US4459254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transport system for hot melt
Assignee: Nordx CDT Inc
•
Filing: 1979-12-17
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Granted: 1984-07-10
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Expires: 1999-12-17
Abstract
Abstract A method and apparatus for reclaiming a spew of hot melt thermoplastic material from an extruder head, in which granules of the termoplastic material are spread onto an endless conveyor belt to form a layer on the belt, the spew is fed from the extruder head onto the layer of granules, and both the spew and the granules are fed into a granulator.
Inventors
- 👤 Bretislav P. Zuber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:04
CPC Classifications
B; B29; B29B; B29B17/00; B29B17/0026; B29B17/0036; B29C; B29C48/00; B29C48/03; B29C48/05; B29C48/06; B29C48/25; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
92 words
A method of reclaiming a spew of hot melt thermoplastic material from an extruder head comprising the steps of: spreading granules of the plastic material onto the endless belt of a conveyor to form a layer on the belt, the temperature of the granules being sufficiently lower than the temperature of the spew to avoid adherence of the granules to the belt; feeding the spew of the thermoplastic material from the extruder head onto the layer of granules; and feeding the spew and the granules from the conveyor belt into a granulator.
References Cited (Backward Citations)
US2995775A
Cited
US3433859A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-07-10 | 1988-01-09 | 1988-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-10 | 1992-01-09 | 1992-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-10 | 1996-01-09 | 1996-07-10 | $7700.00 | Window Closed / Lapsed |