US5522518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure device for a cylindrical housing
Assignee: CA Greiner and Soehne GmbH
•
Filing: 1993-10-04
•
Granted: 1996-06-04
•
Expires: 2013-10-04
Abstract
Abstract A closure for a tube is a two piece stopper. The inner piece extends into the tube and the outer piece engages the exterior of the tube's sidewall. The outer piece has an inwardly extending shoulder which supports a projection of the inner piece. The two pieces are held together by a C-shaped washer that rests above the inner piece and in a channel formed in the outer piece.
Inventors
- 👤 Franz Konrad
- 👤 Gunther Pakanecz
- 👤 Manfred Lederer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:45
CPC Classifications
B; B65; B65D; B65D51/00; B65D51/002; Y; Y10; Y10S; Y10S215/00; Y10S215/03
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
309 words
In combination with a cylindrical housing having a longitudinal axis, a closed end and an open end opposite thereto, (a) a tubular closure cap having a coincident longitudinal axis and defining a cylindrical inner surface, the cap fitting over the open housing end and including (1) a transverse end wall extending over the open housing end and defining a bore, (b) a sealing device arranged between the bore and the open cylindrical housing end, the sealing device having (1) an outer cylindrical sealing surface mating with an inner cylindrical bearing surface of the cylindrical housing adjacent the open end and (2) a pierceable transverse sealing element axially aligned with the bore, and (c) a coupling device for coupling the sealing device to the closure cap and arranged axially close to the sealing element, the coupling device including (1) two axially spaced locking extensions projecting radially inwardly from the inner surface of the tubular closure cap, the two locking extensions defining a locating area therebetween, and (2) a further locking extension projecting outwardly from the sealing device intermediate the two axially spaced locking extensions into the locating area, one of the two inwardly projecting locking extensions being arranged between the open cylindrical housing end and the outwardly projecting locking extension, and the other inwardly projecting locking extension defining a groove with the outwardly projecting locking extension, and (3) a ring arranged in the groove, the outwardly projecting locking extension being in engagement with the one inwardly projecting locking extension and the ring, and the ring being in engagement with the outwardly projecting locking extension and the other inwardly projecting locking extension whereby the sealing device is coupled to the closure cap, and (d) an upper surface of the sealing device being located below the other inwardly projecting locking extension whereby said locking extension defines a sump above the sealing device.
Claim 2
Dependent Claim
309 words
In combination with a cylindrical housing having a longitudinal axis, a closed end and an open end opposite thereto, (a) a tubular closure cap having a coincident longitudinal axis and defining a cylindrical inner surface, the cap fitting over the open housing end and including (1) a transverse end wall extending over the open housing end and defining a bore, (b) a sealing device arranged between the bore and the open cylindrical housing end, the sealing device having (1) an outer cylindrical sealing surface mating with an inner cylindrical bearing surface of the cylindrical housing adjacent the open end and (2) a pierceable transverse sealing element axially aligned with the bore, and (c) a coupling device for coupling the sealing device to the closure cap and arranged axially close to the sealing element, the coupling device including (1) two axially spaced locking extensions projecting radially inwardly from the inner surface of the tubular closure cap, the two locking extensions defining a locating area therebetween, and (2) a further locking extension projecting outwardly from the sealing device intermediate the two axially spaced locking extensions into the locating area, one of the two inwardly projecting locking extensions being arranged between the open cylindrical housing end and the outwardly projecting locking extension, and the other inwardly projecting locking extension defining a groove with the outwardly projecting locking extension, and (3) a ring arranged in the groove, the outwardly projecting locking extension being in engagement with the one inwardly projecting locking extension and the ring, and the ring being in engagement with the outwardly projecting locking extension and the other inwardly projecting locking extension whereby the sealing device is coupled to the closure cap, and (d) an upper surface of the sealing device being located below the other inwardly projecting locking extension whereby said locking extension defines a sump above the sealing device.
Claim 3
Dependent Claim
15 words
In the combination of claim 1, the sealing device being formed from a gas-tight rubber.
Claim 4
Dependent Claim
13 words
In the combination of claim 2, wherein the rubber is a silicone rubber.
Claim 5
Dependent Claim
26 words
In the combination of claim 1, a gas-barrier layer coating an outer surface of the cylindrical housing between the closed end and the inner bearing surface.
Claim 6
Dependent Claim
44 words
In the combination of claim 1, wherein the ring is C-shaped and elastic in a radial direction, the groove facing the sealing device in a plane extending perpendicularly to the longitudinal axis, and the ring having a width exceeding the depth of the groove.
Claim 7
Dependent Claim
13 words
In the combination of claim 1, wherein the sealing device is a stopper.
Claim 8
Dependent Claim
51 words
In the combination of claim 1, the two inwardly projecting locking extensions being connected to the closure cap for movement therewith, and the outwardly projecting locking extension being connected to the sealing device for movement therewith and preventing rotation and axial displacement of the sealing device relative to the closure cap.
Claim 9
Dependent Claim
40 words
In the combination of claim 7, the outwardly projecting extension being a flange radially protruding beyond the cylindrical sealing surface of the sealing device adjacent the transverse end wall by a distance approximating the wall thickness of the cylindrical housing.
Claim 10
Dependent Claim
23 words
In the combination of claim 1, the two radially inwardly projecting locking extensions being flanges forming shoulders engaged by the further locking extension.
References Cited (Backward Citations)
US3017050A
Cited
US3088615A
Cited
US3709395A
Cited
US3937211A
Cited
CH580962A5
Cited
US4089432A
Cited
US4205754A
Cited
DK142679A
Cited
DE3119908A1
Cited
US4569457A
Cited
EP0102851A2
Cited
US4635807A
Cited
EP0129029A1
Cited
US4465200A
Cited
EP0150172A2
Cited
US4652429A
Cited
US4583652A
Cited
US4637520A
Cited
EP0257498A2
Cited
US5000804A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-06-04 | 1999-12-04 | 2000-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-06-04 | 2003-12-04 | 2004-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-06-04 | 2007-12-04 | 2008-06-04 | $7700.00 | Window Closed / Lapsed |