US4162023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dust cover for flip top opening containers
Assignee: Individual
•
Filing: 1978-10-23
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Granted: 1979-07-24
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Expires: 1998-10-23
Abstract
Abstract There is disclosed a dust cover which has multiple layers for integrating the ring pull of a flip top opener, which permits a user to simultaneously remove the cover and opener, and which utilizes the escaping carbonated gas to assist in removal of the cover.
Inventors
- 👤 Heinz J. Faltermeier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:59
CPC Classifications
B; B65; B65D; B65D51/00; B65D51/18; B65D51/20; B65D51/22; B65D51/221; B65D51/222; B65D17/00; B65D17/28; B65D17/401; B65D17/4012; B65D2251/00; B65D2251/0003; B65D2251/0006; B65D2251/0018; B65D2251/0068; B65D2251/0071
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
97 words
A dust cover for flip-top opening containers having a pull-tab comprising a skirt member consisting of a substantially flat narrow band of plastic material joined at its end to form a ring; and a multi-layered substantially flat-top surface member having a first top layer contiguously joined along a majority of its edge to a top edge of said ring and forming free unconnected edge; a second layer contiguous with said top layer joined along said free edge and folded thereunder retaining between said top layer and said second layer said pull-tab to form a multi-layer retention member.
Claim 2
Dependent Claim
97 words
A dust cover for flip-top opening containers having a pull-tab comprising a skirt member consisting of a substantially flat narrow band of plastic material joined at its end to form a ring; and a multi-layered substantially flat-top surface member having a first top layer contiguously joined along a majority of its edge to a top edge of said ring and forming free unconnected edge; a second layer contiguous with said top layer joined along said free edge and folded thereunder retaining between said top layer and said second layer said pull-tab to form a multi-layer retention member.
Claim 3
Dependent Claim
51 words
The invention recited in claim 1 further including a third layer joined to said second layer at a free edge thereof and joined to said top edge of said ring forming thereby a pressure tight dust cover which captures gases released by said container upon upward movement of said retention member.
Claim 4
Dependent Claim
24 words
The invention recited in claim 2 further including in said third layer a shaped downwardly extending dentent surface for sealing aperatures in said container.
Claim 5
Dependent Claim
27 words
The invention of claim 2 wherein said skirt member contains at least one inwardly shaped circumferential groove for gas tight sealing of said container by said cover.
Claim 6
Dependent Claim
62 words
The invention of claim 1 wherein the free edges of said retention member are joined to said edge of said ring forming a chord with reference the circular surface of said container such that a perpendicular line therefrom through a center of said circular surface is not in alignment with a centerline through said flip-top opening pull-tab drawn through the same center.
Claim 7
Dependent Claim
85 words
A sanitary plastic cover for a metalized container having a flip-top opener with a pull-tab comprising a circular ring member adapted to form a skirt about said container, said member member consisting substantially of a relatively narrow band joined at ends thereof to form said ring member, a multi layered retention member comprising an upper and lower surface members between which said pull-tab is immovable retained, and ends of said upper and lower surface members being both joined at opposite sides to said ring member.
Claim 8
Dependent Claim
85 words
A sanitary plastic cover for a metalized container having a flip-top opener with a pull-tab comprising a circular ring member adapted to form a skirt about said container, said member member consisting substantially of a relatively narrow band joined at ends thereof to form said ring member, a multi layered retention member comprising an upper and lower surface members between which said pull-tab is immovable retained, and ends of said upper and lower surface members being both joined at opposite sides to said ring member.
Claim 9
Dependent Claim
47 words
The invention recited in claim 6 further including additional layers joined to said upper and lower surface members and to said ring member forming thereby a continguous cover with a downwardly extending skirt which is pressure tight up to pressures normally encountered in containers holding carbonated beverages.
References Cited (Backward Citations)
US3204805A
Cited
US4125203A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-07-23 | 1983-01-22 | 1983-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-07-23 | 1987-01-22 | 1987-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-07-23 | 1991-01-22 | 1991-07-24 | $7700.00 | Window Closed / Lapsed |