US3648920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular member
Assignee: CLEVEPOST Inc A CORP OF OHIO
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Filing: 1968-11-20
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Granted: 1972-03-14
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Expires: 1988-11-20
Abstract
Abstract A tubular member with a cross section forming a three-sided figure, especially useful as a container reinforcement. The member is convolutely wound of fiber-containing sheet material and the fibers extend predominantly longitudinally of the member. When located in a corner of a box-like container or carton, the member provides substantial area contact with the container walls while occupying little volume and imparts a high degree of cubical rigidity to the container.
Inventors
- 👤 Paul W Stump
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:50
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/44; B65D5/50; B65D5/5028; B65D5/5033; Y; Y10; Y10S; Y10S229/00; Y10S229/915; Y10S229/918
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
101 words
In combination, a generally rectangular box-like container, an elongated three-sided tubular reinforcing member in a corner of said container in intimate contact over a substantial area along two sides with inside surfaces of two angularly related container walls forming said corner, and means securing said two sides of said member to said two angularly related walls at locations laterally outward from said corner, said member being substantially right isosceles triangular in cross section and comprised of convoluted fiber-containing sheet material in which the fibers extend predominantly longitudinally of the member and the convolutions are bonded together with a hardenable bonding material.
Claim 2
Dependent Claim
101 words
In combination, a generally rectangular box-like container, an elongated three-sided tubular reinforcing member in a corner of said container in intimate contact over a substantial area along two sides with inside surfaces of two angularly related container walls forming said corner, and means securing said two sides of said member to said two angularly related walls at locations laterally outward from said corner, said member being substantially right isosceles triangular in cross section and comprised of convoluted fiber-containing sheet material in which the fibers extend predominantly longitudinally of the member and the convolutions are bonded together with a hardenable bonding material.
Claim 3
Dependent Claim
93 words
In combination, a generally rectangular box-like container, an elongated three-sided tubular reinforcing member in a corner of said container in intimate contact along two sides with inside surfaces of two angularly related container walls forming said corner, and means securing said member to said two angularly related walls; the three sides of said member being outwardly curved transversely of their length, corner portions at junctures of said sides being integral therewith and rounded, and said member being comprised of convoluted fiber-containing sheet material in which the fibers extend predominantly longitudinally of the member.
Claim 4
Dependent Claim
93 words
In combination, a generally rectangular box-like container, an elongated three-sided tubular reinforcing member in a corner of said container in intimate contact along two sides with inside surfaces of two angularly related container walls forming said corner, and means securing said member to said two angularly related walls; the three sides of said member being outwardly curved transversely of their length, corner portions at junctures of said sides being integral therewith and rounded, and said member being comprised of convoluted fiber-containing sheet material in which the fibers extend predominantly longitudinally of the member.
Claim 5
Dependent Claim
27 words
The combination as set forth in claim 2, wherein said member is substantially right isosceles triangular in cross section and in which the convolutions are bonded together.
Claim 6
Dependent Claim
49 words
The combination as set forth in claim 3, including an additional elongated three-sided tubular reinforcing member located against a container wall, intermediate to the corner portions of the container and parallel to the first said member, with a side of said additional member being secured against the container wall.
References Cited (Backward Citations)
US1595856A
Cited
US1802188A
Cited
US1928009A
Cited
US1808530A
Cited
US2130498A
Cited
US2187382A
Cited
DE1119200B
Cited
US3086689A
Cited
US3341106A
Cited
US3433354A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |