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US3737259A
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US
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Apparatus for making composite plastic articles
Assignee: National Can Corp
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Filing: 1971-12-23
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Granted: 1973-06-05
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Expires: 1991-12-23
Abstract
Abstract Apparatus for making pressure molded composite parisons and blown articles therefrom wherein preformed sleeves are placed mechanically over the blow cores used for molding the parisons.
Inventors
- 👤 E Valyi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:42
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/22; A; A47; A47G; A47G1/00; A47G1/06; A47G1/10; A47G1/101; B29C2949/00; B29C2949/30; B29C2949/3008; B29C2949/3009; B29C2949/3016; B29C2949/302; B29C2949/3024; B29C2949/3026; B29C2949/3032; B29C2949/3064
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
143 words
Apparatus for pressure blow molding plastic articles comprising a core, a parison mold and a blow mold, means for successively positioning said core in said parison mold for molding a parison and in said blow mold for blowing said parison into conformity with the cavity in said blow mold, said apparatus including means aligning said core with a previously formed liner shaped to conform generally to at least one portion of the surface of said core, means positioning said core and said liner in said parison mold and means for molding a layer of plastic around said liner to form a composite parison for blowing in said blow mold, means advancing said core between successive positions, said means for aligning the preformed liner with said core being effected by relative movement in a direction transverse to the direction of movement of said core.
Claim 2
Dependent Claim
143 words
Apparatus for pressure blow molding plastic articles comprising a core, a parison mold and a blow mold, means for successively positioning said core in said parison mold for molding a parison and in said blow mold for blowing said parison into conformity with the cavity in said blow mold, said apparatus including means aligning said core with a previously formed liner shaped to conform generally to at least one portion of the surface of said core, means positioning said core and said liner in said parison mold and means for molding a layer of plastic around said liner to form a composite parison for blowing in said blow mold, means advancing said core between successive positions, said means for aligning the preformed liner with said core being effected by relative movement in a direction transverse to the direction of movement of said core.
Claim 3
Dependent Claim
47 words
Apparatus as set forth in claim 1 in which said core and said parison mold are positioned for molding said parison and separated after molding said parison in an axial direction and said liner and said core are aligned by relative movement transversely to said axial direction.
Claim 4
Dependent Claim
18 words
Apparatus as set forth in claim 1 in which said transverse movement takes place in a linear path.
Claim 5
Dependent Claim
18 words
Apparatus as set forth in claim 1 in which said transverse movement takes place in an arcuate path.
Claim 6
Dependent Claim
25 words
Apparatus as set forth in claim 1 in which a carrier is provided to hold said liner and to apply the same to said core.
Claim 7
Dependent Claim
21 words
Apparatus according to claim 5 in which a magazine carrying said liner is disposed to supply a liner to said carrier.
Claim 8
Dependent Claim
81 words
Apparatus as set forth in claim 5 in which said core is advanced and retracted in a straight axial path, means is provided to shift said blow mold transversely of said path into and out of blow position wherein said core and parison are inserted for blowing, and said liner carrier is shifted transversely into and out of the path of said core for applying the liner to said core prior to the introduction of said core into said parison mold.
Claim 9
Dependent Claim
25 words
Apparatus as set forth in claim 7 in which the paths of said blow mold and said liner carrier lie in the same transverse plane.
Claim 10
Dependent Claim
25 words
Apparatus as set forth in claim 7 in which the paths of said blow mold and of said liner carrier are normal to each other.
Claim 11
Dependent Claim
15 words
Apparatus as set forth in claim 5 in which said blow mold is the carrier.
Claim 12
Dependent Claim
31 words
Apparatus as set forth in claim 10 in which means is provided in said blow mold for securing the liner in place prior to application of said liner to said core.
Claim 13
Dependent Claim
16 words
Apparatus as set forth in claim 11 in which said securing means comprises a suction device.
References Cited (Backward Citations)
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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) | 1976-06-04 | 1976-12-04 | 1977-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-04 | 1980-12-04 | 1981-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-04 | 1984-12-04 | 1985-06-05 | $7700.00 | Window Closed / Lapsed |