US3222722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for extruding elongated plastic bodies
Assignee: Reifenhauser KG
•
Filing: 1964-07-03
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Granted: 1965-12-14
•
Expires: 1984-07-03
Abstract
No abstract record available.
Inventors
- 👤 Friedrich A Reifenhauser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:19
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/20; B29C44/22; B29C48/00; B29C48/03; B29C48/09; B29C48/25; B29C48/30; B29C48/304; B29K; B29K2105/00; B29K2105/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
AN APPARATUS FOR EXTRUDING A FOAM FILLED TUBULAR PLASTIC BODY COMPRISING AN OUTER EXTRUDER BODY, AN INNER EXTRUDER CORE, SAID BODY AND CORE COACTING TO FORM A GENERALLY TUBULAR EXTRUSION ORIFICE, MEANS FOR FORCING HEATED THERMOPLASTIC MATERIAL THROUGH SAID ORIFICE TO FORM AN ELONGATED, TUBULAR PLASTIC BODY, A RECESS IN SAID CORE AND COTERMINOUS WITH AT LEAST A PORTION OF SAID ORIFICE, SADI RECESS OPENING TOWARD SAID TUBULAR BODY ADJACENT THE EXIT END OF SAID ORIFICE, MEANS IN SAID CORE FOR SUPPLYING AN ADHESIVE LIQUID TO SAID RECESS WHEREBY SAID ADHESIVE LIQUID IS DEPOSITED ONTO THE INNER SURFACE OF SAID BODY AS IT PASSES THROUGH SAID ORIFICE, AN INJECTION ORIFICE IN SAID CORE AND MEANS FOR FORCING A FOAMABLE PLASTIC MATERIAL THROUGH SAID INJECTION ORIFICE AND INTO SAID TUBULAR BODY WHERE IT FOAMS TO FILL SAID BODY WITH SAID ADHESIVE LIQUID BONDING SAID FOAMED PLASTIC MATERIAL TO SAID EXTRUDED TUBULAR BODY.
Claim 2
Independent Claim
151 words
AN APPARATUS FOR EXTRUDING A FOAM FILLED TUBULAR PLASTIC BODY COMPRISING AN OUTER EXTRUDER BODY, AN INNER EXTRUDER CORE, SAID BODY AND CORE COACTING TO FORM A GENERALLY TUBULAR EXTRUSION ORIFICE, MEANS FOR FORCING HEATED THERMOPLASTIC MATERIAL THROUGH SAID ORIFICE TO FORM AN ELONGATED, TUBULAR PLASTIC BODY, A RECESS IN SAID CORE AND COTERMINOUS WITH AT LEAST A PORTION OF SAID ORIFICE, SADI RECESS OPENING TOWARD SAID TUBULAR BODY ADJACENT THE EXIT END OF SAID ORIFICE, MEANS IN SAID CORE FOR SUPPLYING AN ADHESIVE LIQUID TO SAID RECESS WHEREBY SAID ADHESIVE LIQUID IS DEPOSITED ONTO THE INNER SURFACE OF SAID BODY AS IT PASSES THROUGH SAID ORIFICE, AN INJECTION ORIFICE IN SAID CORE AND MEANS FOR FORCING A FOAMABLE PLASTIC MATERIAL THROUGH SAID INJECTION ORIFICE AND INTO SAID TUBULAR BODY WHERE IT FOAMS TO FILL SAID BODY WITH SAID ADHESIVE LIQUID BONDING SAID FOAMED PLASTIC MATERIAL TO SAID EXTRUDED TUBULAR BODY.
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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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |