US3128053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Equipment for compounding materials
Assignee: Ren Plastics Inc
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Filing: 1961-05-08
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Granted: 1964-04-07
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Expires: 1981-05-08
Abstract
No abstract record available.
Inventors
- 👤 Harold J Renaud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:11
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/395; B29C48/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN APPARATUS FOR MIXING AND BLENDING MATERIALS, THE COMBINATION OF A BLENDING UNIT OF THE ROTATING SCREW TYPE HAVING A CYLINDRICAL BLENDING CHAMBER IN WHICH A DRIVEN CONVEYING AN BLENDING SCREW ROTATES, SAID CHAMBER HAVING A DISCHARGE OPENING AT ONE AXIAL END THEREOF, AN A PUMP OF THE HELICAL ROTOR-HELICAL STATOR TYPE HAVING AN INTAKE AT ONE END OF THE ROTARY AXIS OF ITS ROTOR WHICH IS IN DIRECT AND SUBSTANTIALLY COAXIAL RECEIVING RELATION TO SAID DISCHARGE OPENING OF SAID BLENDING CHAMBER, SAID PUMP HAVING MEANS DRIVING THE SAME AT THE AXIAL END THEROF OPPOSITE ITS AXIAL INTAKE END TO FORWARD MATERIAL RECEIVED AT SAID INTAKE END THEREOF THROUGH A CLOSED PATH AND UNDER PRESSURE, THE PUMP DISCHARGING RADIALLY BETWEEN SAID AXIAL ENDS.
Claim 2
Dependent Claim
123 words
IN APPARATUS FOR MIXING AND BLENDING MATERIALS, THE COMBINATION OF A BLENDING UNIT OF THE ROTATING SCREW TYPE HAVING A CYLINDRICAL BLENDING CHAMBER IN WHICH A DRIVEN CONVEYING AN BLENDING SCREW ROTATES, SAID CHAMBER HAVING A DISCHARGE OPENING AT ONE AXIAL END THEREOF, AN A PUMP OF THE HELICAL ROTOR-HELICAL STATOR TYPE HAVING AN INTAKE AT ONE END OF THE ROTARY AXIS OF ITS ROTOR WHICH IS IN DIRECT AND SUBSTANTIALLY COAXIAL RECEIVING RELATION TO SAID DISCHARGE OPENING OF SAID BLENDING CHAMBER, SAID PUMP HAVING MEANS DRIVING THE SAME AT THE AXIAL END THEROF OPPOSITE ITS AXIAL INTAKE END TO FORWARD MATERIAL RECEIVED AT SAID INTAKE END THEREOF THROUGH A CLOSED PATH AND UNDER PRESSURE, THE PUMP DISCHARGING RADIALLY BETWEEN SAID AXIAL ENDS.
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) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |