US4418834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Overcap ring with an integral peelable laminated structure
Assignee: DOUBLE H PLASTICS Inc SOUTHAPTON PA A PA CORP
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Filing: 1982-09-13
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Granted: 1983-12-06
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Expires: 2002-09-13
Abstract
Abstract A closure assembly for a container body comprising an overcap ring and an integral, peelable laminated structure consisting of a paperboard substrate, an electrically conductive layer, a first coating layer, and a second coating layer. The overcap ring with the laminated structure are adapted to be induction heat sealed to the container body.
Inventors
- 👤 Charles R. Helms
- 👤 Richard L. Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:24
CPC Classifications
B; B65; B65D; B65D43/00; B65D43/02; B65D43/0202; B65D43/0204; B65D43/0212; B32; B32B; B32B7/00; B32B7/04; B32B7/06; B32B15/00; B32B15/04; B32B29/00; B32B29/002; B65D51/00; B65D51/14; B65D51/145; B32B2307/00; B32B2307/30; B32B2307/31; B32B2435/00; B32B2435/02; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00064; B65D2543/00074; B65D2543/00092; B65D2543/00231; B65D2543/0024; B65D2543/00259; B65D2543/00314; B65D2543/00425; B65D2543/00444; B65D2543/00592; B65D2543/00601; B65D2543/00611; B65D2543/00648; B65D2543/00675; B65D2543/00685; B65D2543/00712; B65D2543/00722; B65D2543/0074; B65D2543/00787; B65D2543/00796
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
164 words
The closure assembly for a container comprising: a container body having an upper, open marginal portion; an overcap ring adapted for engagement with said container body and including a generally planar portion and a downwardly depending flange portion; a laminated structure consisting of (a) a paperboard substrate having an undersurface, (b) an electrically conductive layer having first and second surfaces, (c) a first coating layer having first and second surfaces, the first surface thereof being bonded to the first surface of said conductive layer, and the second surface thereof being bonded to the undersurface of said paperboard substrate, and (d) a second coating layer having first and second surfaces, the first surface thereof being bonded to said second surface of said conductive layer; said overcap ring being injection molded to said laminated structure to provide an integral peelable laminated structure; and interlocking engagement means disposed on said overcap ring and said container body for maintaining said overcap ring and container body in sealing engagement.
Claim 2
Dependent Claim
164 words
The closure assembly for a container comprising: a container body having an upper, open marginal portion; an overcap ring adapted for engagement with said container body and including a generally planar portion and a downwardly depending flange portion; a laminated structure consisting of (a) a paperboard substrate having an undersurface, (b) an electrically conductive layer having first and second surfaces, (c) a first coating layer having first and second surfaces, the first surface thereof being bonded to the first surface of said conductive layer, and the second surface thereof being bonded to the undersurface of said paperboard substrate, and (d) a second coating layer having first and second surfaces, the first surface thereof being bonded to said second surface of said conductive layer; said overcap ring being injection molded to said laminated structure to provide an integral peelable laminated structure; and interlocking engagement means disposed on said overcap ring and said container body for maintaining said overcap ring and container body in sealing engagement.
Claim 3
Dependent Claim
18 words
A closure assembly as claimed in claim 1, wherein said electrically conductive layer comprises a metal foil disc.
Claim 4
Dependent Claim
28 words
A closure assembly as claimed in claim 1, wherein said first coating layer is a tacky wax and said second coating layer is a releasable heat sealing material.
Claim 5
Dependent Claim
28 words
A closure assembly as claimed in claim 1, wherein said first coating layer is a weak adhesive and said second coating layer is a releasable heat sealing material.
Claim 6
Dependent Claim
26 words
A closure assembly as claimed in claim 1, wherein said first coating is a non-peelable adhesive and said second coating layer is a peelably, attached film.
Claim 7
Dependent Claim
24 words
A closure assembly as claimed in claim 1, wherein said upper, open marginal portion of said container body has a radially outwardly extending rim.
Claim 8
Dependent Claim
28 words
A closure assembly as claimed in claim 1, wherein said upper, open marginal portion of said container body has a radially inwardly extending rim portion with a recess.
Claim 9
Dependent Claim
23 words
A closure assembly as claimed in claim 1, wherein said upper, open marginal portion of said container body has an inwardly rolled rim.
Claim 10
Dependent Claim
23 words
A closure assembly as claimed in claim 1, wherein said upper, open marginal portion of said container body has an outwardly rolled rim.
Claim 11
Dependent Claim
23 words
A closure assembly as claimed in claim 1, wherein said upper, open marginal portion of said container body has a straight walled rim.
Claim 12
Dependent Claim
115 words
A closure assembly adapted to be heat sealed to a container comprising: a laminated structure consisting of (a) a primary substrate having an upper surface and an under surface, (b) an electrically conductive layer having first and second surfaces, (c) a first coating layer disposed between said under surface of said primary substrate and said first surface of said conductive layer, and (d) a second coating layer disposed on said second surface of said conductive layer and adapted for bonding said conductive layer to a container rim; and an overcap ring being injected molded to said laminated structure, said overcap ring having a generally planar portion bonded to said upper surface of said primary substrate.
Claim 13
Dependent Claim
115 words
A closure assembly adapted to be heat sealed to a container comprising: a laminated structure consisting of (a) a primary substrate having an upper surface and an under surface, (b) an electrically conductive layer having first and second surfaces, (c) a first coating layer disposed between said under surface of said primary substrate and said first surface of said conductive layer, and (d) a second coating layer disposed on said second surface of said conductive layer and adapted for bonding said conductive layer to a container rim; and an overcap ring being injected molded to said laminated structure, said overcap ring having a generally planar portion bonded to said upper surface of said primary substrate.
Claim 14
Dependent Claim
39 words
A closure assembly as claimed in claim 11, wherein said first coating layer comprises a weak adhesive so that removal of said overcap ring from the container rim will cause the conductive layer to remain on the container rim.
Claim 15
Dependent Claim
37 words
A closure assembly as claimed in claim 11, wherein said first coating layer comprises a tacky wax so that removal of said overcap ring from the container rim will peel the conductive layer from the container rim.
Claim 16
Dependent Claim
41 words
A closure assembly as claimed in claim 11, wherein said second coating layer is a releasable heat sealing material so that removal of said overcap ring from the container rim will cause the laminated structure to remain inside the overcap ring.
Claim 17
Dependent Claim
41 words
A closure assembly as claimed in claim 11, wherein said second coating layer is a peelably, attached film so that removal of said overcap ring from the container rim will cause the second coating layer to remain on the container rim.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-05 | 1987-06-06 | 1987-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-05 | 1991-06-06 | 1991-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-05 | 1995-06-06 | 1995-12-06 | $7700.00 | Window Closed / Lapsed |