US3222059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction apparatus
Assignee: Molins Machine Co Ltd
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Filing: 1962-12-17
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Granted: 1965-12-07
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Expires: 1982-12-17
Abstract
No abstract record available.
Inventors
- 👤 Southcott Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:14
CPC Classifications
B; B65; B65H; B65H5/00; B65H5/22; B65H5/222; B65H5/226; B65C; B65C9/00; B65C9/08; B65C9/12; B65C9/14; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1744; Y10T156/1776; Y10T156/1778; Y10T156/178
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
SUCTION APPARATUS FOR TRANSFERRING ARTICLES SERIALLY FROM A FIRST POSITION TO A SECOND POSITION, COMPRISING A ROTATABLE DRUM HAVING A SERIES OF OPENINGS AT A PLURALITY OF SUCTION STATIONS AT EACH OF WHICH ONE OF SAID ARTICLES CAN BE SUCTIONALLY HELD TO THE DRUM, A COMMON SOURCE OF SUCTION, CONDUIT MEANS BY WHICH EACH SUCTION STATION CAN COMMUNICATE WITH SAID SOURCE AND INDIVIDUAL VALVE MEANS IN SAID CONDUIT BETWEEN EACH SUCTION STATION AND SAID SOURCE, EACH VALVE MEANS COMPRISING A SEAT AND A VALVE MEMBER, SAID VALVE MEMBER BEING BIASED AWAY FROM SAID SEAT TO OPEN THE VALVE TO FREE PASSAGE OF AIR, AND AN AIRLEAK PASSAGEWAY BETWEEN SAID VALVE MEMBER AND SAID SEAT AFFORDING RESTRICTED PASSAGE OF AIR WHEN THE VALVE IS CLOSED.
Claim 2
Dependent Claim
124 words
SUCTION APPARATUS FOR TRANSFERRING ARTICLES SERIALLY FROM A FIRST POSITION TO A SECOND POSITION, COMPRISING A ROTATABLE DRUM HAVING A SERIES OF OPENINGS AT A PLURALITY OF SUCTION STATIONS AT EACH OF WHICH ONE OF SAID ARTICLES CAN BE SUCTIONALLY HELD TO THE DRUM, A COMMON SOURCE OF SUCTION, CONDUIT MEANS BY WHICH EACH SUCTION STATION CAN COMMUNICATE WITH SAID SOURCE AND INDIVIDUAL VALVE MEANS IN SAID CONDUIT BETWEEN EACH SUCTION STATION AND SAID SOURCE, EACH VALVE MEANS COMPRISING A SEAT AND A VALVE MEMBER, SAID VALVE MEMBER BEING BIASED AWAY FROM SAID SEAT TO OPEN THE VALVE TO FREE PASSAGE OF AIR, AND AN AIRLEAK PASSAGEWAY BETWEEN SAID VALVE MEMBER AND SAID SEAT AFFORDING RESTRICTED PASSAGE OF AIR WHEN THE VALVE IS CLOSED.
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) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |