Patent US3148582A successfully refreshed from Google Patents.
US3148582A
Expired / Lapsed
US
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Optical comparator light concentrating attachment
Assignee: Textron Inc
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Filing: 1961-03-07
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Granted: 1964-09-15
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Expires: 1981-03-07
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Coakley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:00
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/10; G01; G01N; G01N21/00; G01N21/84; G01N21/88; G01N21/8806
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN COMBINATION WITH AN OPTICAL COMPARATOR OF THE TYPE UTILIZING EPISCOPIC ILLUMINATION OF A WORKPIECE, ILLUMINATION MEANS DIRECTING A COLLIMATED BEAM OUTWARDLY OF THE COMPARATOR FROM AN OBJECTIVE LENS ALONG AN OPTICAL AXIS, A LIGHT CONCENTRATING ATTACHMENT COMPRISING: A REFLECTOR HAVING AN INNER SURFACE SHAPED AS A PARABOLOID OF REVOLUTION WITH A FOCAL POINT THERIN, A PORTION OF THE INNER SURFACE OF THE PARABOLOID OF REVOLUTION BEING REMOVED FOR THE INSERTION OF A WORKPIECE THERETHROUGH SO THAT THE WORKPIECE MAY BE POSITIONED SUBSTANTIALLY AT THE FOCAL POINT OF THE PARABOLOID OF REVOLUTION, AND SUPPORTING MEANS FOR SUPPORTING THE PARABOLOID OF REVOLUTION FROM A REFERENCE BASE OF SAID OPTICAL COMPARATOR WITH THE FOCAL POINT THEREOF SUBSTANTIALLY IN THE FOCAL PLANE OF THE COMPARATOR OBJECTIVE AND ON THE OPTICAL AXIS TO THEREBY ILLUMINATE THE OBJECT FOR VIEWING THROUGH THE OPTICAL SYSTEM OF THE COMPARATOR.
Claim 2
Dependent Claim
142 words
IN COMBINATION WITH AN OPTICAL COMPARATOR OF THE TYPE UTILIZING EPISCOPIC ILLUMINATION OF A WORKPIECE, ILLUMINATION MEANS DIRECTING A COLLIMATED BEAM OUTWARDLY OF THE COMPARATOR FROM AN OBJECTIVE LENS ALONG AN OPTICAL AXIS, A LIGHT CONCENTRATING ATTACHMENT COMPRISING: A REFLECTOR HAVING AN INNER SURFACE SHAPED AS A PARABOLOID OF REVOLUTION WITH A FOCAL POINT THERIN, A PORTION OF THE INNER SURFACE OF THE PARABOLOID OF REVOLUTION BEING REMOVED FOR THE INSERTION OF A WORKPIECE THERETHROUGH SO THAT THE WORKPIECE MAY BE POSITIONED SUBSTANTIALLY AT THE FOCAL POINT OF THE PARABOLOID OF REVOLUTION, AND SUPPORTING MEANS FOR SUPPORTING THE PARABOLOID OF REVOLUTION FROM A REFERENCE BASE OF SAID OPTICAL COMPARATOR WITH THE FOCAL POINT THEREOF SUBSTANTIALLY IN THE FOCAL PLANE OF THE COMPARATOR OBJECTIVE AND ON THE OPTICAL AXIS TO THEREBY ILLUMINATE THE OBJECT FOR VIEWING THROUGH THE OPTICAL SYSTEM OF THE COMPARATOR.
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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |