US3669255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
End-capped cylindrical package
Assignee: Union Carbide Corp
•
Filing: 1969-12-29
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Granted: 1972-06-13
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Expires: 1989-12-29
Abstract
Abstract Cylindrical objects, particularly those with readily damaged ends such as rolls of sheeting and the like, are protected in special packaging comprising protective end caps and heat shrunk outer wrapping of plastic film which envelopes the cylindrical objects and the end caps.
Inventors
- 👤 Grantges J Raymus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:27
CPC Classifications
B; B65; B65D; B65D85/00; B65D85/67; B65D85/671; B65D85/672
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
88 words
A cylindrical package comprising a roll of sheeting wound on a core, said core being longer than the width of said sheeting, circular protective end caps of a diameter equal to or less than the outside diameter of said roll (on each end) axial holes in said caps whereby said caps are fitted over the protruding ends of said core, and an overwrap of heat-shrunk plastic film enveloping said roll and core and said caps, said film covering substantially all of the outer surfaces of said end caps.
Claim 2
Dependent Claim
88 words
A cylindrical package comprising a roll of sheeting wound on a core, said core being longer than the width of said sheeting, circular protective end caps of a diameter equal to or less than the outside diameter of said roll (on each end) axial holes in said caps whereby said caps are fitted over the protruding ends of said core, and an overwrap of heat-shrunk plastic film enveloping said roll and core and said caps, said film covering substantially all of the outer surfaces of said end caps.
Claim 3
Dependent Claim
12 words
A cylindrical package according to claim 1 wherein said core is hollow.
Claim 4
Dependent Claim
26 words
A cylindrical package according to claim 1 wherein said end caps are each of a diameter substantially the same as the outside diameter of said roll.
Claim 5
Dependent Claim
29 words
A cylindrical package according to claim 1 wherein said end caps are each of a diameter of from 75 to 100 percent of the outside diameter of said roll.
Claim 6
Dependent Claim
21 words
A cylindrical package according to claim 1, wherein said end caps are removably attached to the ends of said roll core.
Claim 7
Dependent Claim
32 words
A cylindrical package according to claim 1 wherein said end caps are made of a material selected from the group consisting of wood, composition board, plastic foam, molded plastic, metal and ceramic.
Claim 8
Dependent Claim
20 words
A cylindrical package according to claim 1 wherein said overwrap of heat shrinkable plastic film is a preformed seamless tube.
Claim 9
Dependent Claim
34 words
A cylindrical package according to claim 1 wherein said overwrap of heat shrunk plastic film is a sheet which has been wrapped around said roll of sheeting and heat sealed to form a tube.
Claim 10
Dependent Claim
14 words
A cylindrical package according to claim 1, wherein said heat-shrunk film is polyethylene film.
Claim 11
Dependent Claim
108 words
Process for packaging sheeting which comprises winding sheeting onto a hollow core to form a roll, said core being longer than the width of said sheeting, fitting circular protective end caps with axiaL holes over the ends of said core which protrude from the axial ends of said roll, placing said roll with attached end caps inside a tube of heat-shrinkable plastic film and applying sufficient heat to the exterior of said tube to shrink said plastic film tightly around said roll and end caps so that all of said cylindrical object and substantially all of said outer surfaces of said end caps are covered by said film.
Claim 12
Dependent Claim
108 words
Process for packaging sheeting which comprises winding sheeting onto a hollow core to form a roll, said core being longer than the width of said sheeting, fitting circular protective end caps with axiaL holes over the ends of said core which protrude from the axial ends of said roll, placing said roll with attached end caps inside a tube of heat-shrinkable plastic film and applying sufficient heat to the exterior of said tube to shrink said plastic film tightly around said roll and end caps so that all of said cylindrical object and substantially all of said outer surfaces of said end caps are covered by said film.
Claim 13
Dependent Claim
14 words
Process according to claim 10 wherein said tube of heat-shrinkable plastic film is seamless.
Claim 14
Dependent Claim
40 words
Process according to claim 10 wherein said tube of heat shrinkable plastic film is formed by wrapping a sheet of said film around said roll of sheeting and heat sealing said wrapped sheet along a seam to form said tube.
Claim 15
Dependent Claim
12 words
Process according to claim 10 wherein said heat-shrinkable film is polyethylene film.
References Cited (Backward Citations)
US1954848A
Cited
US1989053A
Cited
US2059267A
Cited
US2286500A
Cited
US2708031A
Cited
US3399761A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |