US3787157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making composite plastic articles
Assignee: National Can Corp
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Filing: 1971-10-06
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Granted: 1974-01-22
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Expires: 1991-10-06
Abstract
Abstract Plastic articles and apparatus for making the same in which a preformed sleeve is placed over a core, a parison is injected around the core and sleeve in a parison mold and the parison is blown in a blow mold together with the sleeve.
Inventors
- 👤 E Valyi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:22
CPC Classifications
B; B65; B65D; B65D23/00; B65D23/02; B29; B29C; B29C45/00; B29C45/14; B29C45/14008; B29C45/17; B29C45/26; B29C45/36; B29C49/00; B29C49/42; B29C2795/00; B29C2795/002; B29C2949/00; B29C2949/07; B29C2949/072; B29C2949/0725; B29C2949/073; B29C2949/0733; B29C2949/074; B29C2949/076; B29C2949/0761; B29C2949/0762; B29C2949/0767; B29C2949/0768; B29C2949/077; B29C2949/0771; B29C2949/0772; B29C2949/0773; B29C2949/078; B29C2949/0781; B29C2949/081; B29C2949/0811; B29C2949/0818; B29C2949/0819; B29C2949/30; B29C2949/3008; B29C2949/3009; B29C2949/3016; B29C2949/302; B29C2949/3024; B29C2949/3026; B29C2949/3032; B29C2949/3064; B29C2949/3066; B29C2949/3074; B29C2949/3082; B29C2949/3084; B29C49/64; B29C49/6604; B29C49/6605; B29C51/00; B29C51/14; B29K; B29K2077/00; B29K2105/00; B29K2105/25; B29K2105/253; B29K2995/00; B29K2995/0037; B29K2995/0068; B29K2995/0069; B29L; B29L2031/00; B29L2031/712; B29L2031/7158; B29L2031/716; B29L2031/722
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
125 words
Apparatus for making lined containers or the like in an injection blow-molding system which comprises a parison mold and a core on which the parison is to be formed, said core being separable from the parison mold, supply means for supplying a formed sleeve to said core, means applying a formed sleeve to said core while separated from said mold, means bringing together the core with the sleeve thereon and the parison mold so that the core is in the parison mold, means molding the plastic onto the sleeve on the core in the parison mold, means separating the core with the sleeve and parison thereon from the parison mold and a blow mold to which the sleeve and parison can be transferred for blowing.
Claim 2
Dependent Claim
125 words
Apparatus for making lined containers or the like in an injection blow-molding system which comprises a parison mold and a core on which the parison is to be formed, said core being separable from the parison mold, supply means for supplying a formed sleeve to said core, means applying a formed sleeve to said core while separated from said mold, means bringing together the core with the sleeve thereon and the parison mold so that the core is in the parison mold, means molding the plastic onto the sleeve on the core in the parison mold, means separating the core with the sleeve and parison thereon from the parison mold and a blow mold to which the sleeve and parison can be transferred for blowing.
Claim 3
Dependent Claim
36 words
Apparatus as set forth in claim 1 in which the core is a blow core and the blow core with the sleeve and parison thereon is transferred into the blow mold for blowing the finished article.
Claim 4
Dependent Claim
22 words
Apparatus as set forth in claim 1, including means for reheating the sleeve and parison prior to blowing in the blow mold.
Claim 5
Dependent Claim
38 words
Apparatus as set forth in claim 1 including holding means for said formed sleeve and means bringing said holding means and said core into alignment for transferring the sleeve onto the core with the core in retracted position.
Claim 6
Dependent Claim
33 words
Apparatus as set forth in claim 1 in which a holder for said sleeves and a blow mold are mounted to be selectively shifted into and out of the path of said core.
Claim 7
Dependent Claim
63 words
Apparatus as set forth in claim 1 including a holder for said sleeve, means bringing said holder into alignment with said core, means juxtaposing said core and said sleeve, means placing said sleeve onto said core, means separating said holder and said core and means placing said core with the sleeve thereon into said parison mold for the molding of the parison thereon.
Claim 8
Dependent Claim
30 words
Apparatus as set forth in claim 1 in which the end of said core is adapted to cause said sleeve to seat against said parison mold for supporting said core.
Claim 9
Dependent Claim
54 words
The apparatus as set forth in claim 7 in which the parison mold includes an end wall having an injection opening and said core end seats across said injection opening and space is provided between said core end and said end wall for the flow of plastic from said opening into said parison mold.
Claim 10
Dependent Claim
20 words
The apparatus as set forth in claim 1 including means for applying a vacuum between said sleeve and said core.
References Cited (Backward Citations)
DE1950212A1
Cited
JPH0740435A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |