US3307446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gauging wall thickness of glass tubing
Assignee: OI Glass Inc
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Filing: 1962-07-11
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Granted: 1967-03-07
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Expires: 1982-07-11
Abstract
No abstract record available.
Inventors
- 👤 Hans R Rottmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:41
CPC Classifications
G; G01; G01B; G01B11/00; G01B11/02; G01B11/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
THE METHOD OF GAUGING THE WALL THICKNESS OF GLASS TUBING DURING THE CONTINUOUS FORMATION THEREOF COMPRISING THE STEPS OF DIRECTING A NARROW BEAM OF LIGHT AGAINST THE OUTSIDE OF SAID TUBING IN THE PLANE OF AND AT AN OBLIQUE ANGLE TO THE AXIS OF SAID TUBING, FOCUSING THE LIGHT REFLECTED FROM THE INNER AND OUTER SURFACES OF SAID TUBING ONTO A ROTATING DISC HAVING A PLURALITY OF PAIRS OF UNEQUALLY SPACED SLITS THEREIN, ROTATING SAID DISC, AND INDICATING WHICH PAIR OF SLITS CORRESPOND TO THE RELATIVE DISPLACEMENT OF SAID REFLECTIONS AS AN INDEX OF THE WALL THICKNESS OF SAID TUBING.
Claim 2
Independent Claim
100 words
THE METHOD OF GAUGING THE WALL THICKNESS OF GLASS TUBING DURING THE CONTINUOUS FORMATION THEREOF COMPRISING THE STEPS OF DIRECTING A NARROW BEAM OF LIGHT AGAINST THE OUTSIDE OF SAID TUBING IN THE PLANE OF AND AT AN OBLIQUE ANGLE TO THE AXIS OF SAID TUBING, FOCUSING THE LIGHT REFLECTED FROM THE INNER AND OUTER SURFACES OF SAID TUBING ONTO A ROTATING DISC HAVING A PLURALITY OF PAIRS OF UNEQUALLY SPACED SLITS THEREIN, ROTATING SAID DISC, AND INDICATING WHICH PAIR OF SLITS CORRESPOND TO THE RELATIVE DISPLACEMENT OF SAID REFLECTIONS AS AN INDEX OF THE WALL THICKNESS OF SAID TUBING.
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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |