US3395608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for measuring the roughness of the surface of a workpiece by metering the frequency output of a laser with the workpiece forming an end reflector
Assignee: Cooper Industries LLC
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Filing: 1964-06-17
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Granted: 1968-08-06
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Expires: 1984-06-17
Abstract
No abstract record available.
Inventors
- 👤 Daniel L Neill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:35
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/05; H01S3/08; H01S3/081; G; G01; G01B; G01B11/00; G01B11/30; G01B11/303; G01S; G01S17/00; G01S17/02; G01S17/06; G01S17/08; G01S17/32; H01S3/0007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A MEASUREMENT SYSTEM INCLUDING: A LASER SYSTEM COMPRISING: A STIMULATED EMISSION, ELECTROMAGNETIC RADIATION SOURCE, REFLECTING MEANS BOUNDING SAID SOURCE AT ONE END AND A WORKPIECE CAPABLE OF SOME REFLECTION BOUNDING SAID SOURCE ST THE OTHER END TO PERMIT SAID SOURCE TO EMIT A RADIATIVE ENERGY BEAM; MEANS FOR RELATIVELY MOVING SAID WORKPIECE AND SOURCE IN A CROSSWISE DIRECTION RELATIVE TO THE AXIS OF THE SOURCE; MEANS FOR DETECTING THE DIFFERENCE FREQUENCY BETWEEN BEAM ENERGY WAVES OF DIFFERENT FREQUENCIES AT WHICH RESONANCES OCCUR; AND MEANS FOR MONITORING THE DIFFERENCE FREQUENCIES DETECTED DURING SAID RELATIVE MOVEMENT.
Claim 2
Dependent Claim
94 words
A MEASUREMENT SYSTEM INCLUDING: A LASER SYSTEM COMPRISING: A STIMULATED EMISSION, ELECTROMAGNETIC RADIATION SOURCE, REFLECTING MEANS BOUNDING SAID SOURCE AT ONE END AND A WORKPIECE CAPABLE OF SOME REFLECTION BOUNDING SAID SOURCE ST THE OTHER END TO PERMIT SAID SOURCE TO EMIT A RADIATIVE ENERGY BEAM; MEANS FOR RELATIVELY MOVING SAID WORKPIECE AND SOURCE IN A CROSSWISE DIRECTION RELATIVE TO THE AXIS OF THE SOURCE; MEANS FOR DETECTING THE DIFFERENCE FREQUENCY BETWEEN BEAM ENERGY WAVES OF DIFFERENT FREQUENCIES AT WHICH RESONANCES OCCUR; AND MEANS FOR MONITORING THE DIFFERENCE FREQUENCIES DETECTED DURING SAID RELATIVE MOVEMENT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-06 | 1972-02-05 | 1972-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-06 | 1976-02-05 | 1976-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-06 | 1980-02-05 | 1980-08-06 | $7700.00 | Window Closed / Lapsed |