Patent US3130633A successfully refreshed from Google Patents.
US3130633A
Expired / Lapsed
US
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Apparatus for fixing a point on the surface of a workpiece
Assignee: Carl Zeiss Sports Optics GmbH
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Filing: 1961-02-23
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Granted: 1964-04-28
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Expires: 1981-02-23
Abstract
No abstract record available.
Inventors
- 👤 Rantsch Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:11
CPC Classifications
B; B23; B23Q; B23Q17/00; B23Q17/24; B25; B25H; B25H7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
AN OPTICAL DEVICE FOR FIXING A POINT ON A FLAT SURFACE PORTION OF A WORKPIECE IN A MACHINE; COMPRISING A PROJECTOR FIXEDLY MOUNTED ON A MACHINE, SAID PROJECTOR HAVING A PROJECTION OBJECTIVE HAVING AN OPTICAL AXIS INCLINED TO AND INTERSECTING SAID SURFACE, A MARKER TYPE OBJECT IN SAID PROJECTOR ORIENTATED TO SAID OBJECTIVE AND SAID OPTICAL AXIS THAT THE CORRESPONDING IMAGE PLANE OF PROJECTION EXTENDS PERPENDICULARLY TO SAID WORKPIECE SURFACE, SAID LATTER SURFACE INTERCEPTING THE IMAGING RAY PATH OF SAID PROJECTOR SO THAT ONLY A PORTION OF IMAGING RAY PATH IS SHARPLY FOCUSED BY SAID OBJECTIVE AT THE INTERSECTION OF SAID FLAT SURFACE AND SAID VERTICAL IMAGE PLANE, THE PLANES OF SAID OBJECTIVE, OBJECT AND IMAGE INTERSECTING AT A SINGLE LINE PARALLEL TO SAID SURFACE AND SAID IMAGE PROJECTED FROM THE PROJECTOR INTERSECTING SAID SURFACE AT SAID POINT.
Claim 2
Dependent Claim
138 words
AN OPTICAL DEVICE FOR FIXING A POINT ON A FLAT SURFACE PORTION OF A WORKPIECE IN A MACHINE; COMPRISING A PROJECTOR FIXEDLY MOUNTED ON A MACHINE, SAID PROJECTOR HAVING A PROJECTION OBJECTIVE HAVING AN OPTICAL AXIS INCLINED TO AND INTERSECTING SAID SURFACE, A MARKER TYPE OBJECT IN SAID PROJECTOR ORIENTATED TO SAID OBJECTIVE AND SAID OPTICAL AXIS THAT THE CORRESPONDING IMAGE PLANE OF PROJECTION EXTENDS PERPENDICULARLY TO SAID WORKPIECE SURFACE, SAID LATTER SURFACE INTERCEPTING THE IMAGING RAY PATH OF SAID PROJECTOR SO THAT ONLY A PORTION OF IMAGING RAY PATH IS SHARPLY FOCUSED BY SAID OBJECTIVE AT THE INTERSECTION OF SAID FLAT SURFACE AND SAID VERTICAL IMAGE PLANE, THE PLANES OF SAID OBJECTIVE, OBJECT AND IMAGE INTERSECTING AT A SINGLE LINE PARALLEL TO SAID SURFACE AND SAID IMAGE PROJECTED FROM THE PROJECTOR INTERSECTING SAID SURFACE AT SAID POINT.
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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) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |