US2758338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic measuring device
Assignee: Crown Cork and Seal Co Inc
•
Filing: 1952-04-02
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Granted: 1956-08-14
•
Expires: 1972-04-02
Abstract
No abstract record available.
Inventors
- 👤 Donald C Lynn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:41
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/46; B29C45/461
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
IN A PLASTICIZING APPARATUS FOR DISPENSING A MEASURED CHARGE OF A PLASTICIZED MASS COMPRISING IN COMBINATION A HOPPER FOR A SUPPLY OF GRANULAR THERMOPLASTIC MATERIAL, A GRANULAR MATERIAL CYLINDER CONNECTED TO SAID HOPPER AND HAVING A CHAMBER THEREIN, A PLASTICIZING CYLINDER CONNECTED TO SAID GRANULAR MATERIAL CYLINDER AND HAVING A CHAMBER THEREIN WHERE THE GRANULAR MATERIAL IS FORMED INTO THE PLASTICIZED MASS, A MEASURING CYLINDER CONNECTED TO SAID PLASTICIZING CYLINDER AND HAVING A MEASURING CHAMBER THEREIN, MEANS TO TRANSFER THE GRANULAR MATERIAL TO SAID PLASTICIZING AND MEASURING CYLINDERS, VALVE MEANS IN SAID MEASURING CYLINDER RESPONSIVE TO THE FLOW OF SAID PLASTICIZED MASS TO STOP THE FLOW OF THE PLASTICIZED MASS THEREFROM WHEN A MEASURED CHARGE HAS BEEN DISPENSED, AND MEANS OPERABLE IN TIMED SEQUENCE WITH SAID FIRST NAMED MEANS FOR OPENING SAID VALVE MEANS A PREDETERMINED DISTANCE FROM THE CLOSED POSITION SO THAT THE PLASTICIZED MASS CAN FILL SAID MEASURING CHAMBER.
Claim 2
Dependent Claim
151 words
IN A PLASTICIZING APPARATUS FOR DISPENSING A MEASURED CHARGE OF A PLASTICIZED MASS COMPRISING IN COMBINATION A HOPPER FOR A SUPPLY OF GRANULAR THERMOPLASTIC MATERIAL, A GRANULAR MATERIAL CYLINDER CONNECTED TO SAID HOPPER AND HAVING A CHAMBER THEREIN, A PLASTICIZING CYLINDER CONNECTED TO SAID GRANULAR MATERIAL CYLINDER AND HAVING A CHAMBER THEREIN WHERE THE GRANULAR MATERIAL IS FORMED INTO THE PLASTICIZED MASS, A MEASURING CYLINDER CONNECTED TO SAID PLASTICIZING CYLINDER AND HAVING A MEASURING CHAMBER THEREIN, MEANS TO TRANSFER THE GRANULAR MATERIAL TO SAID PLASTICIZING AND MEASURING CYLINDERS, VALVE MEANS IN SAID MEASURING CYLINDER RESPONSIVE TO THE FLOW OF SAID PLASTICIZED MASS TO STOP THE FLOW OF THE PLASTICIZED MASS THEREFROM WHEN A MEASURED CHARGE HAS BEEN DISPENSED, AND MEANS OPERABLE IN TIMED SEQUENCE WITH SAID FIRST NAMED MEANS FOR OPENING SAID VALVE MEANS A PREDETERMINED DISTANCE FROM THE CLOSED POSITION SO THAT THE PLASTICIZED MASS CAN FILL SAID MEASURING CHAMBER.
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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) | 1959-08-14 | 1960-02-13 | 1960-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-14 | 1964-02-13 | 1964-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-14 | 1968-02-13 | 1968-08-14 | $7700.00 | Window Closed / Lapsed |