US3913774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
End caps for containers
Assignee: Individual
•
Filing: 1973-03-12
•
Granted: 1975-10-21
•
Expires: 1993-03-12
Abstract
Abstract A container having a tubular central section forming sides and rigid end caps in positive engagement. The sides have perforations near the rims and the rigid end caps have engaging means consisting of a first portion for insertion in said perforations and a second portion for preventing the disengagement of said perforations from said first portion.
Inventors
- 👤 Leslie Vajtay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:13
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/02; B65D5/12; B65D15/00; B65D15/02; B65D15/04; B65D15/08
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
186 words
A container having a tubular central section forming a plurality of sides and at least one rigid end cap, said at least one end cap positively engaging at least one of said plurality of sides, the combination comprising: at least one perforation in said at least one of said plurality of sides; said rigid end cap having a base and a plurality of rigid flanges of the same number as said plurality of sides, said flanges being contiguous with at least a portion of said sides; and at least one substantially rigid engaging means integral with said rigid end cap, said engaging means having at least two fixedly spaced apart portions, a first portion forming a first camming surface for flexing said at least one of said plurality of sides in a first direction and also forming a protrusion engaging said at least one perforation, said second portion forming an opposed camming surface for flexing said at least one side in an opposite direction and also forming a retaining surface integral with said rigid end cap for preventing the disengagement of said perforation from said protrusion.
Claim 2
Dependent Claim
186 words
A container having a tubular central section forming a plurality of sides and at least one rigid end cap, said at least one end cap positively engaging at least one of said plurality of sides, the combination comprising: at least one perforation in said at least one of said plurality of sides; said rigid end cap having a base and a plurality of rigid flanges of the same number as said plurality of sides, said flanges being contiguous with at least a portion of said sides; and at least one substantially rigid engaging means integral with said rigid end cap, said engaging means having at least two fixedly spaced apart portions, a first portion forming a first camming surface for flexing said at least one of said plurality of sides in a first direction and also forming a protrusion engaging said at least one perforation, said second portion forming an opposed camming surface for flexing said at least one side in an opposite direction and also forming a retaining surface integral with said rigid end cap for preventing the disengagement of said perforation from said protrusion.
Claim 3
Dependent Claim
40 words
A container as in claim 1 wherein the protrusion is wedge shaped and comprises: a locking surface extending substantially perpendicularly from the flange; and a guiding surface extending from the outer most extension of said locking surface to the flange.
Claim 4
Dependent Claim
12 words
A container as in claim 2 wherein the guiding surface is convex.
Claim 5
Dependent Claim
48 words
A container as in claim 1 in which said retaining surface includes a pair of straddling members each comprising: a holding surface integral with the base portion and spaced from the flange in accordance with the thickness of the side to be held in proximity to the flange.
Claim 6
Dependent Claim
32 words
A container as in claim 4 wherein said pair of straddling members each further include: a guiding surface extending from the outer most extension of said holding surface away from said flange.
Claim 7
Dependent Claim
48 words
A container as in claim 1 in which said base portion includes: a raised portion forming a surface substantially parallel with at least portions of said flanges, and spaced from said flanges in accordance with the thickness of the side to be held in proximity to the flange.
Claim 8
Dependent Claim
37 words
A container as in claim 1 in which said base portion includes: a raised platform, said raised platform being in a plane inwardly from the periphery of said base portion and forming a plug for the container.
Claim 9
Dependent Claim
145 words
An end cap for a flexible sided container comprising: a base integral with at least one upwardly extending flange having inner and outer surfaces; and engaging means integral with said end cap and having at least two fixedly spaced apart portions, said first and second portions forming opposed camming surfaces; said engaging means being relatively rigid such that when a thin flexible member forming a side and having a perforation is inserted between said first and second portions, then said flexible member is flexed in a first direction by the camming action of said first portion, while being flexed in the opposite direction by the camming action of said second portion until the first portion is inserted in said perforation, thereby permitting said flexible member to become at least partially contiguous with said at least one flange and locked in place by said engaging means.
Claim 10
Dependent Claim
145 words
An end cap for a flexible sided container comprising: a base integral with at least one upwardly extending flange having inner and outer surfaces; and engaging means integral with said end cap and having at least two fixedly spaced apart portions, said first and second portions forming opposed camming surfaces; said engaging means being relatively rigid such that when a thin flexible member forming a side and having a perforation is inserted between said first and second portions, then said flexible member is flexed in a first direction by the camming action of said first portion, while being flexed in the opposite direction by the camming action of said second portion until the first portion is inserted in said perforation, thereby permitting said flexible member to become at least partially contiguous with said at least one flange and locked in place by said engaging means.
Claim 11
Dependent Claim
12 words
An end cap as in claim 8 wherein said base is polygonal.
Claim 12
Dependent Claim
12 words
An end cap as in claim 9 wherein said base is rectangular.
Claim 13
Dependent Claim
20 words
An end cap as in claim 9 wherein the number of flanges equals the number of sides to said polygon.
Claim 14
Dependent Claim
12 words
An end cap as in claim 8 wherein said base is non-polygonal.
Claim 15
Dependent Claim
12 words
An end cap as in claim 12 wherein said base is circular.
Claim 16
Dependent Claim
17 words
An end cap as in claim 13 wherein said at least one flange forms a complete wall.
Claim 17
Dependent Claim
133 words
An end cap as in claim 8 wherein said engaging means comprises: a retaining surface integral with said base portion and extending upwardly in proximity to said flange; a protrusion integral with said at least one flange and extending from a surface of said at least one flange, in proximity to and adapted to cooperate with said retaining surface; such that when a thin flexible member forming a side and having a perforation, is slid along the surface of said at least one flange, then said flexible member is deformed by the cooperation of said protrusion and said retaining surface until the protrusion is inserted in said perforation, thereby permitting said flexible member to become contiguous with at least some of said at least one flange and locked in place by said protrusion.
Claim 18
Dependent Claim
32 words
An end cap as in claim 15 wherein said protrusion has rounded edges shaped for facilitating the sliding of a thin flexible member, having a perforation, along the length of said flange.
Claim 19
Dependent Claim
22 words
An end cap as in claim 15 wherein said protrusion extends inwardly from the inner surface of said at least one flange.
Claim 20
Dependent Claim
36 words
An end cap as in claim 15 wherein the positions of the retaining surface and protrusion are reversed such that the protrusion becomes integral with the base and the retaining surface becomes integral with the flange.
Claim 21
Dependent Claim
118 words
An end cap for covering at least one open end of a container having a tubular central section, comprising: a base portion, forming a cover for the container, integral with a plurality of axially extending rigid flange portions with an inner surface having substantially the same crosssection as the outer surface of said tubular central section; and engaging means integral with said end cap and having first and second portions forming opposed camming surfaces; such that when said tubular central section having a perforation is inserted between said first and second portions, then said tubular central section is deformed until the first portion is inserted in said perforation, thereby interlocking said end cap and said tubular central section.
Claim 22
Dependent Claim
118 words
An end cap for covering at least one open end of a container having a tubular central section, comprising: a base portion, forming a cover for the container, integral with a plurality of axially extending rigid flange portions with an inner surface having substantially the same crosssection as the outer surface of said tubular central section; and engaging means integral with said end cap and having first and second portions forming opposed camming surfaces; such that when said tubular central section having a perforation is inserted between said first and second portions, then said tubular central section is deformed until the first portion is inserted in said perforation, thereby interlocking said end cap and said tubular central section.
References Cited (Backward Citations)
US1157041A
Cited
US2504850A
Cited
US2606586A
Cited
US2837236A
Cited
US2801039A
Cited
US2969160A
Cited
US2984382A
Cited
US3223278A
Cited
US3161345A
Cited
US3424341A
Cited
US3692204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |