US4607759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing cap having frangible means
Assignee: Lars International SA
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Filing: 1985-05-08
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Granted: 1986-08-26
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Expires: 2005-05-08
Abstract
Abstract A pilfer-proof sealing cap for use with keg barrels is arranged to fit over the disc on the barrel on which the tapping valve is mounted, and comprises a cover plate and a cylindrical skirt depending therefrom wherein the skirt includes inwardly sprung locking elements which engage under the disc. Inspection windows may be provided in order to check the condition of the locking elements which are arranged to break-off if the cap is removed or tampered with.
Inventors
- 👤 Klaus Boetzkes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:13
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/32; B65D41/46; B65D41/48; B65D51/00; B65D51/18; B65D55/00; B65D55/02; B65D55/024; B65D55/06; B65D55/08; B65D55/0863; B65D59/00; B65D59/06; B67; B67D; B67D1/00; B67D1/08; B67D1/12; B67D1/125; B65D2401/00; B65D2401/15; B65D2401/40; B65D2401/45
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
78 words
A sealing cap made from plastic material for use on valves in keg-barrels wherein a disc is provided for mounting a valve on a barrel, comprising: a cover plate; a cylindrical guideway depending from said cover plate; a plurality of locking elements on said cylindrical guideway biased inwardly of said guideway for gripping engagement under said disc; and a thin fracture zone adjacent an underneath part of said cylindrical guideway connecting each locking element to said cylindrical guideway.
Claim 2
Dependent Claim
78 words
A sealing cap made from plastic material for use on valves in keg-barrels wherein a disc is provided for mounting a valve on a barrel, comprising: a cover plate; a cylindrical guideway depending from said cover plate; a plurality of locking elements on said cylindrical guideway biased inwardly of said guideway for gripping engagement under said disc; and a thin fracture zone adjacent an underneath part of said cylindrical guideway connecting each locking element to said cylindrical guideway.
Claim 3
Dependent Claim
28 words
A cap as claimed in claim 1 wherein means are provided on said cap to allow said locking elements to be visible from the exterior of the cap.
Claim 4
Dependent Claim
25 words
A cap as claimed in claim 2 wherein said means to allow visibility of said locking elements comprises inspection windows for inspecting the locking elements.
Claim 5
Dependent Claim
17 words
A cap as claimed in claim 3 wherein said inspection windows are arranged in said cylindrical guideway.
Claim 6
Dependent Claim
28 words
A cap as claimed in claim 1, wherein guide ribs extending parallel to the axis of said cylindrical guideway are provided on the interior of said cylindrical guideway.
Claim 7
Dependent Claim
15 words
A cap as claimed in claim 1 wherein each fracture zone has varying wall thicknesses.
Claim 8
Dependent Claim
28 words
A cap as claimed in claim 1 wherein at least one rupture line is provided in said cover plate extending across the entire width of said cover plate.
Claim 9
Dependent Claim
91 words
A sealing cap made from plastic material for use on valves in keg-barrels wherein a disc is provided for mounting a valve on a barrel, comprising: a cover plate; a cylindrical guideway depending from said cover plate; a plurality of locking elements on said cylindrical guideway biased inwardly of said guideway for gripping engagement under said disc; and a plurality of rupture lines spaced around the circumference of said cylindrical guideway to provide a break off section on said cylindrical guideway, said locking elements being connected to said break off section.
Claim 10
Dependent Claim
91 words
A sealing cap made from plastic material for use on valves in keg-barrels wherein a disc is provided for mounting a valve on a barrel, comprising: a cover plate; a cylindrical guideway depending from said cover plate; a plurality of locking elements on said cylindrical guideway biased inwardly of said guideway for gripping engagement under said disc; and a plurality of rupture lines spaced around the circumference of said cylindrical guideway to provide a break off section on said cylindrical guideway, said locking elements being connected to said break off section.
Claim 11
Dependent Claim
16 words
A cap as claimed in claim 8 wherein said rupture lines extend between said locking elements.
Claim 12
Dependent Claim
28 words
A cap as claimed in claim 8 wherein means are provided on said cap to allow said locking elements to be visible from the exterior of the cap.
Claim 13
Dependent Claim
25 words
A cap as claimed in claim 10 wherein said means to allow visibility of said locking elements comprises inspection windows for inspecting the locking elements.
Claim 14
Dependent Claim
17 words
A cap as claimed in claim 11 wherein said inspection windows are arranged in said cylindrical guideway.
Claim 15
Dependent Claim
28 words
A cap as claimed in claim 8, wherein guide ribs extending parallel to the axis of said cylindrical guideway are provided on the interior of said cylindrical guideway.
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) | 1989-08-25 | 1990-02-24 | 1990-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-25 | 1994-02-24 | 1994-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-25 | 1998-02-24 | 1998-08-26 | $7700.00 | Window Closed / Lapsed |