US3226505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid flow interlock
Assignee: Individual
•
Filing: 1962-11-09
•
Granted: 1965-12-28
•
Expires: 1982-11-09
Abstract
No abstract record available.
Inventors
- 👤 Luther R Lucas
- 👤 Claire E Miner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:43
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/34; G01F1/36; G01F1/363; G01F1/38; G01F15/00; G01F15/005; G01P; G01P13/00; G01P13/0006; G01P13/0066; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7787; Y10T137/7789; Y10T137/7792
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
AN INTERLOCK DEVICE FOR DETECTING CHANGES IN A FLUID FLOW COMPRISING, IN COMBINATION, A HOLLOW HOUSING HAVING AN INLET AND ANU OUTLET FOR SAID FLOW, A RESILIENTLY FLEXIBLE DIAPHRAGM MOUNTED IN SAID HOUSING TRANSVERSE TO THE PATH OF SAID FLOW BETWEEN SAID INLET AND OUTLET AND DIVIDING SAID HOUSING INTO TWO CHAMBERS, A VENTURI TUBE DIFFUSER ELEMENT TRANSPIERCED THROUGH SAID DIAPHRAGM IN A CENTRAL PORTION THEREOF AND SECURED THERETO, SAID DIFFUSER HAVING A FLOW PASSAGE WITH A FIRST OPENING FACING SAID OUTLET AND A RELATIVELY SMALLER OPENING FACING SAID INLET, A VENTURI TUBE NOZZLE SECURED IN SAID HOUSING BETWEEN SAID INLET AND SAID DIFFUSER AND CARRYING FLUID FROM SAID INLET TOWARDS SAID PASSAGE OF SAID DIFFUSER, SAID NOZZLE HAVING AN OUTLET WHICH IS DIRECTED INTO SAID SMALL OPENING OF SAID DIFFUSER AND SPACED A SMALL DISTANCE THEREFROM TO TRANSMIT THE REDUCED PRESSURE IN SAID FIFFUSER TO THE UPSTREAM SIDE OF SAID DIAPHRAGM WHEREBY SAID DIAPHRAGM IS
Claim 2
Dependent Claim
156 words
AN INTERLOCK DEVICE FOR DETECTING CHANGES IN A FLUID FLOW COMPRISING, IN COMBINATION, A HOLLOW HOUSING HAVING AN INLET AND ANU OUTLET FOR SAID FLOW, A RESILIENTLY FLEXIBLE DIAPHRAGM MOUNTED IN SAID HOUSING TRANSVERSE TO THE PATH OF SAID FLOW BETWEEN SAID INLET AND OUTLET AND DIVIDING SAID HOUSING INTO TWO CHAMBERS, A VENTURI TUBE DIFFUSER ELEMENT TRANSPIERCED THROUGH SAID DIAPHRAGM IN A CENTRAL PORTION THEREOF AND SECURED THERETO, SAID DIFFUSER HAVING A FLOW PASSAGE WITH A FIRST OPENING FACING SAID OUTLET AND A RELATIVELY SMALLER OPENING FACING SAID INLET, A VENTURI TUBE NOZZLE SECURED IN SAID HOUSING BETWEEN SAID INLET AND SAID DIFFUSER AND CARRYING FLUID FROM SAID INLET TOWARDS SAID PASSAGE OF SAID DIFFUSER, SAID NOZZLE HAVING AN OUTLET WHICH IS DIRECTED INTO SAID SMALL OPENING OF SAID DIFFUSER AND SPACED A SMALL DISTANCE THEREFROM TO TRANSMIT THE REDUCED PRESSURE IN SAID FIFFUSER TO THE UPSTREAM SIDE OF SAID DIAPHRAGM WHEREBY SAID DIAPHRAGM IS
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) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |