US3225447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Micrometer measuring device having feelers
Assignee: Lufkin Rule Co
•
Filing: 1961-02-13
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Granted: 1965-12-28
•
Expires: 1981-02-13
Abstract
No abstract record available.
Inventors
- 👤 Irvin E Bryant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:21
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A MEASURING INSTRUMENT COMPRISING A SPINDLE, A FIRST LATERALLY OUTWARDLY PROJECTING FEELER OF PREDETERMINED THICKNESS, SAID SPINDLE HAVING A THREADED CONCENTRIC AXIAL BORE, THREADED MEANS CONNECTING WITH SAID FEELER RECEIVED IN SAID BORE AND REMOVABLY CONNECTING SAID FIRST FEELER TO THE FRONT END OF SAID SPINDLE, SAID SPINDLE HAVING A RADIAL FEELER CONFRONTING FACE AND SAID FIRST FEELER HAVING RADIAL FEELER CONFRONTING FACE AND SAID FIRST FEELER HAVING ENGAGING AND ALIGNING WITH SAID CONFRONTING FACE, A TUBULAR FRAME, A SECOND OUTWARDLY PROJECTIN FEELER OF PREDETERMINED THICKNESS ON THE FRONT END THEREOF, MEANS REMOVABLY CONNECTING SAID SECOND FEELER TO ONE END OF SAID TUBULAR FRAME, SAID SPINDLE PROJECTING THROUGH SAID TUBULAR FRAME WITH SAID FIRST AND SECOND FEELERS JUXTAPOSED, MEANS FOR RELATIVELY AXIALLY MOVING SAID SPINDLE AND SAID TUBULAR FRAME, AND MEANS FOR INDICATING THE RELATIVE POSITIONS OF SAID SPINDLE AND TUBULAR FRAME.
Claim 2
Dependent Claim
142 words
A MEASURING INSTRUMENT COMPRISING A SPINDLE, A FIRST LATERALLY OUTWARDLY PROJECTING FEELER OF PREDETERMINED THICKNESS, SAID SPINDLE HAVING A THREADED CONCENTRIC AXIAL BORE, THREADED MEANS CONNECTING WITH SAID FEELER RECEIVED IN SAID BORE AND REMOVABLY CONNECTING SAID FIRST FEELER TO THE FRONT END OF SAID SPINDLE, SAID SPINDLE HAVING A RADIAL FEELER CONFRONTING FACE AND SAID FIRST FEELER HAVING RADIAL FEELER CONFRONTING FACE AND SAID FIRST FEELER HAVING ENGAGING AND ALIGNING WITH SAID CONFRONTING FACE, A TUBULAR FRAME, A SECOND OUTWARDLY PROJECTIN FEELER OF PREDETERMINED THICKNESS ON THE FRONT END THEREOF, MEANS REMOVABLY CONNECTING SAID SECOND FEELER TO ONE END OF SAID TUBULAR FRAME, SAID SPINDLE PROJECTING THROUGH SAID TUBULAR FRAME WITH SAID FIRST AND SECOND FEELERS JUXTAPOSED, MEANS FOR RELATIVELY AXIALLY MOVING SAID SPINDLE AND SAID TUBULAR FRAME, AND MEANS FOR INDICATING THE RELATIVE POSITIONS OF SAID SPINDLE AND TUBULAR FRAME.
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |