Patent US3235740A successfully refreshed from Google Patents.
US3235740A
Expired / Lapsed
US
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Photoelectric inspection of containers for dirty finishes
Assignee: OI Glass Inc
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Filing: 1961-12-01
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Granted: 1966-02-15
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Expires: 1981-12-01
Abstract
No abstract record available.
Inventors
- 👤 Hans R Rottmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:40
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/84; G01N21/88; G01N21/90; G01N21/9018; G01N21/9054; G01N21/9072
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
140 words
APPARATUS FOR INSPECTING THE FINISH PORTION OF A GLASS CONTAINER FOR MOLD DOPE OR SPECKS OF DIRT COMPRISING MEANS FOR ROTATING A CONTAINER ABOUT ITS VERTICAL AXIS IN AN UPRIGHT POSITION, A CURVED MASK HAVING A NARROW VERTICAL APERTURE THEREIN, MEANS FOR POSITIONING SAID MASK WITHIN THE FINISH PORTION OF THE CONTAINER IN CLOSE PROXIMITY TO THE INNER SURFACE THEREOF, SAID MEANS FOR POSITIONING SAID MASK COMPRISING AN ELECTROMAGNET MOUNTED ABOVE THE MASK, A CROSS-HEAD CONNECTED TO SAID MASK, A SPRING NORMALLY URGING SAID MASK IN A DOWNWARD DIRECTION, MEANS FOR SELECTIVELY ENERGIZING SAID ELECTROMAGNET TO LIFT SAID MASK OUT OF SAID CONTAINER AFTER COMPLETION OF THE INSPECTION THEREOF, A LIGHT DIFFUSING MATERIAL CARRIED BY SAID MASK IN OVERLYING RELATIONSHIP TO SAID APERTURE, A LIGHT SOURCE POSITIONED OUTSIDE OF SAID CONTAINER, MEANS FOR FOCUSING SAID LIGHT SOURCE ONTO SAID APERTURE
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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |