US3911071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of production of a bottle-shaped container, filled, sealed and ready for shipment
Assignee: Pmd Entwicklungswerk fur Kunstsoffmaschinen GmbH and Co KG
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Filing: 1973-10-25
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Granted: 1975-10-07
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Expires: 1993-10-25
Abstract
Abstract A method of producing a bottle-shaped container, filled, sealed and ready for shipment, which comprises the steps of inserting a section of a thermoplastic synthetic tube into a divided blow mold with individually adjustable crown mold halves. The bottom part of the tube is then closed. Blow-molding, filling and sealing steps of the tube are performed in the mold in its still locked state to form the container. The crown mold halves are thereafter closed airtight at the head end by joining together after insertion of a tube section to be widened into the blow mold by applying a pressure medium. At least a section of the wall of the container is subjected by engagement to an outer pressure and pressed in the wall in to the inner space of the container. By the excess pressure developed thereby in the inner space of the container, the wall of the head of the container is pressed against the wall of the mold of crown mold halves.
Inventors
- 👤 Wilhelm Naumann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:16
CPC Classifications
B; B65; B65B; B65B3/00; B65B3/02; B65B3/022; B29; B29C; B29C49/00; B29C49/02; B29C49/04; B29C49/42; B29C49/4242; B29C49/4247; B29C49/48; B29C49/58; B29C49/78; B29C49/80; B29C49/46; B29C2049/4602; B29C2049/465; B29C2049/4664; B29C49/42378; B29C49/4238
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
231 words
METHOD OF PRODUCING A BOTTLE SHAPED FILLED AND SEALED CONTAINER COMPRISING THE STEPS OF: A. EXTRODUCING A PARISON OF THERMOPLASTIC MATERIAL BETWEEN A PAIR OF MOLD HALVES OF A SEPARABLE MOLD DEFINING IN A CLOSED CONDITION OF THE MOLD A BOTTLE SHAPED CAVITY HAVING A CONSTRICTED NECK-FORMING PORTION AT THE TOP OF THE MOLD CAVITY, B. CLOSING SAID MOLD ON SAID PARISON TO SEAL THE BOTTOM THEREOF AND CONFINE SAID PARISON IN SAID MOLD CAVITY C. INTRODUCING FLUID UNDER PRESSURE INTO SAID MOLD CAVITY AND SAID PARISON THROUGH THE TOP THEREOF IN SAID NECK-FORMING PORTION TO BLOW SAID PARISON AND FORCE THE SAME OUTWARDLY INTO CONTACT WITH THE WALL CAVITY TO CONFORM SAID PARISON FULLY TO SAID CAVITY AND PRODUCE A BOTTHE SHAPED CONTAINER, D. FILLING SAID CONTAINER WITH A SUBSTANCE TO BE STORED THEREIN, E. ENCLOSING A PORTION OF SAID PARISON ABOVE SAID NECK FORMING PORTION IN A HEAD-FORMING CAVITY AND SEALING SAID CONTAINER AT THE TOP THEREOF FROM THE BALANCE OF SAID PARISON WITHOUT CONFORMING THE CONTAINER TO THE CONFIGURATIONS OF SAID HEAD-FORMING CAVITY, AND F. INTRODUCING A FLUID BETWEEN SAID CONTAINER AAND SAID BOTTLESHAPED CAVITY AT THE BOTTOM THEREOF AT A PRESSURE SUFFICIENT TO DEFORM A WALL OF SAID CONTAINER INWARDLY AND PRESSURIZE FLUID WITHIN SAID CONTAINER TO DEFORM SAID CONTAINER OUTWARDLY INTO CONTACT WITH THE WALL OF SAID HEADFORMING CAVITY THEREBY PRODUCING A HEAD ON SAID CONTAINER.
Claim 2
Dependent Claim
231 words
METHOD OF PRODUCING A BOTTLE SHAPED FILLED AND SEALED CONTAINER COMPRISING THE STEPS OF: A. EXTRODUCING A PARISON OF THERMOPLASTIC MATERIAL BETWEEN A PAIR OF MOLD HALVES OF A SEPARABLE MOLD DEFINING IN A CLOSED CONDITION OF THE MOLD A BOTTLE SHAPED CAVITY HAVING A CONSTRICTED NECK-FORMING PORTION AT THE TOP OF THE MOLD CAVITY, B. CLOSING SAID MOLD ON SAID PARISON TO SEAL THE BOTTOM THEREOF AND CONFINE SAID PARISON IN SAID MOLD CAVITY C. INTRODUCING FLUID UNDER PRESSURE INTO SAID MOLD CAVITY AND SAID PARISON THROUGH THE TOP THEREOF IN SAID NECK-FORMING PORTION TO BLOW SAID PARISON AND FORCE THE SAME OUTWARDLY INTO CONTACT WITH THE WALL CAVITY TO CONFORM SAID PARISON FULLY TO SAID CAVITY AND PRODUCE A BOTTHE SHAPED CONTAINER, D. FILLING SAID CONTAINER WITH A SUBSTANCE TO BE STORED THEREIN, E. ENCLOSING A PORTION OF SAID PARISON ABOVE SAID NECK FORMING PORTION IN A HEAD-FORMING CAVITY AND SEALING SAID CONTAINER AT THE TOP THEREOF FROM THE BALANCE OF SAID PARISON WITHOUT CONFORMING THE CONTAINER TO THE CONFIGURATIONS OF SAID HEAD-FORMING CAVITY, AND F. INTRODUCING A FLUID BETWEEN SAID CONTAINER AAND SAID BOTTLESHAPED CAVITY AT THE BOTTOM THEREOF AT A PRESSURE SUFFICIENT TO DEFORM A WALL OF SAID CONTAINER INWARDLY AND PRESSURIZE FLUID WITHIN SAID CONTAINER TO DEFORM SAID CONTAINER OUTWARDLY INTO CONTACT WITH THE WALL OF SAID HEADFORMING CAVITY THEREBY PRODUCING A HEAD ON SAID CONTAINER.
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) | 1978-10-06 | 1979-04-07 | 1979-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-06 | 1983-04-07 | 1983-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-06 | 1987-04-07 | 1987-10-07 | $7700.00 | Window Closed / Lapsed |