Patent US4572397A successfully refreshed from Google Patents.
US4572397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container for chemicals
Assignee: Gruenbeck Wasseraufbereitung GmbH
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Filing: 1985-01-28
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Granted: 1986-02-25
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Expires: 2005-01-28
Abstract
Abstract A dirt and bacteria tight connection between a container for chemicals and the suction pipe of a metering pump is disclosed, which may in particular be used for the treatment of drinking water. In this way it is achieved that only degerminated air may enter the interior of the container when sucking metering fluid from the container.
Inventors
- 👤 Hans Arens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:22
CPC Classifications
B; B67; B67D; B67D1/00; B67D1/02; B65; B65D; B65D47/00; B65D47/04; B65D47/06; B65D47/10; B65D47/103
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
148 words
Container for chemicals comprising a portion forming an opening for receiving a tube adapted to be entered into the container and leading to a metering pump and a headpiece connectable to the said portion, wherein said headpiece comprises sealing means surrounding the tube to be entered and wherein there is provided an air path passing between said portion and said headpiece, said air path ending in the interior of the container passing between said sealing means and said portion and a filter means connecting said air path with the interior of the container and closing means for closing said opening, said filter means being held between said portion and said headpiece in a position between said portion and said sealing means at the outside of said closing means, whereby said filter means is prevented from contact with the chemicals before opening said closing means for entering said tube.
Claim 2
Dependent Claim
148 words
Container for chemicals comprising a portion forming an opening for receiving a tube adapted to be entered into the container and leading to a metering pump and a headpiece connectable to the said portion, wherein said headpiece comprises sealing means surrounding the tube to be entered and wherein there is provided an air path passing between said portion and said headpiece, said air path ending in the interior of the container passing between said sealing means and said portion and a filter means connecting said air path with the interior of the container and closing means for closing said opening, said filter means being held between said portion and said headpiece in a position between said portion and said sealing means at the outside of said closing means, whereby said filter means is prevented from contact with the chemicals before opening said closing means for entering said tube.
Claim 3
Dependent Claim
44 words
Container of claim 1, wherein said sealing means is formed as a packing washer surrounding said tube to be received, said packing washer covering said filter means towards the exterior, and wherein said filter means is held between said portion and said head piece.
Claim 4
Dependent Claim
35 words
Container of claim 1 or 2, wherein said opening is sealed by a sealing element, which is impervious for said chemicals, and wherein said filter means is disposed on the outside of said sealing element.
Claim 5
Dependent Claim
22 words
Container of claim 3, wherein said sealing element comprises a rip ring and preferably a weakening portion for tearing open said opening.
Claim 6
Dependent Claim
31 words
Container of claim 1 or 2, wherein said head piece is designed to be slidable on said suction pipe and is depressed onto said portion by means of a compression spring.
Claim 7
Dependent Claim
35 words
Container of claim 5, wherein said opening is sealed by means of a sealing element, which is impervious for said chemicals, and wherein said filter means is disposed on the outside of said sealing element.
Claim 8
Dependent Claim
22 words
Container of claim 6, wherein said sealing element comprises a rip ring and preferably a weakening portion for breaking open said opening.
Claim 9
Dependent Claim
116 words
Container for chemicals having a portion forming an opening for receiving a tube adapted to be entered into the container and leading to a metering pump, a head piece connectable to said portion and comprising a radially inwardly extending annular projection and a sealing ring positioned inwardly adjacent thereto and surrounding said tube to be entered, wherein an air path is provided between said portion and said head piece, said air path leading from the exterior into the interior of said container and ending between said projection and said portion, and a filter means is disposed in said air path between said projection and said portion, thereby degerminating air entering said container through said air path.
Claim 10
Dependent Claim
116 words
Container for chemicals having a portion forming an opening for receiving a tube adapted to be entered into the container and leading to a metering pump, a head piece connectable to said portion and comprising a radially inwardly extending annular projection and a sealing ring positioned inwardly adjacent thereto and surrounding said tube to be entered, wherein an air path is provided between said portion and said head piece, said air path leading from the exterior into the interior of said container and ending between said projection and said portion, and a filter means is disposed in said air path between said projection and said portion, thereby degerminating air entering said container through said air path.
Claim 11
Dependent Claim
30 words
Container of claim 8, wherein said sealing means is formed as a packing washer surrounding said tube to be received, said packing washer covering said filter means toward the exterior.
Claim 12
Dependent Claim
35 words
Container of claim 8 or 9, wherein said opening is sealed by a sealing element, which is impervious for said chemicals, and wherein said filter means is disposed on the outside of said sealing element.
Claim 13
Dependent Claim
22 words
Container of claim 10, wherein said sealing element comprises a rip ring and preferably a weakening portion for tearing open said opening.
Claim 14
Dependent Claim
31 words
Container of claim 8 or 9, wherein said head piece is designed to be slidable on said suction pipe and is depressed onto said portion by means of a compression spring.
Claim 15
Dependent Claim
107 words
Container for chemicals having a portion forming an opening for receiving a tube adapted to be entered into the container and leading to a metering pump and a head piece connectable to the said portion, wherein there is provided an air path between said portion and said head piece, said air path ending between said portion and said head piece, and filter means held between said portion and said head piece and connecting said air path with the interior of said container, and wherein said head piece comprises a packing washer surrounding said tube to be entered, said packing washer covering said filter means toward the exterior.
Claim 16
Dependent Claim
107 words
Container for chemicals having a portion forming an opening for receiving a tube adapted to be entered into the container and leading to a metering pump and a head piece connectable to the said portion, wherein there is provided an air path between said portion and said head piece, said air path ending between said portion and said head piece, and filter means held between said portion and said head piece and connecting said air path with the interior of said container, and wherein said head piece comprises a packing washer surrounding said tube to be entered, said packing washer covering said filter means toward the exterior.
Claim 17
Dependent Claim
33 words
Container of claim 13, wherein said opening is sealed by a sealing element, which is impervious for said chemicals, and wherein said filter means is disposed on the outside of said sealing element.
Claim 18
Dependent Claim
22 words
Container of claim 14, wherein said sealing element comprises a rip ring and preferably a weaking portion for tearing open said opening.
Claim 19
Dependent Claim
29 words
Container of claim 13, wherein said head piece is designed to be slidable on said suction pipe and is depressed onto said portion by means of a compression spring.
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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) | 1989-02-24 | 1989-08-26 | 1990-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-24 | 1993-08-26 | 1994-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-24 | 1997-08-26 | 1998-02-25 | $7700.00 | Window Closed / Lapsed |