US5222615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container having support structure in its bottom section
Assignee: Yoshino Kogyosho Co Ltd
•
Filing: 1992-04-29
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Granted: 1993-06-29
•
Expires: 2012-04-29
Abstract
Abstract A hollow blow-molded container of a biaxially oriented thermoplastic material in which the container bottom section contains support panels or structures. The support panels prevent uneven shrinkage and help minimize rocking of the container by maintaining the uniformity of the bottom section during fabrication.
Inventors
- 👤 Akiho Ota
- 👤 Yoshiaki Hayashi
- 👤 Takao Iizuka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:39
CPC Classifications
B; B65; B65D; B65D1/00; B65D1/02; B65D1/0223; B65D1/0261; B65D1/0276
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
141 words
A thin-walled container made of thermoplastic material, said container being formed by blow-molding a tubular parison, being of substantially rectangular shape in cross section, and comprising a neck section, a body section, a tapering shoulder section and a bottom section; said tapering shoulder section being located between said neck section and said body section; said bottom section being adjacent said body section and delineated therefrom by a circumscribing annular rib, said bottom section being defined between a seating ring at a bottom end of said container and said annular rib; said bottom section including four sides each being inclined upwardly from said seating ring toward said annular rib, at least one of said sides including at least one indented or projecting support panel defined within said at least one of said sides; and said seating ring including at least one indentation.
Claim 2
Dependent Claim
141 words
A thin-walled container made of thermoplastic material, said container being formed by blow-molding a tubular parison, being of substantially rectangular shape in cross section, and comprising a neck section, a body section, a tapering shoulder section and a bottom section; said tapering shoulder section being located between said neck section and said body section; said bottom section being adjacent said body section and delineated therefrom by a circumscribing annular rib, said bottom section being defined between a seating ring at a bottom end of said container and said annular rib; said bottom section including four sides each being inclined upwardly from said seating ring toward said annular rib, at least one of said sides including at least one indented or projecting support panel defined within said at least one of said sides; and said seating ring including at least one indentation.
Claim 3
Dependent Claim
16 words
The container of claim 1, wherein said container is of a square shape in cross section.
Claim 4
Dependent Claim
18 words
The container of claim 1, wherein each of said sides includes at least one said support panel therein.
Claim 5
Dependent Claim
20 words
The container of claim 1, wherein only alternating ones of said sides include at least one said support panel therein.
Claim 6
Dependent Claim
29 words
The container of claim 4, wherein said seating ring is indented at portions of said seating ring opposite the sides of said bottom section which lack a support panel.
Claim 7
Dependent Claim
42 words
The container of claim 5, further comprising a radially inward annular ring adjacent said seating ring, said annular ring comprising indentations adjacent portions of said seating ring opposite those sides of said bottom section which include at least one said support panel.
Claim 8
Dependent Claim
15 words
The container of claim 1, wherein said body section includes a plurality of collapse panels.
Claim 9
Dependent Claim
27 words
The container of claim 7, wherein at least one of said plurality of collapse panels in said body section includes at least one reinforcing rib extending therewithin.
Claim 10
Dependent Claim
13 words
The container of claim 1, wherein said material is heat set polyethylene terephthalate.
Claim 11
Dependent Claim
11 words
The container of claim 1, wherein said material is a nitrile.
Claim 12
Dependent Claim
15 words
The container of claim 1, wherein said shoulder section includes a plurality of support panels.
Claim 13
Dependent Claim
23 words
The container of claim 1, wherein each side of said bottom section and each side of said shoulder section includes a support panel.
Claim 14
Dependent Claim
12 words
The container of claim 1, wherein said shoulder section has four sides.
Claim 15
Dependent Claim
159 words
A thin-walled container made of thermoplastic material, said container being formed by blow-molding a tubular parison, being a substantially four-sided container and comprising a neck section, a body section, a tapering shoulder section and a bottom section; said tapering shoulder section being located between said neck section and said body section; said bottom section being adjacent said body section and delineated therefrom by a circumscribing annular rib, said bottom section being defined between a seating ring at a bottom end of said container and said annular rib; said body section having four substantially vertical sides; said shoulder section containing at least one indented or projecting support panel; said bottom section having four sides, each side being inclined upwardly from said seating ring toward said annular rib, and at least one of said sides containing at least one indented or projecting support panel defined within said at least one of said sides; said seating ring including at least one indentation.
Claim 16
Dependent Claim
159 words
A thin-walled container made of thermoplastic material, said container being formed by blow-molding a tubular parison, being a substantially four-sided container and comprising a neck section, a body section, a tapering shoulder section and a bottom section; said tapering shoulder section being located between said neck section and said body section; said bottom section being adjacent said body section and delineated therefrom by a circumscribing annular rib, said bottom section being defined between a seating ring at a bottom end of said container and said annular rib; said body section having four substantially vertical sides; said shoulder section containing at least one indented or projecting support panel; said bottom section having four sides, each side being inclined upwardly from said seating ring toward said annular rib, and at least one of said sides containing at least one indented or projecting support panel defined within said at least one of said sides; said seating ring including at least one indentation.
Claim 17
Dependent Claim
20 words
The container of claim 14, comprising at least one support panel on each of said sides of said shoulder section.
Claim 18
Dependent Claim
18 words
The container of claim 14, comprising two support panels on each of said sides of said shoulder section.
Claim 19
Dependent Claim
22 words
The container of claim 14, wherein said bottom section comprises a plurality of support panels on said sides of said bottom section.
Claim 20
Dependent Claim
22 words
The container of claim 14, wherein said bottom section comprises a support panel on each of said sides of said bottom section.
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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) | 1996-06-28 | 1996-12-28 | 1997-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-06-28 | 2000-12-28 | 2001-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-06-28 | 2004-12-28 | 2005-06-29 | $7700.00 | Window Closed / Lapsed |