EP0091275A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Improved plastic container and method of forming same
Assignee: Continental Plastic Beverage Bottles Inc
•
Filing: 1983-03-30
•
Granted: —
•
Expires: 2003-03-30
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. At least 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. On the other hand, the intermediately formed article may be in the form of a plurality of hollow containers arranged in circumferentially adjacent relation and directly secured to each other and to the bottom and top panels. 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.
Inventors
- 👤 Richard E. Clark
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 05:35
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/42; B29C49/4273; B29C49/4278; B29C65/00; B29C65/56; B29C65/58; B29C66/00; B29C66/50; B29C66/51; B29C66/54; B29C66/542; B29C66/545; B29C66/70; B29C66/74; B29C66/742; B65; B65D; B65D1/00; B65D1/02; B65D1/0223; B65D15/00; B65D15/02; B65D15/16; B65D15/18; B29C65/567; B29C65/568; B29C66/71; B29L; B29L2031/00; B29L2031/712; B29L2031/717; B65D2501/00; B65D2501/0009; B65D2501/0081; Y; Y10; Y10S; Y10S428/00; Y10S428/91; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1397
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
83 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, and introducing a blowing gas into said preform through said preform open end and blow -molding said preform to an intermediate shape defining at least two containers each having an open end defined by a radially outwardly directed seaming flange with said flanges being generally in opposed relation.
Claim 2
Independent Claim
83 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, and introducing a blowing gas into said preform through said preform open end and blow -molding said preform to an intermediate shape defining at least two containers each having an open end defined by a radially outwardly directed seaming flange with said flanges being generally in opposed relation.
Claim 3
Dependent Claim
22 words
A method according to claim 1 wherein said seaming flanges of said containers are spaced apart by an intermediate integral ring member.
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
19 words
A method according to claim 2 wherein said preform open end remains constant and projects from said ring member.
Claim 6
Dependent Claim
22 words
A method according to claim 2 wherein said preform open end remains constant and forms a mouth of one of said containers.
Claim 7
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 8
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 9
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 10
Dependent Claim
38 words
A method according to claim 1 wherein the number of containers is in excess of two, said containers are in circumferentially adjacent relation, and circumferentially adjacent ones of said seaming flanges are in direct connection with each other.
Claim 11
Dependent Claim
27 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.
Claim 12
Dependent Claim
27 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.
Claim 13
Dependent Claim
21 words
An intermediate article according to claim 10 wherein said open neck portion has an axis disposed generally coaxially of said containers.
Claim 14
Dependent Claim
23 words
An intermediate article according to claim 1Q wherein said open neck portion has an axis disposed normal to the axis of said containers.
Claim 15
Dependent Claim
16 words
An intermediate article of manufacture wherein said containers are joined together by a central ring member.
Claim 16
Dependent Claim
16 words
An intermediate article of manufacture wherein said containers are joined together by a central ring member.
Claim 17
Dependent Claim
23 words
An intermediate article according to claim 13 wherein said open neck portion has an axis disposed normal to the axis of said containers.
Claim 18
Dependent Claim
17 words
An intermediate article according to claim 10 wherein said containers have open tops arranged in opposed relation.
Claim 19
Dependent Claim
29 words
An intermediate article according to claim 10 or 13 wherein one of said containers has an open bottom, and said open neck portion forms part of said one container.
Claim 20
Dependent Claim
46 words
An intermediate article of manufacture according to claim 10 wherein there are more than three of said containers, said containers are in adjacent circumferential relation, and said containers are joined to essentially flat top and bottom walls, and said top wall carries said open neck portion.
Claim 21
Dependent Claim
40 words
A blow molded plastic container comprising a 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 and closing said open one end.
Claim 22
Dependent Claim
40 words
A blow molded plastic container comprising a 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 and closing said open one end.
Claim 23
Dependent Claim
30 words
A blow molded plastic container according to claim 18 wherein said container is particularly adapted for the packaging of beverages under pressures on the order of 90 p.s.i. and above.
Claim 24
Dependent Claim
20 words
. A blow molded plastic container according to claim 18 wherein said tubular neck is of an injection molded construction.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.