US5080244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic resin thin-walled bottle and method of producing same
Assignee: Yoshino Kogyosho Co Ltd
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Filing: 1989-05-31
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Granted: 1992-01-14
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Expires: 2009-05-31
Abstract
Abstract This invention provides a synthetic resin thin-walled bottle, a tubular intermediate therefor and a method of producing a thin-walled bottle. The thin-walled bottle has ribs at least at its bottom portion, and the bottle bottom is raised up frusto-conically or has an undulatory shape. The tubular intermediate is first formed with ribs which become thin-walled protuberant ribs after blow molding. The thin-walled bottle is produced by blow-molding the ribbed tubular intermediate.
Inventors
- 👤 Yataro Yoshino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:28
CPC Classifications
B; B65; B65D; B65D1/00; B65D1/02; B65D1/0223; B65D1/0261; B65D1/0276; B65D1/0284; B29; B29C; B29C2949/00; B29C2949/07; B29C2949/072; B29C2949/0723; B29C2949/0724; B29C2949/073; B29C2949/0732; B29C2949/0733; B29C2949/074; B29C2949/0741; B29C2949/0746; B29C2949/0747; B29C2949/076; B29C2949/0768; B29C2949/077; B29C2949/0772; B29C2949/0773; B29C2949/0777; B29C2949/20; B29C2949/22; B29C2949/24; B29C2949/30; B29C2949/3016; B29C2949/3018; B29C2949/302; B29C2949/3022; B29C2949/3024; B29C2949/3026; B65D2501/00; B65D2501/0009; B65D2501/0018; B65D2501/0036
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
116 words
A biaxially oriented synthetic resin thin-walled container made by blow molding an intermediate, comprising: a top-open neck portion; a closed bottom portion; a hollow cylindrical barrel body portion interconnecting said neck portion and said bottom portion; the bottom portion having a plurality of hollow foot portions bulging downwardly of the bottle, lower ends of the foot portions defining ground contacting surfaces; a plurality of solid rigid ribs being provided at least on an internal surface of a bottom wall of the bottom portion, and extending radially along an internal surface of the foot portions, said rigid ribs being a result of a plurality of ridges provided on internal surfaces of said intermediate prior to biaxial orientation.
Claim 2
Dependent Claim
116 words
A biaxially oriented synthetic resin thin-walled container made by blow molding an intermediate, comprising: a top-open neck portion; a closed bottom portion; a hollow cylindrical barrel body portion interconnecting said neck portion and said bottom portion; the bottom portion having a plurality of hollow foot portions bulging downwardly of the bottle, lower ends of the foot portions defining ground contacting surfaces; a plurality of solid rigid ribs being provided at least on an internal surface of a bottom wall of the bottom portion, and extending radially along an internal surface of the foot portions, said rigid ribs being a result of a plurality of ridges provided on internal surfaces of said intermediate prior to biaxial orientation.
Claim 3
Dependent Claim
71 words
A container according to claim 1, wherein a plurality of projections and recessions, arranged alternatively in series and undulatory in sectional shape, extend from the center of the bottom wall to the outer periphery of the bottom wall, a difference in level between said projections and recessions gradually increasing as the distance from the center of the bottom wall increases, the foot portions being defined by a plurality of said projections.
Claim 4
Dependent Claim
19 words
A container according to claim 2, wherein said rigid ribs are formed at bends of each recession and projection.
Claim 5
Dependent Claim
98 words
A biaxially oriented synthetic resin thin-walled container made by blow molding an intermediate, comprising: a top-open neck portion; a closed bottom portion which is bulged hemispherically downward; a hollow cylindrical barrel body portion interconnecting said neck portion and said bottom portion; a plurality of solid rigid ribs being provided at least on an internal surface of a bottom wall of the bottom portion, and extending radially from the vicinity of the center of the bottom wall, said rigid ribs being the result of a plurality of ridges provided on internal surfaces of said intermediate prior to biaxial orientation.
Claim 6
Dependent Claim
98 words
A biaxially oriented synthetic resin thin-walled container made by blow molding an intermediate, comprising: a top-open neck portion; a closed bottom portion which is bulged hemispherically downward; a hollow cylindrical barrel body portion interconnecting said neck portion and said bottom portion; a plurality of solid rigid ribs being provided at least on an internal surface of a bottom wall of the bottom portion, and extending radially from the vicinity of the center of the bottom wall, said rigid ribs being the result of a plurality of ridges provided on internal surfaces of said intermediate prior to biaxial orientation.
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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) | 1995-01-13 | 1995-07-15 | 1996-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-13 | 1999-07-15 | 2000-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-13 | 2003-07-15 | 2004-01-14 | $7700.00 | Window Closed / Lapsed |