US3706393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic container and method of making the same
Assignee: Pelorex Corp
•
Filing: 1971-07-12
•
Granted: 1972-12-19
•
Expires: 1991-07-12
Abstract
Abstract A plastic container has a cylindrical body member and a bottom member which are separately molded. The body member is formed with an open bottom and has an annular groove in its bottom edge. The bottom member has a pair of concentric upstanding annular flanges, the outer one fitting within the annular groove in the bottom edge of the body member, and the inner one fitting within the open bottom of the container to abut the lower portion of the interior wall thereof. The parts are permanently sealed to each other by ultrasonic welding, usually after a bottom-filling operation with the container in an inverted position.
Inventors
- 👤 George L Curtis
- 👤 James H Riesenberg
- 👤 Ralph E Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:25
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/38; B29; B29C; B29C65/00; B29C65/02; B29C65/08; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/12; B29C66/124; B29C66/1246; B29C66/12463; B29C66/50; B29C66/51; B29C66/54; B29C66/542; B65D11/00; B65D11/02; B29C66/80; B29C66/83; B29C66/832; Y; Y10; Y10S; Y10S220/00; Y10S220/31
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
119 words
In a plastic container for pressurized contents, a body member comprising a generally cylindrical wall formed with an open bottom end and having a bottom wall member secured thereto, said body member bottom end having an annular groove therein, said bottom member having an annular flange formation fitting snugly within said groove and a second concentric flange fitting within the said bottom end of the container body with the outer surface of said second flange in abutment with the lower portion of the interior surface of said container body to reinforce the same against external impact forces, said body member and said bottom member being sealed to each other at least in the area of said first flange formation.
Claim 2
Dependent Claim
119 words
In a plastic container for pressurized contents, a body member comprising a generally cylindrical wall formed with an open bottom end and having a bottom wall member secured thereto, said body member bottom end having an annular groove therein, said bottom member having an annular flange formation fitting snugly within said groove and a second concentric flange fitting within the said bottom end of the container body with the outer surface of said second flange in abutment with the lower portion of the interior surface of said container body to reinforce the same against external impact forces, said body member and said bottom member being sealed to each other at least in the area of said first flange formation.
Claim 3
Dependent Claim
43 words
A plastic container according to claim 1 wherein said sealing of the body and bottom members extends from said first flange formation inwardly and along at least part of the abutting surfaces of second flange and the interior surface of the container body.
Claim 4
Dependent Claim
16 words
A plastic container according to claim 1 wherein said members are sealed by an autogenous weld.
Claim 5
Dependent Claim
16 words
A plastic container according to claim 1 wherein said members are sealed by an ultrasonic weld.
Claim 6
Dependent Claim
16 words
A plastic container according to claim 2 wherein said members are sealed by an autogenous weld.
Claim 7
Dependent Claim
16 words
A plastic container according to claim 2 wherein said members are sealed by an ultrasonic weld.
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) | 1975-12-19 | 1976-06-19 | 1976-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-19 | 1980-06-19 | 1980-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-19 | 1984-06-19 | 1984-12-19 | $7700.00 | Window Closed / Lapsed |