Patent US3747746A successfully refreshed from Google Patents.
US3747746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of enclosing a package of flexible material and package produced thereby
Assignee: Windings Inc
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Filing: 1971-05-24
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Granted: 1973-07-24
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Expires: 1991-05-24
Abstract
Abstract A package of flexible material of the universal type having a radial opening into the axial opening through which the inner end of the material is led out is wound on a collapsible mandrel. After the collapsible mandrel has been slightly collapsed, end members are positioned on the mandrel and are pushed towards each other to compact the package. The end members are of slightly greater diameter than the package. A tube of shrink-wrap material is then applied over the package extending slightly beyond the end members. Heat is applied by a gun to the end portions of the sleeve to produce a slight shrinking around the edges of the end members and then to the remainder of the sleeve to shrink the tube on the package. Rings are then applied at each end, against the end members, these rings having an outer diameter slightly less than the end members and having a central opening of substantially less diameter than the diameter of the holes in the end members. Heat is then applied to the ends of the package to shrink the shrink-wrap material inwardly over the end members and rings.
Inventors
- 👤 N Bavaro
- 👤 J Newman
- 👤 R Zajac
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:04
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/002; B65D75/004; B65D85/00; B65D85/67; B65D85/671; B65D85/672; B65D85/675; B65D85/676; B65H; B65H55/00; B65H55/04; B65H55/046
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
130 words
Method of forming a package of flexible material of the universal type having a radial opening into the central axial opening through which the inner end of the material is led out which comprises winding a package of such material on a collapsible mandrel, applying relatively rigid end pieces at each end of the package slightly collapsing the mandrel, pushing said end pieces against the ends of the package to produce a decrease in the length thereof, applying a tube of shrink-wrap material around the package having a length slightly greater than the length of the package and shrinking such material upon the package and around the ends thereof to a sufficient extent to engage over said end pieces and hold them in position against the walls of the package.
Claim 2
Dependent Claim
130 words
Method of forming a package of flexible material of the universal type having a radial opening into the central axial opening through which the inner end of the material is led out which comprises winding a package of such material on a collapsible mandrel, applying relatively rigid end pieces at each end of the package slightly collapsing the mandrel, pushing said end pieces against the ends of the package to produce a decrease in the length thereof, applying a tube of shrink-wrap material around the package having a length slightly greater than the length of the package and shrinking such material upon the package and around the ends thereof to a sufficient extent to engage over said end pieces and hold them in position against the walls of the package.
Claim 3
Dependent Claim
22 words
A method as claimed in claim 1, in which the end pieces are discs having a diameter slightly greater than the package.
Claim 4
Dependent Claim
34 words
A method as claimed in claim 1, in which the shrinking includes the step of heating the shrink-wrap material while applying greater heat to central portions of the package than to the ends thereof.
Claim 5
Dependent Claim
40 words
A process as claimed in claim 1, in which said package has ridges extending from the outer surface thereof at the cross-over points, which includes shrinking the shrink-wrap material to a greater degree between such ridges than at the ridges.
Claim 6
Dependent Claim
81 words
A process as claimed in claim 1, in which the end pieces have central openings therein of the same diameter as the axial opening, which comprises shrinking the shrink-wrap material over the end pieces only partially, applying to the ends of the package retaining members which extend inwardly to a substantially greater distance than the inner edges of the openings in the end pieces, and thereafter shrinking the ends of the shrink-wrap over both the end pieces and the retaining members.
Claim 7
Dependent Claim
73 words
A package of flexible material of the universal type having a radial opening therethrough into the axial opening through which the inner end of the material is led out, having at each end of the package a ring of relatively rigid flat material and having a tube of shrink-wrap material shrunk against the wall of the package and over the ends thereof to retain said rings in position, said package being longitudinally compressed.
Claim 8
Dependent Claim
73 words
A package of flexible material of the universal type having a radial opening therethrough into the axial opening through which the inner end of the material is led out, having at each end of the package a ring of relatively rigid flat material and having a tube of shrink-wrap material shrunk against the wall of the package and over the ends thereof to retain said rings in position, said package being longitudinally compressed.
Claim 9
Dependent Claim
24 words
A package as claimed in claim 6, in which the rings have an outside diameter slightly greater than the outside diameter of the package.
Claim 10
Dependent Claim
40 words
A package as claimed in claim 6, having ridges running around the same as the cross-over points of the flexible material, And having the shrink-wrap material shrunk less strongly over said ridges than over the remaining wall of the package.
Claim 11
Dependent Claim
70 words
A package as claimed in claim 6, in which the inner diameter of the rings is equal to the diameter of the axial opening in the package, and retaining members of flat rigid material secured by the shrink-wrap on each end wall of the package overlying said rings and extending inwardly towards the center of the package substantially further than the inside wall of the axial opening of the package.
Claim 12
Dependent Claim
119 words
Method of forming a package of flexible material of the universal type having a radial opening into the central axial opening through which the inner end of the material is led out which comprises winding a package of such material, applying relatively rigid end pieces at each end of the package, applying a tube of shrink-wrap material around the package having a length slightly greater than the length of the package and shrinking such material upon the package and around the ends thereof to a sufficient extent to engage over said end pieces and hold them in position against the walls of the package while applying greater heat to central portions of the package than to the ends thereof.
Claim 13
Dependent Claim
119 words
Method of forming a package of flexible material of the universal type having a radial opening into the central axial opening through which the inner end of the material is led out which comprises winding a package of such material, applying relatively rigid end pieces at each end of the package, applying a tube of shrink-wrap material around the package having a length slightly greater than the length of the package and shrinking such material upon the package and around the ends thereof to a sufficient extent to engage over said end pieces and hold them in position against the walls of the package while applying greater heat to central portions of the package than to the ends thereof.
Claim 14
Dependent Claim
137 words
Method of forming a package of flexible material of the universal type having a radial opening into the central axial opening through which the inner end of the material is led out which comprises winding a package of such material, applying relatively rigid end pieces at each end of the pacakge, applying a tube of shrink-wrap material around the package having a length slightly greater than the length of the package and shrinking such material upon the package and around the ends thereof to a sufficient extent to engage over said end pieces and hold them in position against the walls of the package, said package having ridges extending from the outer surface thereof at the cross-over points, and the shrinking including shrinking the shrink-wrap material to a greater degree between such ridges than at the ridges.
Claim 15
Dependent Claim
137 words
Method of forming a package of flexible material of the universal type having a radial opening into the central axial opening through which the inner end of the material is led out which comprises winding a package of such material, applying relatively rigid end pieces at each end of the pacakge, applying a tube of shrink-wrap material around the package having a length slightly greater than the length of the package and shrinking such material upon the package and around the ends thereof to a sufficient extent to engage over said end pieces and hold them in position against the walls of the package, said package having ridges extending from the outer surface thereof at the cross-over points, and the shrinking including shrinking the shrink-wrap material to a greater degree between such ridges than at the ridges.
Claim 16
Dependent Claim
141 words
Method of forming a package of flexible material of the universal type having a radial opening into the central axial opening through which the inner end of the material is led out which comprises winding a package of such material, applying relatively rigid end pieces at each end of the package, the end pieces having central openings therein of the same diameter as the axial opening, applying a tube of shrink-wrap material around the package having a length slightly greater than the length of the package, shrinking the shrink-wrap material over the end pieces only partially, applying to the ends of the package retaining members which extend inwardly to a substantially greater distance than the inner edges of the openings in the end pieces, and thereafter shrinking the ends of the shrink-wrap over both the end pieces and the retaining members.
Claim 17
Dependent Claim
141 words
Method of forming a package of flexible material of the universal type having a radial opening into the central axial opening through which the inner end of the material is led out which comprises winding a package of such material, applying relatively rigid end pieces at each end of the package, the end pieces having central openings therein of the same diameter as the axial opening, applying a tube of shrink-wrap material around the package having a length slightly greater than the length of the package, shrinking the shrink-wrap material over the end pieces only partially, applying to the ends of the package retaining members which extend inwardly to a substantially greater distance than the inner edges of the openings in the end pieces, and thereafter shrinking the ends of the shrink-wrap over both the end pieces and the retaining members.
Claim 18
Dependent Claim
103 words
A package of flexible material of the universal type having a radial opening therethrough into the axial opening through which the inner end of the material is led out, having at each end of the package a ring of relatively rigid flat material and having a tube of shrink-wrap material shrunk against the wall of the package and over the ends thereof to retain said rings in position, said package having ridges running around the same as the cross-over points of the flexible material, and having the shrink-wrap material shrunk less strongly over said ridges than over the remaining wall of the package.
Claim 19
Dependent Claim
103 words
A package of flexible material of the universal type having a radial opening therethrough into the axial opening through which the inner end of the material is led out, having at each end of the package a ring of relatively rigid flat material and having a tube of shrink-wrap material shrunk against the wall of the package and over the ends thereof to retain said rings in position, said package having ridges running around the same as the cross-over points of the flexible material, and having the shrink-wrap material shrunk less strongly over said ridges than over the remaining wall of the package.
Claim 20
Dependent Claim
129 words
A package of flexible material of the universal type having a radial opening therethrough into the axial opening trough which the inner end of the material is led out, having at each end of the package a ring of relatively rigid flat material and having a tube of shrink-wrap material shrunk against the wall of the package and over the ends thereof to retain said rings in position, the inner diameter of the rings being equal to the diameter of the axial opening in the package, and retaining members of flat rigiD material secured by the shrink-wrap on each end wall of the package overlying said rings and extending inwardly towards the center of the package substantially further than the inside wall of the axial opening of the package.
Claim 21
Dependent Claim
129 words
A package of flexible material of the universal type having a radial opening therethrough into the axial opening trough which the inner end of the material is led out, having at each end of the package a ring of relatively rigid flat material and having a tube of shrink-wrap material shrunk against the wall of the package and over the ends thereof to retain said rings in position, the inner diameter of the rings being equal to the diameter of the axial opening in the package, and retaining members of flat rigiD material secured by the shrink-wrap on each end wall of the package overlying said rings and extending inwardly towards the center of the package substantially further than the inside wall of the axial opening of the package.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-23 | 1977-01-22 | 1977-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-23 | 1981-01-22 | 1981-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-23 | 1985-01-22 | 1985-07-24 | $7700.00 | Window Closed / Lapsed |