US3100317A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for molding hollow plastic articles
Assignee: Phillips Petroleum Co
•
Filing: 1962-01-22
•
Granted: 1963-08-13
•
Expires: 1982-01-22
Abstract
No abstract record available.
Inventors
- 👤 Dan E Perry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:42
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/42; B29C49/4242; B29C49/4247; B29C49/425
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
107 words
A METHOD FOR FORMING HOLLOW PLASTIC ARTICLES HAVING A MULTIPLICITY OF OPENINGS THEREIN WHICH COMPRISES DOWNWARDLY EXTRUDING A TUBULAR BODY INTO THE CONFINES OF AN OPEN MOLD, RAISING AND HORIZONTALLY EXTENDING WITHIN SAID TUBULAR BODY FIRST AND SECOND CORE MEMBERS SO AS TO EXTEND SAID TUBULAR BODY AT ITS LOWER END, CLOSING THE MOLD AROUND SAID EXTENDED TUBULAR BODY AND CORE MEMBERS, THEREBY CLOSING BOTH UPPER AND LOWER ENDS OF THE TUBULAR BODY AND FORMING ITS LOWER END AROUND SAID CORE MEMBERS, BLOWING THE TUBULAR BODY TO THE SHAPE OF THE MOLD, COOLING THE BLOWN ARTICLE, OPENING THE MOLD AND REMOVING THE COOLED FORMED ARTICLE FROM SAME.
Claim 2
Independent Claim
107 words
A METHOD FOR FORMING HOLLOW PLASTIC ARTICLES HAVING A MULTIPLICITY OF OPENINGS THEREIN WHICH COMPRISES DOWNWARDLY EXTRUDING A TUBULAR BODY INTO THE CONFINES OF AN OPEN MOLD, RAISING AND HORIZONTALLY EXTENDING WITHIN SAID TUBULAR BODY FIRST AND SECOND CORE MEMBERS SO AS TO EXTEND SAID TUBULAR BODY AT ITS LOWER END, CLOSING THE MOLD AROUND SAID EXTENDED TUBULAR BODY AND CORE MEMBERS, THEREBY CLOSING BOTH UPPER AND LOWER ENDS OF THE TUBULAR BODY AND FORMING ITS LOWER END AROUND SAID CORE MEMBERS, BLOWING THE TUBULAR BODY TO THE SHAPE OF THE MOLD, COOLING THE BLOWN ARTICLE, OPENING THE MOLD AND REMOVING THE COOLED FORMED ARTICLE FROM SAME.
Claim 3
Dependent Claim
107 words
APPARATUS FOR FORMING HOLLOW PLASTIC ARTICLES HAVING A PLURALITY OF OPENINGS IN SAME COMPRISING, IN COMBINATION, PARISON EXTRUSION MEANS, AN ARTICLE MOLD FORMED OF TWO SEPARABLE HALVES, MEANS FOR MOVING SAID TWO ARTICLE MOLD HALVES TOGETHER INTO A CLOSED POSITION IN FACE-TOFACE ENGAGEMENT, OPENING FORMING MEANS HAVING A PLURALITY OF CORE MEMBERS, GEAR MEANS TO MOVE SAID CORE MEMBERS SO AS TO RAISE AND LOWER SAME, MEANS TO ACTUATE SAID GEAR MEANS, MEANS TO MOVE SAID CORE MEMBERS HORIZONTALLY SO AS TO POSITION SAME IN SAID MOLD AT A POINT WHERE SAID OPENINGS ARE TO BE FORMED, AND BLOWING MEANS TO INTRODUCE BLOWING PRESSURE INTO THE PARISON.
Claim 4
Dependent Claim
107 words
APPARATUS FOR FORMING HOLLOW PLASTIC ARTICLES HAVING A PLURALITY OF OPENINGS IN SAME COMPRISING, IN COMBINATION, PARISON EXTRUSION MEANS, AN ARTICLE MOLD FORMED OF TWO SEPARABLE HALVES, MEANS FOR MOVING SAID TWO ARTICLE MOLD HALVES TOGETHER INTO A CLOSED POSITION IN FACE-TOFACE ENGAGEMENT, OPENING FORMING MEANS HAVING A PLURALITY OF CORE MEMBERS, GEAR MEANS TO MOVE SAID CORE MEMBERS SO AS TO RAISE AND LOWER SAME, MEANS TO ACTUATE SAID GEAR MEANS, MEANS TO MOVE SAID CORE MEMBERS HORIZONTALLY SO AS TO POSITION SAME IN SAID MOLD AT A POINT WHERE SAID OPENINGS ARE TO BE FORMED, AND BLOWING MEANS TO INTRODUCE BLOWING PRESSURE INTO THE PARISON.
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) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |