US3335744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hose connecting structure for vacuum cleaning systems
Assignee: Diebold Nixdorf Inc
•
Filing: 1965-08-25
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Granted: 1967-08-15
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Expires: 1985-08-25
Abstract
No abstract record available.
Inventors
- 👤 Stewart H Hanford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:49
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/24; A47L9/242; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6966; Y10T137/6969; Y10T137/698
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A HOSE CONNECTING STRUCTURE FOR VACUUM CLEANING INSTALLATIONS, INNER AND OUTER PLATE MEMBERS MOUNTED IN A WALL STRUCTURE, A SLEEVE JOURNALLED IN SAID OUTER PLATE MEMBER, SAID INNER PLATE MEMBER HAVING AN APERTURE IN REGISTRATION WITH SAID SLEEVE AND COMMUNICATING WITH A SOURCE OF VACUUM, A HOSE END PIECE FOR INSERTION IN SAID SLEEVE FOR FRICTIONAL ENGAGEMENT THEREWITH, A VALVE PLATE MOUNTED BETWEEN SAID PLATE MEMBERS, SAID VALVE PLATE BEING FORMED WITH AN APERTURE THEREIN, MOTION TRANSMITTING MEANS CONNECTING SAID SLEEVE AND VALVE PLATE AND OPERABLE UPON ROTATION OF SAID SLEEVE TO SHIFT SAID VALVE PLATE IN A DIRECTION TRANSVERSELY OF SAID SLEEVE TO MOVE THE APERTURE IN SAID VALVE PLATE INTO AND OUT OF REGISTRATION WITH SAID SLEEVE AND THE APERTURE IN SAID INNER PLATE MEM-
Claim 2
Dependent Claim
127 words
A HOSE CONNECTING STRUCTURE FOR VACUUM CLEANING INSTALLATIONS, INNER AND OUTER PLATE MEMBERS MOUNTED IN A WALL STRUCTURE, A SLEEVE JOURNALLED IN SAID OUTER PLATE MEMBER, SAID INNER PLATE MEMBER HAVING AN APERTURE IN REGISTRATION WITH SAID SLEEVE AND COMMUNICATING WITH A SOURCE OF VACUUM, A HOSE END PIECE FOR INSERTION IN SAID SLEEVE FOR FRICTIONAL ENGAGEMENT THEREWITH, A VALVE PLATE MOUNTED BETWEEN SAID PLATE MEMBERS, SAID VALVE PLATE BEING FORMED WITH AN APERTURE THEREIN, MOTION TRANSMITTING MEANS CONNECTING SAID SLEEVE AND VALVE PLATE AND OPERABLE UPON ROTATION OF SAID SLEEVE TO SHIFT SAID VALVE PLATE IN A DIRECTION TRANSVERSELY OF SAID SLEEVE TO MOVE THE APERTURE IN SAID VALVE PLATE INTO AND OUT OF REGISTRATION WITH SAID SLEEVE AND THE APERTURE IN SAID INNER PLATE MEM-
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) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |