US4775564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible-stable blown container
Assignee: Corpus Christi Polymers LLC
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Filing: 1985-03-11
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Granted: 1988-10-04
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Expires: 2005-03-11
Abstract
Abstract A molded extensible-collapsible container having a series of flutes, in the generic sense, in its side to permit the container when subjected to an external force to move to a collapsed position or to the extended position when preferably the yield point of the plastic is no greater than about 5% and it has an ASTM modulus of elasticity greater than about (6.895×10 8 pascals) and less than about (2.758×10 9 pascals) and preferably about (1.034×10 9 pascals to 2.069×10 9 pascals). The plastic of the blow molded container can be a blow moldable polyester of less than 5% elongation at yield with polyethylene terephthalate being most preferred.
Inventors
- 👤 Clem B. Shriver
- 👤 Donald E. Richeson
- 👤 Robert H. Vogliano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:09
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/0005; B65; B65D; B65D1/00; B65D1/02; B65D1/0223; B65D1/0292; B29K; B29K2067/00; Y; Y10; Y10S; Y10S215/00; Y10S215/90; Y10S220/00; Y10S220/13; Y10S220/14; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1397
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
105 words
A molded extensible-collapsible plastic container having a series of pleats or flutes in its side to permit the container to be stable in its extended position and in its collapsed position, said extended position having ends of each pair of flutes or pleats displayed essentially evenly above and below a horizontal line through shortest radius of said pair and said collapsed position having the end of said top flute or pleat of said pair moved downward below said horizontal line of said pair, said plastic having an ASTM modulus of elasticity sufficient to yield, but greater than 6.895×10 8 and less than 2.069×10 9 pascals.
Claim 2
Dependent Claim
105 words
A molded extensible-collapsible plastic container having a series of pleats or flutes in its side to permit the container to be stable in its extended position and in its collapsed position, said extended position having ends of each pair of flutes or pleats displayed essentially evenly above and below a horizontal line through shortest radius of said pair and said collapsed position having the end of said top flute or pleat of said pair moved downward below said horizontal line of said pair, said plastic having an ASTM modulus of elasticity sufficient to yield, but greater than 6.895×10 8 and less than 2.069×10 9 pascals.
Claim 3
Dependent Claim
14 words
The plastic container of claim 1 wherein the plastic is a blow moldable polyester.
Claim 4
Dependent Claim
12 words
The container of claim 2 wherein the polyester is a polyethylene terephthalate.
Claim 5
Dependent Claim
12 words
The container of claim 1 wherein the plastic is an oriented polyester.
Claim 6
Dependent Claim
13 words
The container of claim 4 wherein the plastic is an oriented polyethylene terephthalate.
Claim 7
Dependent Claim
23 words
The container of claim 1 wherein the plastic is blow moldable and has an elongation of less than 5% at the yield point.
Claim 8
Dependent Claim
25 words
The plastic container of claim 1 wherein side walls of adjacent pair of flutes forms essentially equal angles about the pleat line of said pair.
Claim 9
Dependent Claim
24 words
The plastic container of claim 1 wherein sides of each adjacent pair of flutes form essentially equal angles with pleat line through said pair.
Claim 10
Dependent Claim
23 words
The container of claim 6 wherein sides of each adjacent pair of flutes form essentially equal angles with pleat line through said pair.
Claim 11
Dependent Claim
20 words
The container of claim 1 wherein the flutes have longest radii of each flute forms a rounded side wall portion.
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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) | 1991-10-04 | 1992-04-04 | 1992-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-04 | 1996-04-04 | 1996-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-04 | 2000-04-04 | 2000-10-04 | $7700.00 | Window Closed / Lapsed |