Patent US3351980A successfully refreshed from Google Patents.
US3351980A
Expired / Lapsed
US
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Blow molding apparatus
Assignee: Arburg GmbH and Co KG
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Filing: 1963-11-29
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Granted: 1967-11-14
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Expires: 1983-11-29
Abstract
No abstract record available.
Inventors
- 👤 Hehl Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:59
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/42; B29C49/4236; B29C49/42372; B26; B26D; B26D3/00; B26D3/16; B26D3/161; B29C49/02; B29C49/04; B29C49/4237; B65; B65H; B65H23/00; B65H23/04; B65H23/18; B65H23/188
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A BLOW MOLDING APPARATUS FOR MAKING HOLLOW ARTICLES, SAID APPARATUS COMPRISING, IN COMBINATION: (A) SUPPORT MEANS; (B) A TUBE EXTRUSION UNIT MOUNTED ON SAID SUPPORT MEANS; (C) A MOLD CLAMPING UNIT FOR CLAMPING TWO MOLD MEMBERS WHICH TOGETHER FORM A MOLD FOR RECEIVING A TUBULAR SECTION EXTRUDED BY SAID EXTRUSION UNIT, SAID MOLD CLAMPING UNIT INCORPORATING (I) FIRST PLATE MEANS FOR HOLDING ONE OF SAID TWO MOLD MEMBERS AND BEING MOUNTED ON SAID UPPORT MEANS, AND (II) SECOND PLATE MEANS FOR HOLDING THE OUTER OF THE TWO MOLD MEMBERS AND BEING MOVABLY MOUNTED ON SAID SUPPORT MEANS TOWARD AND AWAY FROM FIRST PLATE MEANS, SAID PLATE MEANS BEING ARRANGED TO CLOSE ABOUT TUBULAR SECTION EXTRUDED BY SAID EXTRUSION UNIT; AND
Claim 2
Dependent Claim
120 words
A BLOW MOLDING APPARATUS FOR MAKING HOLLOW ARTICLES, SAID APPARATUS COMPRISING, IN COMBINATION: (A) SUPPORT MEANS; (B) A TUBE EXTRUSION UNIT MOUNTED ON SAID SUPPORT MEANS; (C) A MOLD CLAMPING UNIT FOR CLAMPING TWO MOLD MEMBERS WHICH TOGETHER FORM A MOLD FOR RECEIVING A TUBULAR SECTION EXTRUDED BY SAID EXTRUSION UNIT, SAID MOLD CLAMPING UNIT INCORPORATING (I) FIRST PLATE MEANS FOR HOLDING ONE OF SAID TWO MOLD MEMBERS AND BEING MOUNTED ON SAID UPPORT MEANS, AND (II) SECOND PLATE MEANS FOR HOLDING THE OUTER OF THE TWO MOLD MEMBERS AND BEING MOVABLY MOUNTED ON SAID SUPPORT MEANS TOWARD AND AWAY FROM FIRST PLATE MEANS, SAID PLATE MEANS BEING ARRANGED TO CLOSE ABOUT TUBULAR SECTION EXTRUDED BY SAID EXTRUSION UNIT; AND
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) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |