US3136532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid blending appliance
Assignee: Individual
•
Filing: 1961-09-20
•
Granted: 1964-06-09
•
Expires: 1981-09-20
Abstract
No abstract record available.
Inventors
- 👤 George A Rudnick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:57
CPC Classifications
A; A47; A47J; A47J43/00; A47J43/27; B; B01; B01F; B01F33/00; B01F33/25; B01F33/254; B01F33/50; B01F33/501; B01F33/5011
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A LIQUID BLENDING APPLIANCE, COMPRISING AN ELONGATED LIQUID RECEPTACLE, A COVER SECURED TO SAID RECEPTACLE IN CLOSING RELATIONSHIP THEREWITH, AND AN ELONGATED RESILIENT LIQUID BLENDING DEVICE LOOSELY AND RECIPROCABLY MOUNTED WITHIN SAID RECEPTACLE FOR SLIDING MOTION RELATIVELY THERETO, SAID BLENDING DEVICE COMPRISING AN ELONGATED RESILIENT COIL SPRING STRUCTURE INCLUDING A PAIR OF OPPOSITELY-TAPERED FRUSTO-CONICAL COIL SPRING PORTIONS COVERGING TOWARD ONE ANOTHER AND AN OPEN-CENTERED CONNECTING PORTION JOINING THE SMALL-DIAMETER INNER ENDS OF SAID FRUSTO-CONICAL SPRING PORTIONS, AND OPEN-CENTERED WEIGHT MEANS CONNECTED TO SAID SPRING STRUCTURE AND HAVING A CENTRAL LIQUID PASSAGEWAY EXTENDING LONGITUDINALLY THROUGH THE CENTRAL OPENING THEREOF, SAID WEIGHT MEANS COMPRISING A MULTIPLICITY OF OPEN-CENTERED HELICAL SPRING CONVOLUTIONS OF ELONGATED HOLLOW CYLINDRICAL SHAPE DISPOSED SUBSTANTIALLY COAXIAL WITH SAID FRUSTO-CONICAL SPRING PORTIONS IN SUBSTANTIALLY ABUTTING RELATIONSHIP WITH ONE ANOTHER AND INTEGRAL WITH SAID SPRING PORTIONS.
Claim 2
Dependent Claim
135 words
A LIQUID BLENDING APPLIANCE, COMPRISING AN ELONGATED LIQUID RECEPTACLE, A COVER SECURED TO SAID RECEPTACLE IN CLOSING RELATIONSHIP THEREWITH, AND AN ELONGATED RESILIENT LIQUID BLENDING DEVICE LOOSELY AND RECIPROCABLY MOUNTED WITHIN SAID RECEPTACLE FOR SLIDING MOTION RELATIVELY THERETO, SAID BLENDING DEVICE COMPRISING AN ELONGATED RESILIENT COIL SPRING STRUCTURE INCLUDING A PAIR OF OPPOSITELY-TAPERED FRUSTO-CONICAL COIL SPRING PORTIONS COVERGING TOWARD ONE ANOTHER AND AN OPEN-CENTERED CONNECTING PORTION JOINING THE SMALL-DIAMETER INNER ENDS OF SAID FRUSTO-CONICAL SPRING PORTIONS, AND OPEN-CENTERED WEIGHT MEANS CONNECTED TO SAID SPRING STRUCTURE AND HAVING A CENTRAL LIQUID PASSAGEWAY EXTENDING LONGITUDINALLY THROUGH THE CENTRAL OPENING THEREOF, SAID WEIGHT MEANS COMPRISING A MULTIPLICITY OF OPEN-CENTERED HELICAL SPRING CONVOLUTIONS OF ELONGATED HOLLOW CYLINDRICAL SHAPE DISPOSED SUBSTANTIALLY COAXIAL WITH SAID FRUSTO-CONICAL SPRING PORTIONS IN SUBSTANTIALLY ABUTTING RELATIONSHIP WITH ONE ANOTHER AND INTEGRAL WITH SAID SPRING PORTIONS.
References Cited (Backward Citations)
DE236257C
Cited
US99883A
Cited
US395303A
Cited
US475848A
Cited
US1060419A
Cited
FR712629A
Cited
US2776120A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |