US3415264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blenders for blending two or more liquids
Assignee: Plenty and Son Ltd
•
Filing: 1963-12-05
•
Granted: 1968-12-10
•
Expires: 1983-12-05
Abstract
No abstract record available.
Inventors
- 👤 Brown Stanley Graham
- 👤 Walford Michael Arthur Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:16
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/74; B67D7/743; B01; B01F; B01F35/00; B01F35/80; B01F35/83; B01F35/831; G; G05; G05D; G05D11/00; G05D11/02; G05D11/13; G05D11/131; G05D11/132; G05D11/135; G05D11/138; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2499; Y10T137/2506; Y10T137/2514; Y10T137/2521; Y10T137/2529
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
A BLENDER FOR BLENDING TWO LIQUIDS COMPRISING: TWO VARIABLE CAPACITY PUMPS, ONE FOR EACH LIQUID; SAID PUMPS HAVING A COMMON OUTLET; A CAPACITY CONTROL DEVICE FOR CONTROLLING AT CONSTANT PRESSURE THE CAPACITY OF THE FIRST PUMP RESPONSIVE TO THE OUTLET PRESSURE OF SAID FIRST GROUP AND INCLUDING A CYLINDER AND PISTON ASSEMBLY IN WHICH A BIAS IS APPLIED TO ONE SIDE OF THE PISTON AND THE OUTLET PRESSURE OF THE FIRST PUMP IS APPLIED TO THE OTHER SIDE, THE PISTON BEING CONNECTED TO A CAPACITY ADJUSTING MEANS OF THE FIRST PUMP; AN ELECTRIC CIRCUIT INCLUDING ELECTRICAL SENSING MEANS CONNECTED TO THE CAPACITY CONTROL DEVICE OF THE FIRST PUMP AND ARRANGED TO PROVIE A SIGNAL INDICATIVE OF THE CAPACITY OF THE FIRST PUMP, AND ELECTRIC CIRCUIT MEANS INCLUDING MEANS TO VARY THE CAPACITY OF THE SECOND PUMP RESPONSIVE TO THE SAID SIGNAL AND OPERATIVELY ARRANGED TO VARY THE CAPACITY OF THE SECOND PUMP DEPENDENT UPON THE DESIRED RATIO OF THE CAPACITY OF THE SECOND PUMP TO THAT OF THE FIRST.
Claim 2
Dependent Claim
48 words
A BLENDER AS CLAIMED IN CLAIM 9 IN WHICH ELECTRICAL SENSING MEANS IS CONNECTED TO THE CAPACITY ADJUSTING MEANS OF THE SECOND PUMP AND ARRANGED TO FEED BACK TO THE ELECTRIC CIRCUIT MEANS A SIGNAL INDICATIVE OF THE POSITION OF THE CAPACITY ADJUSTING MEANS OF THE SECOND PUMP.
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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) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |