US3868202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the production of composite containers
Assignee: National Can Corp
•
Filing: 1973-08-23
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Granted: 1975-02-25
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Expires: 1993-08-23
Abstract
Abstract Apparatus for the production of composite containers by blow molding wherein an inner preformed liner is applied to a core without immediate direct contact with the heated portions of the core.
Inventors
- 👤 Emery I Valyi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:54
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/14; B29C45/14836; B29C49/00; B29C49/02; B29C49/06; B29C49/061; B29C49/064; B29C49/42; B29C49/64; B29C49/6409; B29C2049/023; B29C2949/00; B29C2949/30; B29C2949/3008; B29C2949/3009; B29C2949/3012; B29C2949/3016; B29C2949/302; B29C2949/3024; B29C2949/3026; B29C2949/3032; B29C2949/3034; B29C2949/3048; B29C2949/3056; B29C2949/3064; B29C2949/3074; B29C2949/3076; B29C2949/308; B29K; B29K2105/00; B29K2105/25; B29K2105/253
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
117 words
Apparatus for blow molding composite plastic articles comprising a parison mold, a core on which a parison is molded in said mold, a spacer adapted to carry a liner and means causing relative movement of said core, spacer and parison mold in a molding cycle for molding the parison, means applying a preformed liner to said spacer, means for axially aligning said spacer carrying said liner with the parison mold while maintaining said liner spaced in proximity from said core, means to contact said core with said liner, means placing said core, and said liner in contact with said parison mold into molding position, and means introducing plastic into said parison mold to form a composite parison.
Claim 2
Dependent Claim
117 words
Apparatus for blow molding composite plastic articles comprising a parison mold, a core on which a parison is molded in said mold, a spacer adapted to carry a liner and means causing relative movement of said core, spacer and parison mold in a molding cycle for molding the parison, means applying a preformed liner to said spacer, means for axially aligning said spacer carrying said liner with the parison mold while maintaining said liner spaced in proximity from said core, means to contact said core with said liner, means placing said core, and said liner in contact with said parison mold into molding position, and means introducing plastic into said parison mold to form a composite parison.
Claim 3
Dependent Claim
15 words
Apparatus as set forth in claim 1 in which said spacer is a neck mold.
Claim 4
Dependent Claim
19 words
Apparatus as set forth in claim 2 in which said neck mold is formed in at least two parts.
Claim 5
Dependent Claim
15 words
Apparatus as set forth in claim 1 in which said core is a blow core.
Claim 6
Dependent Claim
28 words
Apparatus as set forth in claim 2 in which said neck mold is adapted to contact the neck portion of said liner with a portion of said core.
Claim 7
Dependent Claim
13 words
Apparatus as set forth in claim 5 in which said portion is cooled.
Claim 8
Dependent Claim
29 words
Apparatus as set forth in claim 1 in which the relative movements of said core, said parison mold, said liner and said spacer take place in an axial path.
Claim 9
Dependent Claim
14 words
Apparatus according to claim 1 including a plurality of parison molds, cores and spacers.
Claim 10
Dependent Claim
20 words
Apparatus according to claim 1 including means for shifting said spacer from a liner receiving position to a molding position.
Claim 11
Dependent Claim
13 words
Apparatus according to claim 9 wherein said means for shifting rotates said spacer.
Claim 12
Dependent Claim
23 words
Apparatus according to claim 1 wherein said means for applying a preformed liner to said spacer includes a magazine for holding said liners.
Claim 13
Dependent Claim
16 words
Apparatus according to claim 1 including means to bring said liner into alignment with said core.
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) | 1978-02-24 | 1978-08-26 | 1979-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-24 | 1982-08-26 | 1983-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-24 | 1986-08-26 | 1987-02-25 | $7700.00 | Window Closed / Lapsed |