US3604595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-collapsing container
Assignee: Individual
•
Filing: 1969-11-24
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Granted: 1971-09-14
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Expires: 1989-11-24
Abstract
Abstract A self-collapsing thermoplastic container is constructed in such a manner that the walls thereof exert an internal pressure upon the contents in such a manner that upon opening of the discharge outlet the content material may be dispensed.
Inventors
- 👤 John A Wiedeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:26
CPC Classifications
B; B65; B65D; B65D35/00; B65D35/02; B65D35/04; B65D35/08
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
78 words
A collapsible thermoplastic container for fluid material comprising a pair of opposite sidewalls, an end wall and a discharge wall having having a container opening, the walls defining a chamber; the sidewalls of the container being permanently deformed into a helical coil configuration and being extendible when fluid contents are introduced into the chamber, the sidewalls tending to return progressively to the helical coil configuration to constrain continuously the fluid contents in a direction toward the container opening.
Claim 2
Dependent Claim
78 words
A collapsible thermoplastic container for fluid material comprising a pair of opposite sidewalls, an end wall and a discharge wall having having a container opening, the walls defining a chamber; the sidewalls of the container being permanently deformed into a helical coil configuration and being extendible when fluid contents are introduced into the chamber, the sidewalls tending to return progressively to the helical coil configuration to constrain continuously the fluid contents in a direction toward the container opening.
Claim 3
Dependent Claim
43 words
A collapsible thermoplastic container according to claim 1 wherein the interior of the chamber further includes a protective coating of a material which is inert to the thermoplastic material of the container and to the fluid material to be contained within the chamber.
Claim 4
Dependent Claim
14 words
A collapsible thermoplastic container according to claim 2 wherein the protective coating comprises aluminum.
Claim 5
Dependent Claim
18 words
A collapsible thermoplastic container according to claim 2, wherein the protective coating ranges in thickness from 100-500 Angstroms.
Claim 6
Dependent Claim
24 words
A collapsible thermoplastic container according to claim 1 wherein the discharge wall further includes a neck portion having a conduit communicating with the chamber.
Claim 7
Dependent Claim
19 words
A collapsible thermoplastic container according to claim 5 wherein a stopper means is removably mounted on the neck portion.
Claim 8
Dependent Claim
18 words
A collapsible thermoplastic container according to claim 5 wherein a cap means is mounted on the neck portion.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |