Patent US3072137A successfully refreshed from Google Patents.
US3072137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid mixing device
Assignee: —
•
Filing: —
•
Granted: 1963-01-08
•
Expires: 1980-01-08
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:00
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/02; E03C1/10; E03C1/102; E03C1/04; E03C1/046; Y; Y10; Y10T; Y10T137/00; Y10T137/3149; Y10T137/3185; Y10T137/8593; Y10T137/87571; Y10T137/87587; Y10T137/87595; Y10T137/87619; Y10T137/87627
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
IN A VACUUM BREAKER FOR A FLUID MIXING DEVICE, A CAP HAVING A PARTITION PROVIDED WITH AN APERTURE, A VALVE BODY ATTACHED TO THE CAP IN SPACED RELATION TO THE PARTITION TO PROVIDE A CHAMBER THEREBETWEEN, THE VALVE BODY HAVING OPPOSED FLAT SURFACES SPACED INWARDLY FROM THE PERIPHERY OF THE CAP TO PROVIDE AN UPWARDLY OPENING PASSAGEWAY COMMUNICATING WITH SAID CHAMBER, SAID OPPOSED FLAT SURFACES PRECLUDING BLOCKAGE OF THE PASSAGEWAY BY A PERSON GRIPPING THE SAID VALVE BODY, THE VALVE BODY PROVIDED WITH A PRIMARY PASSAGE HAVING AN INLET OPENING SPACED FROM SAID APERTURE YET ALIGNED THEREWITH, SAID PARTITION APERTURE BEING SMALLER THAN SAID INLET OPENING.
Claim 2
Dependent Claim
106 words
IN A VACUUM BREAKER FOR A FLUID MIXING DEVICE, A CAP HAVING A PARTITION PROVIDED WITH AN APERTURE, A VALVE BODY ATTACHED TO THE CAP IN SPACED RELATION TO THE PARTITION TO PROVIDE A CHAMBER THEREBETWEEN, THE VALVE BODY HAVING OPPOSED FLAT SURFACES SPACED INWARDLY FROM THE PERIPHERY OF THE CAP TO PROVIDE AN UPWARDLY OPENING PASSAGEWAY COMMUNICATING WITH SAID CHAMBER, SAID OPPOSED FLAT SURFACES PRECLUDING BLOCKAGE OF THE PASSAGEWAY BY A PERSON GRIPPING THE SAID VALVE BODY, THE VALVE BODY PROVIDED WITH A PRIMARY PASSAGE HAVING AN INLET OPENING SPACED FROM SAID APERTURE YET ALIGNED THEREWITH, SAID PARTITION APERTURE BEING SMALLER THAN SAID INLET OPENING.
References Cited (Backward Citations)
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Cited
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CH184238A
Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |