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US3121979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bevel edge grinder
Assignee: Coburn Manufacturing Co Inc
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Filing: 1961-05-24
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Granted: 1964-02-25
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Expires: 1981-05-24
Abstract
No abstract record available.
Inventors
- 👤 Gray Dolph
- 👤 Suddarth Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:45
CPC Classifications
B; B24; B24B; B24B9/00; B24B9/02; B24B9/06; B24B9/08; B24B9/14; B24B9/146
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A BEVEL EDGE GRINDER COMPRISING IN COMBINATION, A BASE, A LENS CARRIER SUPPORTED ON SAID BASE, SAID CARRIER COMPRISING A FIRST CARRIAGE FOR RECIPROCATION IN A FIRST DIRECTION ACROSS SAID BASE, A SECOND CARRIAGE MOUNTED ON SAID FIRST CARRIAGE FOR RECIPROCATION IN A SECOND DIRECTION NORMAL TO SAID DIRECTION OF MOVEMENT OF SAID FIRST CARRIAGE, A PATTERN CAM FOR CONTROLLING THE MOVEMENT OF THE CARRIER IN SAID FIRST DIRECTION, AN ARM PIVOTALLY MOUNTED ABOUT A POINT ON SAID BASE, MEANS PIVOTALLY CONNECTING SAID SECOND CARRIAGE TO SAID ARM WHEREBY FOR EACH MOVEMENT IN SAID FIRST DIRECTION OF SAID FIRST CARRIAGE, A SECOND MOVEMENT IN SAID SECOND DIRECTION IS CAUSED IN SAID SECOND CARRIAGE AS CONTROLLED BY THE PIVOTING OF SAID ARM.
Claim 2
Dependent Claim
121 words
A BEVEL EDGE GRINDER COMPRISING IN COMBINATION, A BASE, A LENS CARRIER SUPPORTED ON SAID BASE, SAID CARRIER COMPRISING A FIRST CARRIAGE FOR RECIPROCATION IN A FIRST DIRECTION ACROSS SAID BASE, A SECOND CARRIAGE MOUNTED ON SAID FIRST CARRIAGE FOR RECIPROCATION IN A SECOND DIRECTION NORMAL TO SAID DIRECTION OF MOVEMENT OF SAID FIRST CARRIAGE, A PATTERN CAM FOR CONTROLLING THE MOVEMENT OF THE CARRIER IN SAID FIRST DIRECTION, AN ARM PIVOTALLY MOUNTED ABOUT A POINT ON SAID BASE, MEANS PIVOTALLY CONNECTING SAID SECOND CARRIAGE TO SAID ARM WHEREBY FOR EACH MOVEMENT IN SAID FIRST DIRECTION OF SAID FIRST CARRIAGE, A SECOND MOVEMENT IN SAID SECOND DIRECTION IS CAUSED IN SAID SECOND CARRIAGE AS CONTROLLED BY THE PIVOTING OF SAID ARM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-24 | 1967-08-26 | 1968-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-24 | 1971-08-26 | 1972-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-24 | 1975-08-26 | 1976-02-25 | $7700.00 | Window Closed / Lapsed |