US3422177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Melt elastic extruder and method
Assignee: OI Glass Inc
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Filing: 1966-09-06
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Granted: 1969-01-14
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Expires: 1986-09-06
Abstract
No abstract record available.
Inventors
- 👤 Robert T Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:51
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/47; B29C48/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A MELT ELASTIC EXTRUDER COMPRISING A HOUSING, A PLURALITY OF FIXED PLATES IN SAID HOUSING, A PLURALITY OF ROTATABLE PLATES IN SID HOUSING, EACH OF SAID ROTATABLE PLATES BEING SEPARATED FROM EACH OTHE BY ONE OF SAID FIXED PLATES TO DEFINE A MELTING CHANNEL BETWEEN EACH PAIR OF FIXED PLATES AND ROTATABLE PLATES, MEANS FOR FEEDING PARTICULATE THERMOPLASTIC MATERIAL INTO EACH OF SAID MELTING CHANNELS, A COMMON ROTATABLE SHAFT FOR SAID ROTTATOBLE PLATES AND COAXIAL THEREWITH, SAID SHAFT EXTENDING COAXIALLY THROUGH SAID FIXED PLATES, SAID SHAFT HAVING AN AXIAL HOLLOW BORE AND A PLURALITY OF RADIAL BORES IN OPEN COMMUNICATION WITH SAID AXIAL BORE, EACH OF SAID RADIAL BORES BEING IN OPEN COMMUNICATION WITH A MELTING CHANNEL, MEANS FOR ROTATING SAID SHAFT AND AN OPENING IN SAID HOUSING COAXIAL WITH SAID AXIAL BORE.
Claim 2
Dependent Claim
133 words
A MELT ELASTIC EXTRUDER COMPRISING A HOUSING, A PLURALITY OF FIXED PLATES IN SAID HOUSING, A PLURALITY OF ROTATABLE PLATES IN SID HOUSING, EACH OF SAID ROTATABLE PLATES BEING SEPARATED FROM EACH OTHE BY ONE OF SAID FIXED PLATES TO DEFINE A MELTING CHANNEL BETWEEN EACH PAIR OF FIXED PLATES AND ROTATABLE PLATES, MEANS FOR FEEDING PARTICULATE THERMOPLASTIC MATERIAL INTO EACH OF SAID MELTING CHANNELS, A COMMON ROTATABLE SHAFT FOR SAID ROTTATOBLE PLATES AND COAXIAL THEREWITH, SAID SHAFT EXTENDING COAXIALLY THROUGH SAID FIXED PLATES, SAID SHAFT HAVING AN AXIAL HOLLOW BORE AND A PLURALITY OF RADIAL BORES IN OPEN COMMUNICATION WITH SAID AXIAL BORE, EACH OF SAID RADIAL BORES BEING IN OPEN COMMUNICATION WITH A MELTING CHANNEL, MEANS FOR ROTATING SAID SHAFT AND AN OPENING IN SAID HOUSING COAXIAL WITH SAID AXIAL BORE.
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) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |