Patent US3357039A successfully refreshed from Google Patents.
US3357039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum system control
Assignee: Individual
•
Filing: 1965-11-29
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Granted: 1967-12-12
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Expires: 1985-11-29
Abstract
No abstract record available.
Inventors
- 👤 Norman G Hayward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:25
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/60; A; A47; A47L; A47L5/00; A47L5/12; A47L5/22; A47L5/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
187 words
IN A VACUUM SYSTEM WHICH INCLUDES AT LEAST ONE SUCTION DUCT HAVING A TERMINAL END AND AN ELECTRICAL CONTROL FOR SAID SYSTEM, A COMBINED NOZZLE OUTLET AND CONTROL COMPRISING: A PLATE ASSEMBLY MOUNTED ADJACENT THE TERMINAL END OF THE DUCT; A CONDUIT ELEMENT CONNECTED TO THE PLATE ASSEMBLY AND TO THE TERMINAL END OF THE DUCT; ROD MEANS OPERATIVELY ASSOCIATED WITH THE CONDUIT ELEMENT; COUPLING MEANS ON THE PLATE ASSEMBLY FOR AN IMPLEMENT, THE IMPLEMENT BEING POSITIONED FOR FLUID COMMUNICATION AND THE CONDUIT ELEMENT AND THE DUCT; VALVE MEANS CONNECTED TO THE ROD MEANS FOR SELECTIVELY OPENING AND CLOSING THE CONDUIT; ELECTRICAL SWITCH MEANS OPERATIVELY ASSOCIATED WITH THE ROD MEANS; A CONTROL LEVER CONNECTED TO THE ROD MEANS; SPRING MEANS CONNECTED TO THE CONTROL LEVER TO CONSTANTLY BIAS THE LEVER IN ONE DIRECTION TO A POSITION WHEREIN THE SWITCH MEANS IS ACTIVATED AND THE ELECTRICAL CONTROL OPERATES THE SYSTEM, AND WHEREIN THE VALVE MEANS IS OPENED; AND AN IMPLEMENT HANGER ON THE CONTROL LEVER, THE ENGAGEMENT OF AN IMPLEMENT ON SAID HANGER MOVING THE LEVER AGAINST THE SPRING BIAS TO DEACTIVATE THE CONTROL AND CLOSE THE VALVE.
Claim 2
Dependent Claim
187 words
IN A VACUUM SYSTEM WHICH INCLUDES AT LEAST ONE SUCTION DUCT HAVING A TERMINAL END AND AN ELECTRICAL CONTROL FOR SAID SYSTEM, A COMBINED NOZZLE OUTLET AND CONTROL COMPRISING: A PLATE ASSEMBLY MOUNTED ADJACENT THE TERMINAL END OF THE DUCT; A CONDUIT ELEMENT CONNECTED TO THE PLATE ASSEMBLY AND TO THE TERMINAL END OF THE DUCT; ROD MEANS OPERATIVELY ASSOCIATED WITH THE CONDUIT ELEMENT; COUPLING MEANS ON THE PLATE ASSEMBLY FOR AN IMPLEMENT, THE IMPLEMENT BEING POSITIONED FOR FLUID COMMUNICATION AND THE CONDUIT ELEMENT AND THE DUCT; VALVE MEANS CONNECTED TO THE ROD MEANS FOR SELECTIVELY OPENING AND CLOSING THE CONDUIT; ELECTRICAL SWITCH MEANS OPERATIVELY ASSOCIATED WITH THE ROD MEANS; A CONTROL LEVER CONNECTED TO THE ROD MEANS; SPRING MEANS CONNECTED TO THE CONTROL LEVER TO CONSTANTLY BIAS THE LEVER IN ONE DIRECTION TO A POSITION WHEREIN THE SWITCH MEANS IS ACTIVATED AND THE ELECTRICAL CONTROL OPERATES THE SYSTEM, AND WHEREIN THE VALVE MEANS IS OPENED; AND AN IMPLEMENT HANGER ON THE CONTROL LEVER, THE ENGAGEMENT OF AN IMPLEMENT ON SAID HANGER MOVING THE LEVER AGAINST THE SPRING BIAS TO DEACTIVATE THE CONTROL AND CLOSE THE VALVE.
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) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |