US4137690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for wrapping paper rolls
Assignee: Westvaco Corp
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Filing: 1977-09-14
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Granted: 1979-02-06
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Expires: 1997-09-14
Abstract
Abstract Large mill reels of paper are protectively wrapped for shipment by a method which first caps the reel end-faces with a header disk having a diameter greater than the reel diameter. The flange of excess disk material is pleated and pressed into a band of adhesive applied about the reel circumference near the respective end-face. Subsequently, a second band of adhesive is applied to the two pleated and pressed flanges around the reel circumference and a circumferential surface wrap of width substantially equal to the axial length of the subject reel is applied thereabout.
Inventors
- 👤 James A. Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:58
CPC Classifications
B; B65; B65B; B65B25/00; B65B25/14; B65B25/146; B65B25/148
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
186 words
Apparatus for protectively wrapping a cylindrical reel of paper with header sheets of greater surface area than respective end-faces of said reel, said header sheets area exceeding said end-face area by an excess area which is folded upon the cylindrical surface of said reel and overlaid with a circumferentially wrapped sheet, said apparatus comprising first means to axially rotate said reel in a laterally stationary position and second means to secure said header sheets in position against said reel end-faces simultaneous with said reel rotation, the improvement comprising: pleating wheel means to fold said excess header area over the edge junction between said reel end-faces and said cylindrical surface, said excess area being sequentially pleated and creased against said cylindrical surface as said reel revolves about said reel axis, said pleating wheel means comprising a plurality of finger elements projecting radially from respective second axes of rotation, said second axes of rotation being skewed to the respective planes of corresponding reel end-faces whereby rotational planes traversed by said finger elements converge to intersection with said end-face planes and said excess area portion thereof at acute angles.
Claim 2
Dependent Claim
186 words
Apparatus for protectively wrapping a cylindrical reel of paper with header sheets of greater surface area than respective end-faces of said reel, said header sheets area exceeding said end-face area by an excess area which is folded upon the cylindrical surface of said reel and overlaid with a circumferentially wrapped sheet, said apparatus comprising first means to axially rotate said reel in a laterally stationary position and second means to secure said header sheets in position against said reel end-faces simultaneous with said reel rotation, the improvement comprising: pleating wheel means to fold said excess header area over the edge junction between said reel end-faces and said cylindrical surface, said excess area being sequentially pleated and creased against said cylindrical surface as said reel revolves about said reel axis, said pleating wheel means comprising a plurality of finger elements projecting radially from respective second axes of rotation, said second axes of rotation being skewed to the respective planes of corresponding reel end-faces whereby rotational planes traversed by said finger elements converge to intersection with said end-face planes and said excess area portion thereof at acute angles.
Claim 3
Dependent Claim
42 words
Apparatus as described by claim 1 wherein said pleating wheel means comprises an axle mounted hub having a plurality of resilient fingers projecting radially therefrom, the rotational plane of said fingers positioned in skewed alignment to respective end-face planes of said reel.
Claim 4
Dependent Claim
68 words
Apparatus as described by claim 1 wherein said pleating wheel means comprises an axle mounted frustum of a cone means, said cone means having a plurality of spoked projections extending normally from the surface of said cone, said projections being substantially equally spaced about a circular surface element of said cone whereby a locus of axial rotation of said projections tangentially meets the cylindrical surface of said reel.
Claim 5
Dependent Claim
24 words
Apparatus as described by claim 3 wherein the rotational locus of said conical surface tangentially meets the plane of an end-face of said reel.
Claim 6
Dependent Claim
28 words
Apparatus as described by claim 4 wherein said projections extend parallel with the axis of said reel at a point of tangential meeting with said cylindrical reel surface.
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-05 | 1982-08-07 | 1983-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-05 | 1986-08-07 | 1987-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-05 | 1990-08-07 | 1991-02-06 | $7700.00 | Window Closed / Lapsed |