US3395283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool-setting gauges using photoelectric cells for controlling the tool position
Assignee: United Kingdom Atomic Energy Authority
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Filing: 1965-10-01
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Granted: 1968-07-30
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Expires: 1985-10-01
Abstract
No abstract record available.
Inventors
- 👤 Sefton Harry Ernest Alfred
- 👤 Brennan Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:32
CPC Classifications
B; B23; B23Q; B23Q17/00; B23Q17/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A TOOL-SETTING GAUGE COMPRISING MEANS RIGIDLY MOUNTABLE ON A MACHINE-TOOL FRAME FOR PROJECTING AN ENLARGED SHADOW OF A CUTTING-TOOL EDGE PROFILE ON TO AT LEAST ONE PHOTOELECTRIC ELEMENT, SAID PHOTOELECTRIC ELEMENT PRESENTING A PHOTOSENSITIVE AREA SUFFICIENTLY SMALL TO BE INTERSECTABLE BY ONLY A SHORT LENGTH OF SAID ENLARGED EDGE PROFILE AND BEING POSITIONABLE, WHEN PARTIALLY OBSCURED BY THE SHADOW OF SAID PROFILE, TO DEFINE A DATUM POSITION OF SAID PROFILE, AND MEANS FOR DISPLAYING THE OUTPUT OF SAID PHOTOELECTRIC ELEMENT RELATIVE TO A PRESET OUTPUT CORRESPONDING TO THE DATUM POSITION.
Claim 2
Dependent Claim
90 words
A TOOL-SETTING GAUGE COMPRISING MEANS RIGIDLY MOUNTABLE ON A MACHINE-TOOL FRAME FOR PROJECTING AN ENLARGED SHADOW OF A CUTTING-TOOL EDGE PROFILE ON TO AT LEAST ONE PHOTOELECTRIC ELEMENT, SAID PHOTOELECTRIC ELEMENT PRESENTING A PHOTOSENSITIVE AREA SUFFICIENTLY SMALL TO BE INTERSECTABLE BY ONLY A SHORT LENGTH OF SAID ENLARGED EDGE PROFILE AND BEING POSITIONABLE, WHEN PARTIALLY OBSCURED BY THE SHADOW OF SAID PROFILE, TO DEFINE A DATUM POSITION OF SAID PROFILE, AND MEANS FOR DISPLAYING THE OUTPUT OF SAID PHOTOELECTRIC ELEMENT RELATIVE TO A PRESET OUTPUT CORRESPONDING TO THE DATUM POSITION.
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) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |