US4796766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic container and method of forming same
Assignee: Continental Group Inc
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Filing: 1982-04-01
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Granted: 1989-01-10
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Expires: 2002-04-01
Abstract
Abstract This relates to blow molded containers, and particularly to the formation of blow molded containers formed of a plastic material which is subjectable to a high degree of biaxial orientation for maximum strength. Two containers are formed in each blow molding operation with each container having throughout the stress areas thereof a high degree of biaxial orientation. A container may be in the form of a bottle having an as formed open bottom which is closed by a metal end unit seamed in place. Other containers will have open mouths closed by conventional closures including metal end units which are seamed to the container body or by closure caps which may be releasably interlocked with the neck finish of the container in several known modes. In every instance the containers are formed with a minimum of scrap. This abstract forms no part of the specification of this application and is not to be construed as limiting the claims of the application.
Inventors
- 👤 Richard E. Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:15
CPC Classifications
B; B65; B65D; B65D1/00; B65D1/02; B65D1/0223; B65D15/00; B65D15/02; B65D15/16; B65D15/18; B65D2501/00; B65D2501/0009; B65D2501/0081; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1355; Y10T428/1397
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
119 words
A method of simultaneously forming two blow molded plastic containers, said method comprising the steps of providing a tubular preform having an open end and a closed end, placing said preform in a blow mold cavity of greater length than said preform, introducing a blowing gas into said preform through said preform open end and blow molding said preform with the stretching of said preform both axially and radially to an intermediate shape defining at least two containers each having an open end defined by a radially outwardly directed biaxially oriented seaming flange with said flanges being generally in opposed relation, said preform open end remaining constant, and cutting said intermediate shape to separate and define said two containers.
Claim 2
Independent Claim
119 words
A method of simultaneously forming two blow molded plastic containers, said method comprising the steps of providing a tubular preform having an open end and a closed end, placing said preform in a blow mold cavity of greater length than said preform, introducing a blowing gas into said preform through said preform open end and blow molding said preform with the stretching of said preform both axially and radially to an intermediate shape defining at least two containers each having an open end defined by a radially outwardly directed biaxially oriented seaming flange with said flanges being generally in opposed relation, said preform open end remaining constant, and cutting said intermediate shape to separate and define said two containers.
Claim 3
Dependent Claim
29 words
A method according to claim 1 wherein said flanges prior to cutting of said intermediate shape are joined together by way of an integral ring member free of joints.
Claim 4
Dependent Claim
16 words
A method according to claim 2 wherein said ring member is removed to separate said containers.
Claim 5
Dependent Claim
16 words
A method according to claim 2 wherein said preform open end projects from said ring member.
Claim 6
Dependent Claim
26 words
A method according to claim 2 wherein said ring member has an axis extending in the same general direction as an original axis of said preform.
Claim 7
Dependent Claim
23 words
A method according to claim 2 wherein said ring member has an axis extending generally normal to the original axis of said preform.
Claim 8
Dependent Claim
20 words
A method according to claim 1 wherein said preform open end forms a mouth of one only of said containers.
Claim 9
Dependent Claim
11 words
A method according to claim 1 wherein said containers are identical.
Claim 10
Dependent Claim
34 words
A method according to claim 1 wherein said preform open end forms one end of one of said containers, and the open end of said one container is the bottom of said one container.
Claim 11
Dependent Claim
25 words
A method according to claim 1 wherein said open end of said one container is closed by a metal bottom seamed to said one container.
Claim 12
Dependent Claim
43 words
An intermediate article of manufacture comprising an integral blow molded hollow plastic member having an open neck portion and at least two separate containers integrally joined together, and each of said containers has an open end defined by a biaxially oriented seaming flange.
Claim 13
Dependent Claim
43 words
An intermediate article of manufacture comprising an integral blow molded hollow plastic member having an open neck portion and at least two separate containers integrally joined together, and each of said containers has an open end defined by a biaxially oriented seaming flange.
Claim 14
Dependent Claim
21 words
An intermediate article according to claim 11 wherein said open neck portion has an axis disposed generally coaxially of said containers.
Claim 15
Dependent Claim
23 words
An intermediate article according to claim 11 wherein said open neck portion has an axis disposed normal to the axis of said containers.
Claim 16
Dependent Claim
26 words
An intermediate article according to claim 11 wherein said containers have open tops arranged in opposed relation and joined together by a central annular ring member.
Claim 17
Dependent Claim
41 words
An intermediate article according to claim 11 wherein one of said containers has an open bottom, and said open neck portion forms part of said one container, and the other of said containers has an open top and a closed bottom.
Claim 18
Dependent Claim
30 words
An intermediate article of manufacture according to claim 11 wherein two separate containers are joined together by an intermediate ring member free of joints and connecting together said seaming flange.
Claim 19
Dependent Claim
50 words
A blow molded plastic container comprising a biaxially oriented tubular body having one end open and a second end defined by a shoulder joined to a tubular neck, and a metal bottom seamed to said body enclosing said one open end, said tubular neck being of an injection molded construction.
Claim 20
Dependent Claim
50 words
A blow molded plastic container comprising a biaxially oriented tubular body having one end open and a second end defined by a shoulder joined to a tubular neck, and a metal bottom seamed to said body enclosing said one open end, said tubular neck being of an injection molded construction.
Claim 21
Dependent Claim
66 words
A blow molded plastic container comprising a biaxially oriented tubular body having one end open and a second end defined by a shoulder joined to a tubular neck, and a metal bottom seamed to said body enclosing said one open end, said body having at said open one end a biaxially oriented peripheral seaming flange forming part of the seam between said body and said bottom.
Claim 22
Dependent Claim
66 words
A blow molded plastic container comprising a biaxially oriented tubular body having one end open and a second end defined by a shoulder joined to a tubular neck, and a metal bottom seamed to said body enclosing said one open end, said body having at said open one end a biaxially oriented peripheral seaming flange forming part of the seam between said body and said bottom.
References Cited (Backward Citations)
USRE23564E
Cited
US23564A
Cited
US3304603A
Cited
US3294885A
Cited
US3328498A
Cited
US3457590A
Cited
GB1167513A
Cited
NL6615449A
Cited
US3432586A
Cited
US3428722A
Cited
FR1540333A
Cited
US3525123A
Cited
US3784038A
Cited
US3872203A
Cited
US3862698A
Cited
JPS5191967A
Cited
US4125632A
Cited
CA1120221A
Cited
US4281769A
Cited
US4406854A
Cited
GB2041286A
Cited
US4356926A
Cited
GB2104825A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-01-10 | 1992-07-11 | 1993-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-10 | 1996-07-11 | 1997-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-10 | 2000-07-11 | 2001-01-10 | $7700.00 | Window Closed / Lapsed |