US5083995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming a protective chime overlay
Assignee: Sonoco Products Co
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Filing: 1991-03-04
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Granted: 1992-01-28
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Expires: 2011-03-04
Abstract
Abstract A corrosion resistent protective plastic overlay is intimately engaged with the chime of a fibre drum and extends from an inner edge portion thermally bonded to the drum lining over the bead and into the exterior chime groove. The overlay is fusion bonded to the chime throughout the full extent of the surface-to-surface engagement therebetween.
Inventors
- 👤 Gerald A. Gordon
- 👤 John K. Shepard
- 👤 William L. Swihart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:59
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/44; B29C65/46; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/13; B29C66/131; B29C66/135; B29C66/50; B29C66/51; B29C66/53; B29C66/534; B29C66/5344; B29C66/61; B29C66/612; B29C69/00; B29C69/02; B65; B65D; B65D3/00; B65D3/28; B65D3/30; B29C66/70; B29C66/74; B29C66/748; B29C66/7486
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
97 words
The method of forming a protective means for the chime of a fibre drum comprising the steps of forming, as an overlay, a length of extruded corrosive resistant plastic with a cross-sectional profile corresponding to the exterior of the chime and with a continuous inner surface, extending the formed overlay about the chime and fitting the overlay to and over the chime with said inner surface being in intimate surface-to-surface engagement with the chime for substantially the extent of said inner surface, and bonding said inner surface to said chime throughout the extent of the surface-to-surface engagement.
Claim 2
Independent Claim
97 words
The method of forming a protective means for the chime of a fibre drum comprising the steps of forming, as an overlay, a length of extruded corrosive resistant plastic with a cross-sectional profile corresponding to the exterior of the chime and with a continuous inner surface, extending the formed overlay about the chime and fitting the overlay to and over the chime with said inner surface being in intimate surface-to-surface engagement with the chime for substantially the extent of said inner surface, and bonding said inner surface to said chime throughout the extent of the surface-to-surface engagement.
Claim 3
Dependent Claim
17 words
The method of claim 1 wherein the bonding of the overlay to said chime is by fusion.
Claim 4
Dependent Claim
23 words
The method of claim 2 including the step of subjecting the exterior of the overlay to pressure as the overlay is fusion bonded.
Claim 5
Dependent Claim
36 words
The method of claim 2 wherein said drum has an interior plastic lining, and including the step of bonding on edge portion of the overlay to the lining below the chime and continuously about the drum.
Claim 6
Dependent Claim
22 words
The method of claim 4 including forming said length of extruded plastic into a continuous ring prior to fitting over the chime.
Claim 7
Dependent Claim
22 words
The method of claim 4 wherein the bonding of the overlay to the lining includes introducing a continuous bead of adhesive therebetween.
Claim 8
Dependent Claim
15 words
The method of claim 2 wherein the fusion bonding includes induction heating of the chime.
Claim 9
Dependent Claim
19 words
The method of claim 7 including rotating the drum with chime thereon during the induction heating of the chime.
Claim 10
Dependent Claim
24 words
The method of claim 1 including forming said length of extruded plastic into a continuous ring prior to fitting said overlay over the chime.
Claim 11
Dependent Claim
22 words
The method of claim 9 wherein the fitting of said overlay to the chime includes snap mounting said overlay to the chime.
Claim 12
Dependent Claim
36 words
The method of claim 1 wherein said drum has an interior plastic lining, and including the step of bonding an edge portion of the overlay to the lining below the chime and continuously about the drum.
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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) | 1995-01-27 | 1995-07-29 | 1996-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-27 | 1999-07-29 | 2000-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-27 | 2003-07-29 | 2004-01-28 | $7700.00 | Window Closed / Lapsed |