US3357598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable liquid dispenser
Assignee: Dole Valve Co
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Filing: 1965-09-21
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Granted: 1967-12-12
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Expires: 1985-09-21
Abstract
No abstract record available.
Inventors
- 👤 Elroy J Kraft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:56
CPC Classifications
B; B67; B67D; B67D1/00; B67D1/0042; B67D1/0043; B67D1/0044; B67D1/0045; B67D1/08; B67D1/0801; B67D2001/0822; B67D2001/0825; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87571; Y10T137/87587; Y10T137/87595; Y10T137/87619
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
219 words
A DISPENSER FOR PROPORTIONING AND MIXING LIQUIDS OF DIFFERENT VISCOSITIES COMPRISING: A PROPORTIONER BODY HAVING AN INLET FOR CONNECTION TO A SOURCE OF PRESSURIZED LIQUID, AN OUTLET EXTENDING THEREFRON, AND A MIXING PASSAGEWAY CONNECTING SAID INLET AND SAID OUTLET, SAID MIXING PASSAGEWAY HAVING A STRAIGHT THROAT PORTION, A PORTION CONVERGING IN A DOWNSTREAM DIRECTION TO SAID THROAT PORTION, AND A PORTION DIVERGING IN A DOWNSTREAM DIRECTION FROM SAID THROAT PORTION, A SUCTION TUBE DISPOSED WITHIN SAID MIXING PASSAGEWAY IN SPACED RELATION FROM THE INNER WALLS THEREOF AND TERMINATING WITHIN SAID CONVERGING PORTION AT THE VICINITY OF SAID THROAT, SAID SUCTION TUBE EXTENDING THROUGH A WALL OF SAID MIXING PASSAGEWAY FOR BEING IMMERSED WITHIN A LIQUID CHAMBER APART FROM SAID SOURCE OF PRESSURIZED LIQUID, MEANS APPLYING SAID SOURCE OF PRESSURIZED LIQUID TO SAID MIXING PASSAGEWAY ALONG THE EXTERIOR OF SAID SUCTION TUBE AND THROUGH SAID THROAT FOR CREATING A SUCTION ZONE AT THE END OF SAID SUCTION TUBE TO DRAW LIQUID THERETHROUGH FROM SAID LIQUID CHAMBER, A POST-MIXING PASSAGEWAY CONDUCTING A PORTION OF SAID SOURCE OF PRESSURIZED LIQUID FROM SAID MIXING PASSAGEWAY AT A POINT UPSTREAM OF SAID CONVERGING THROAT TO SAID MIXING PASSAGEWAY AT A POINT DOWNSTREAM OF SAID DIVERGING THROAT, VALVE MEANS DISPOSED WITHIN SAID POST-MIXING PASSAGEWAY FOR CONTROLLING THE RATE OF FLOW OF SAID PRESSURIZED LIQUID THERETHROUGH.
Claim 2
Dependent Claim
219 words
A DISPENSER FOR PROPORTIONING AND MIXING LIQUIDS OF DIFFERENT VISCOSITIES COMPRISING: A PROPORTIONER BODY HAVING AN INLET FOR CONNECTION TO A SOURCE OF PRESSURIZED LIQUID, AN OUTLET EXTENDING THEREFRON, AND A MIXING PASSAGEWAY CONNECTING SAID INLET AND SAID OUTLET, SAID MIXING PASSAGEWAY HAVING A STRAIGHT THROAT PORTION, A PORTION CONVERGING IN A DOWNSTREAM DIRECTION TO SAID THROAT PORTION, AND A PORTION DIVERGING IN A DOWNSTREAM DIRECTION FROM SAID THROAT PORTION, A SUCTION TUBE DISPOSED WITHIN SAID MIXING PASSAGEWAY IN SPACED RELATION FROM THE INNER WALLS THEREOF AND TERMINATING WITHIN SAID CONVERGING PORTION AT THE VICINITY OF SAID THROAT, SAID SUCTION TUBE EXTENDING THROUGH A WALL OF SAID MIXING PASSAGEWAY FOR BEING IMMERSED WITHIN A LIQUID CHAMBER APART FROM SAID SOURCE OF PRESSURIZED LIQUID, MEANS APPLYING SAID SOURCE OF PRESSURIZED LIQUID TO SAID MIXING PASSAGEWAY ALONG THE EXTERIOR OF SAID SUCTION TUBE AND THROUGH SAID THROAT FOR CREATING A SUCTION ZONE AT THE END OF SAID SUCTION TUBE TO DRAW LIQUID THERETHROUGH FROM SAID LIQUID CHAMBER, A POST-MIXING PASSAGEWAY CONDUCTING A PORTION OF SAID SOURCE OF PRESSURIZED LIQUID FROM SAID MIXING PASSAGEWAY AT A POINT UPSTREAM OF SAID CONVERGING THROAT TO SAID MIXING PASSAGEWAY AT A POINT DOWNSTREAM OF SAID DIVERGING THROAT, VALVE MEANS DISPOSED WITHIN SAID POST-MIXING PASSAGEWAY FOR CONTROLLING THE RATE OF FLOW OF SAID PRESSURIZED LIQUID THERETHROUGH.
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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 |