKNESS FILM OF COOLANT ON SAID FACE WHEN SAID WORK HOLDER IS SPACED A PREDETERMINED DISTANCE FROM SAID FACE, AND SAID PROBE AND CONDUCTIVE COOLANT FORMING THE ELEMENTS OF AN ELECTRIC SWITCH WHICH IS CLOSED WHEN SAID PROBE TOUCHES SAID FILM AND IS OPEN WHEN SAID PROBE IS SPACED FROM SAID FILM.
References Cited (Backward Citations)
US2772232A
Cited
US2886026A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |