US3817427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toothpaste tubes and similar tubular containers and methods for their manufacture
Assignee: BRH Corp
•
Filing: 1971-12-27
•
Granted: 1974-06-18
•
Expires: 1991-12-27
Abstract
Abstract Tubular containers comprising a tube of flexible packaging material joined to a closure member inserted in one end thereof. The closure member includes (1) an annular skirt to which the tube may be joined, and (2) a radially extending flange that extends around the circumference of the tube and projects beyond the exterior surface of the tube to form a portion that is adapted to be thermally reflowed around the end and exterior side portions of the tube to thereby conceal the junction of the tube and the closure member. Several methods for heat sealing the tube to the closure member are shown, including a heat seal between the exterior of the tube and a portion of the radially-extending flange. The tubular body may be made from a sheet of material folded into a tube with its edges joined together in a longitudinal seam, several forms having particular utility being shown herein. A method for the manufacture of tubular containers employing a closure member of the aforesaid construction includes the steps combining the tubular body and the closure member and thereafter reflowing the radially-extending flange about the outer surface of the tubular body through the application of heat.
Inventors
- 👤 R Neff
- 👤 K Morrison
- 👤 W Groechel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:34
CPC Classifications
B; B65; B65D; B65D35/00; B65D35/02; B65D35/12; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C65/24; B29C65/30; B29C65/305; B29C65/56; B29C65/567; B29C65/568; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/12; B29C66/124; B29C66/1244; B29C66/12441; B29C66/1246; B29C66/12469; B29C66/50; B29C66/51; B29C66/53; B29C66/534; B29C66/5344; B29C66/61; B29C66/612; B29C66/63; B29C66/70; B29C66/72; B29C66/723; B29C66/11; B29C66/112; B29C66/1122; B29C66/13; B29C66/133; B29C66/40; B29C66/41; B29C66/43; B29C66/432; B29C66/4322; B29C66/7232; B29C66/72321; B29C66/72327; B29C66/72328; B29C66/7234; B29C66/80; B29C66/83; B29C66/832; B29C66/8322; B29L; B29L2023/00; B29L2023/20
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
196 words
A method for the manufacture of a tubular container having a collapsible tubular body of flexible packaging material and an end closure member of thermoplastic material inserted in an end of the tubular body and defining a dispensing opening, comprising the steps of: 1. combining a collapsible tubular body with an end closure member of the type having a main body portion, an annular skirt depending therefrom and a radially extending flange, by arranging the tubular body to have a wall portion extending around the annular skirt of the closure member, the annular skirt of the end closure member being shorter than the tubular body to extend only partly into the tubular body, and with the flange of the closure member extending beyond the said wall portion of the tUbular body, and 2. heat sealing the collapsible tubular container to the annular skirt of the end closure member, and thereafter, 3. heating the flange of the end closure member and reflowing it to a final condition in which it is positioned axially of the container to overlie the exterior of the said wall portion of the tubular body, the heating continuing during reflowing of the flange.
Claim 2
Independent Claim
196 words
A method for the manufacture of a tubular container having a collapsible tubular body of flexible packaging material and an end closure member of thermoplastic material inserted in an end of the tubular body and defining a dispensing opening, comprising the steps of: 1. combining a collapsible tubular body with an end closure member of the type having a main body portion, an annular skirt depending therefrom and a radially extending flange, by arranging the tubular body to have a wall portion extending around the annular skirt of the closure member, the annular skirt of the end closure member being shorter than the tubular body to extend only partly into the tubular body, and with the flange of the closure member extending beyond the said wall portion of the tUbular body, and 2. heat sealing the collapsible tubular container to the annular skirt of the end closure member, and thereafter, 3. heating the flange of the end closure member and reflowing it to a final condition in which it is positioned axially of the container to overlie the exterior of the said wall portion of the tubular body, the heating continuing during reflowing of the flange.
Claim 3
Dependent Claim
17 words
heat sealing the collapsible tubular container to the annular skirt of the end closure member, and thereafter,
Claim 4
Dependent Claim
17 words
heat sealing the collapsible tubular container to the annular skirt of the end closure member, and thereafter,
Claim 5
Dependent Claim
17 words
heat sealing the collapsible tubular container to the annular skirt of the end closure member, and thereafter,
Claim 6
Dependent Claim
17 words
heat sealing the collapsible tubular container to the annular skirt of the end closure member, and thereafter,
Claim 7
Independent Claim
43 words
A method for the manufacture of a tublar container having a collapsible tubular body of flexible packaging material and an end closure member of thermoplastic material inserted in an end of the tubular body and defining a dispensing opening, comprising the steps of:
Claim 8
Independent Claim
43 words
A method for the manufacture of a tublar container having a collapsible tubular body of flexible packaging material and an end closure member of thermoplastic material inserted in an end of the tubular body and defining a dispensing opening, comprising the steps of:
Claim 9
Dependent Claim
45 words
heating the flange of the end closure member and reflowing it to a final condition in which it is positioned axially of the container to overlie the exterior of the said wall portion of the tubular body, the heating continuing during reflowing of the flange.
Claim 10
Dependent Claim
45 words
heating the flange of the end closure member and reflowing it to a final condition in which it is positioned axially of the container to overlie the exterior of the said wall portion of the tubular body, the heating continuing during reflowing of the flange.
Claim 11
Dependent Claim
46 words
heating the flange of the end closure member and reflowing it to a final condition in which it is positioned axially of the container to overlie the exterior of the said wall portion of the tubular body, the heating continuing during reflowing of the flange, and
Claim 12
Dependent Claim
46 words
heating the flange of the end closure member and reflowing it to a final condition in which it is positioned axially of the container to overlie the exterior of the said wall portion of the tubular body, the heating continuing during reflowing of the flange, and
Claim 13
Dependent Claim
26 words
heat sealing the collapsible tubular body to the radially extending flange of the end closure member after heating and reflowing the flange to its final condition.
Claim 14
Dependent Claim
26 words
heat sealing the collapsible tubular body to the radially extending flange of the end closure member after heating and reflowing the flange to its final condition.
References Cited (Backward Citations)
US1293860A
Cited
US2214422A
Cited
US2274258A
Cited
US2430046A
Cited
US2476446A
Cited
US2876725A
Cited
US2965964A
Cited
US3578524A
Cited
US3599837A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |