US3608380A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Testing of rod-like articles,such as cigarettes
Assignee: Molins Machine Co Ltd
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Filing: 1969-01-30
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Granted: 1971-09-28
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Expires: 1989-01-30
Abstract
Abstract WRAPPINGS OF CIGARETTES AND SIMILAR ARTICLES ARE TESTED BY CREATING A PRESSURE DIFFERENTIAL RADIALLY ACROSS EACH WRAPPING TO DETECT WHETHER OR NOT THE WRAPPING IS LEAKY. THE CIGARETTES ARE CARRIED IN FLUTES IN A CARRIER DRUM PAST CO-OPERATING CLOSURE DRUM WHICH ENCLOSES THE CIGARETTES IN THE FLUTES AT A TESTING POINT BETWEEN THE TWO DRUMS, AT WHICH POINT THE TWO DRUMS DEFINE A CHAMBER AROUND THE CIGARETTES TERMINATED AT THE ENDS OF THE CIGARETTES BY SEAL PORTIONS DEFINED PARTLY BY EACH OF THE DRUMS TO RESTRICT COMMUNICATION BETWEEN THE INTERIOR AND EXTERIOR OF A CIGARETTE VIA THE OPEN ENDS OF THE CIGARETTE WRAPPING.
Inventors
- 👤 Douglas W B Muir
- 👤 Eryk Stefan Doerman
- 👤 Robert James Hayward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:04
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/26; A; A24; A24C; A24C5/00; A24C5/32; A24C5/34; A24C5/3418
Claims Analysis
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References Cited (Backward Citations)
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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) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |