US3089185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for manufacturing hollow plastic objects
Assignee: Individual
•
Filing: 1961-05-31
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Granted: 1963-05-14
•
Expires: 1981-05-31
Abstract
No abstract record available.
Inventors
- 👤 Settembrini Antoine Di
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:10
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/42; B29C49/58
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
148 words
A METHOD OF SHAPING HOLLOW PLASTIC OBJECTS INCLUDING THE STEPS OF: ENCLOSING A TUBULAR BLANK IN A HOT-SOFTENED CONDITION BETWEEN TWO HALF MOLDS, SUBSTANTIALLY RADIALLY SMASHING IN THE BLANK WITH A CUTTING TOOL, KEEPING THE CUTTING TOOL IN A PROTUDING POSITION INSIDE THE BLANK, INJECTING FLUID UNDER PRESSURE IN AN ANNULAR VEIN SURROUNDING SAID CUTTING TOOL IN ORDER TO ENLARGE THE HOLE WHICH HAS BEEN SMASHED IN AND TO CAUSE THE BLANK TO BE BLOWN AND APPLIED AGAINST THE WALLS OF THE HALF MOLDS, WHEREBY A RAPID COOLING OF THE BLANK IS ENSURED BY CONTINUOUS CIRCULATION OF FLUID UNDER PRESSURE IN THE ANNULAR OPENING AROUND SAID CUTTING TOOL, THEN MOVING BACK SAID CUTTING TOOL OUTSIDE THE SHAPED HOLLOW OBJECT, STOPPING THE INJECTION OF FLUID UNDER PRESSURE, ENABLING THE FLUID STILL REMAINING IN THE SHAPED HOLLOW OBJECT TO ESCAPE, SEPARATING THE HALF MOLDS AND RELEASING THE HOLLOW SHAPED OBJECT.
Claim 2
Independent Claim
148 words
A METHOD OF SHAPING HOLLOW PLASTIC OBJECTS INCLUDING THE STEPS OF: ENCLOSING A TUBULAR BLANK IN A HOT-SOFTENED CONDITION BETWEEN TWO HALF MOLDS, SUBSTANTIALLY RADIALLY SMASHING IN THE BLANK WITH A CUTTING TOOL, KEEPING THE CUTTING TOOL IN A PROTUDING POSITION INSIDE THE BLANK, INJECTING FLUID UNDER PRESSURE IN AN ANNULAR VEIN SURROUNDING SAID CUTTING TOOL IN ORDER TO ENLARGE THE HOLE WHICH HAS BEEN SMASHED IN AND TO CAUSE THE BLANK TO BE BLOWN AND APPLIED AGAINST THE WALLS OF THE HALF MOLDS, WHEREBY A RAPID COOLING OF THE BLANK IS ENSURED BY CONTINUOUS CIRCULATION OF FLUID UNDER PRESSURE IN THE ANNULAR OPENING AROUND SAID CUTTING TOOL, THEN MOVING BACK SAID CUTTING TOOL OUTSIDE THE SHAPED HOLLOW OBJECT, STOPPING THE INJECTION OF FLUID UNDER PRESSURE, ENABLING THE FLUID STILL REMAINING IN THE SHAPED HOLLOW OBJECT TO ESCAPE, SEPARATING THE HALF MOLDS AND RELEASING THE HOLLOW SHAPED OBJECT.
Claim 3
Dependent Claim
144 words
IN AN APPARATUS FOR SHAPING HOLLOW PLASTIC OBJECTS WHICH COMPRISES TWO HALF MOLDS MATING TOGETHER BY MEANS OF A JOINT PLANE, SAID HALF MOLDS EMBODYING A MOLDING CAVITY HAVING THE SHAPE OF THE OBJECTS TO BE MANUFACTURED, THE COMBINATION OF: A RECIPROCATING CUTTING TOOL HAVING THE SHAPE OF A SOLID PIN, A PASSAGEWAY PROVIDED IN ONE HALF MOLD IN A SUBSTANTIALLY RADIAL POSITION WITH REGARD TO MOLDING CAVITY AND WHEREIN SAID CUTTING TOOL IS MOVABLE, SAID PASSAGEWAY HAVING A LARGER CROSS-SECTION THAN SAID CUTTING TOOL, WHEREBY AN ADEQUATE CLEARANCE IS PROVIDED BETWEEN SAID CUTTING TOOL AND SAID PASSAGEWAY, AT LEAST ONE BLOWING DUCT EMBODIED IN ONE HALF MOLD AND HAVING PORT IN SAID CLEARANCE BETWEEN CUTTING TOOL AND ITS PASSAGEWAY, SAID PORT BEING CLOSE TO MOLDING CAVITY, MEANS FOR MOVING SAID CUTTING TOOL AND MEANS FOR SUPPLYING SAID BLOWING DUCT WITH FLUID UNDER PRESSURE.
Claim 4
Dependent Claim
144 words
IN AN APPARATUS FOR SHAPING HOLLOW PLASTIC OBJECTS WHICH COMPRISES TWO HALF MOLDS MATING TOGETHER BY MEANS OF A JOINT PLANE, SAID HALF MOLDS EMBODYING A MOLDING CAVITY HAVING THE SHAPE OF THE OBJECTS TO BE MANUFACTURED, THE COMBINATION OF: A RECIPROCATING CUTTING TOOL HAVING THE SHAPE OF A SOLID PIN, A PASSAGEWAY PROVIDED IN ONE HALF MOLD IN A SUBSTANTIALLY RADIAL POSITION WITH REGARD TO MOLDING CAVITY AND WHEREIN SAID CUTTING TOOL IS MOVABLE, SAID PASSAGEWAY HAVING A LARGER CROSS-SECTION THAN SAID CUTTING TOOL, WHEREBY AN ADEQUATE CLEARANCE IS PROVIDED BETWEEN SAID CUTTING TOOL AND SAID PASSAGEWAY, AT LEAST ONE BLOWING DUCT EMBODIED IN ONE HALF MOLD AND HAVING PORT IN SAID CLEARANCE BETWEEN CUTTING TOOL AND ITS PASSAGEWAY, SAID PORT BEING CLOSE TO MOLDING CAVITY, MEANS FOR MOVING SAID CUTTING TOOL AND MEANS FOR SUPPLYING SAID BLOWING DUCT WITH FLUID UNDER PRESSURE.
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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) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |